Market Information MAI 91 - PDF document

1 Market Information MAI 91 Quad spacersfo
Market Information MAI 91 Quad spacersfor quiet ru Dynamic characteristics, high load carrying capacity, little space requirement, small moving masses, low-maintenance or maintenance-free, high operational reliability. These are the demands now made on linear bearing arrangements and are fulfilled to a greater or lesser degree by the various guidance system concepts available. In many applications, however, a further central characteristic has been added to these: low-noise runningLow-noise guidance systemRunning noise in linear guidance systems can be reduced by various methods. INA has decided to adopt plastic spacer elements – so-called QUAD SPACERS. One quad spacer accommodates two rolling elements each from the compressive and tensile raceway. Since the balls are not in contact with each other, there is no collision noise. This reduces the noise in the recirculating system and the guidance systems run significantly more quietly.Since the quad spacers are not connected chain elements, bending and tensile stresses are eliminated, pa

2 rticularly in the return area. Under hig
rticularly in the return area. Under highly dynamic operating conditions or with ingress of contaminant particles into the guidance system, this design also averts the risk of fracture.With its new linear recirculating ball bearing and guideway assembly KUVE..BKT, INA is providing a technologically pioneering product for low-noise applications. This linear guidance system possesses all the advantages of the highly successful full complement KUVE design and represents an optimum addition to the already extensive range of these units. In this way, the INA range now includes the ideal product for any application.KUVE..BKT is particularly suitable for applications where the emphasis is on high dynamic characteristics in conjunction with low-noise running.173 775Full complement guidance systemThe established and proven full complement KUVE series has been completely revised in technical terms. Due to the full complement concept, the KUVE..B version has a high load carrying capacity. It is therefore used where the emphasis is on dynamic char

3 acteristics as well as maximum load carr
acteristics as well as maximum load carrying capacity and rigidity. 2 Four-row linear ball bearing and guideway assemblieswith quad spacersPagePreload................................................................Friction................................................................20Accuracy.............................................................21Demands on the adjacent construction..............24Ordering example and ordering designation......6 FeaturesFour-row linear ball bearing and guideway assembliesare complete units comprising:–at least one carriage KWVE..BKT–a guideway TKVD(U), TKVD..ZHP or TKVD..K with two locating edges in each case–plastic spacer elements to guide the rolling elements–integral elastic wipers and sealing strips on the end faces and longitudinal faces of the carriage–two-piece plastic closing plugsrun with less noise than full complement designscan support loads from all directions – apart from the direction of motion – and moments about all axesare preloaded–the preload is determined by the carriage

4 are lubricated via the lubrication nippl
are lubricated via the lubrication nipple in the end piece (on the end face or from the side) with grease or oil–the end face lubrication nipple is included in the delivery–the lubrication nipple for relubrication from the side is available by agreementare based on a modular concept (see also Interchangeability, page4)–guideways can be combined with all carriage types within one size–can be ordered separately as a carriage KWVE..BKT and guideway TKVD or as a unit KUVE..BKT. In a unit, one or more carriages can be mounted on a guidewayare suitable for:–accelerations up to 150m/s–speeds up to 360m/min–operating temperatures from –10°C to +100°Ccan also be supplied with multi-piece guideways–see Multi-piece guideways, page23are used in applications with:–long, unlimited stroke lengths–high dynamic characteristics–high running and positional accuracy–low friction–low noise levels. Carriage saddle plate with hardened and precision ground rolling element raceways–balls are recirculated in enclosed channels with plastic return elementscarriag

5 e sealed by elastic end wipers and seali
e sealed by elastic end wipers and sealing stripsend piece lubrication nipple included Guideway hardened steel, all surfaces ground–precision ground raceways for rolling elementsTKVD:located from aboveTKVD..U:located from belowTKVD..K:for clamping lugs and clamping stripsTKVD..ZHP:with helical teeth KWVE..B KT 1 2 173 758 3 KUVE..B KT Four-row linear recirculating ball bearing and guideway assembly with quad spacers – scope of basic delivery k0M
Standard accessories plastic dummy guideways–prevent damage to the rolling element set while the carriage is separated from the guideway. The carriage is always pushed direct from the guideway onto the dummy guideway two-piece plastic closing plugs–close off the counterbores of the guideway holes flush with the top surface of the guideway KUVE..B KT173 695 173 711MKVD 173 729KA..TN A 4 Four-row linear recirculating ball bearing and guideway assemblieswith quad spacers Design of carriagesThe rows of balls run in a steel saddle plate with hardened and ground raceways at a contact angle of 45° i

6 n an O arrangement. In order to prevent
n an O arrangement. In order to prevent noise from recirculation, the rolling elements are guided in plastic spacer elements called “quad spacers”. The balls are recirculated in enclosed channels with plastic return elements.InterchangeabilityThe guideways and carriages can be freely interchanged and combined with each other (see page5).This gives:more economical stockholdingsimpler fittingquicker sourcing of replacement partsthe option of achieving several preload classes on one guideway, since the preload class is determined by the carriageversatile design possibilities for KUVE guidance systems using standard elements.Corrosion-resistant designsKUVE..BKT is also available with the Corrotect plating.If carriages and guideways are ordered separately, the following applies:carriage and guideway with anti-corrosion protection:–suffix RRF.If units are supplied preassembled, there are two variants:carriage and guideway with anti-corrosion protection–suffix RRFguideway with anti-corrosion protection only–suffix RRFT.Lubricant reservoir, se

7 alingDue to the integral lubricant reser
alingDue to the integral lubricant reservoir , the linear ball bearing and guideway assemblies have long relubrication intervals; depending on the application, they may even be maintenance-free.Standard sealing strips as well as additional sealing strips (optional) ensure effective sealing.These sealing elements protect the rolling element system from contamination even under demanding environmental conditions.Additional sealing strips have the suffix FA551. Contact angle, quad spacers quad spacers (plastic spacer elements)contact angles of the four rows of ballsrows of balls in two point contact with raceways Lubricant reservoir, sealing integral lubricant pockets with grease reservoir standard sealing strip optional sealing strip elastic wipers on end faces 45û 173 733 4 2 KUVE..B KT173 697 5 KUVE..B KT KWVE..B KT SKWVE..B KT SLKWVE..B KT HKWVE..B KT HLTKVDTKVD..KTKVD..ZHPTKVD..U KWVE..B KTKWVE..B KT L 173 735 6 Four-row linear ball bearing and guideway assemblieswith quad spacersOrdering example and ordering designationOrdering e

8 xample 1Linear recirculating ball bearin
xample 1Linear recirculating ball bearing and guideway assembly KUVE..BKT, asymmetrical hole patternOrdering designation:1 off KUVE 25 B KT W2 G3 V2 RRFT/1510-50/20 (Figure1).Figure 1 áOrdering example, ordering designationFour-row ball bearing and guideway assemblyKUVESize25Version with plastic spacer elementsBKTNumber of carriages per unitW2Accuracy classG3Carriage preloadV2Guideway with Corrotect platingRRFTGuideway length1510mm50mm20mm 2525 50201510 173 740 7 KUVE..B KT Ordering example 2Linear recirculating ball bearing and guideway assembly KUVE..BKT, carriage and guideway separate, symmetrical hole patternOrdering designation:2 off KWVE 25 B KT L G3 V2 (Figure2).Ordering designation:1 off TKVD 25/1570-35/35 (Figure2).Figure 2 áOrdering example, ordering designationCarriageCarriageKWVESize25Version with plastic spacer elementsBKTCarriage variantLAccuracy classG3Carriage preloadV2GuidewayGuideway for carriageTKVDSize25Guideway length1570mm35mm35mm 35351570

KWVE 25 B KT L G3 V2173 741 8 Four-row linear ball bearing and guideway

9 assemblieswith quad spacersSeriesKUVE..
assemblieswith quad spacersSeriesKUVE..BKTKUVE..BKTLTKVD..U 172 338 Maximum length of single-piece guideways; longer guideways are supplied in several sections and are marked accordingly. Maximum single-piece guideway length of 6m by agreement. and a are dependent on the guideway length, Calculation, page23.If there is a possibility of settling, the fixing screws should be secured against rotation.For information on fixing screws see INA Catalogue 605Fixing screwsCalculation of basic load ratings in accordance with DIN636. Based on practical experience, it may be possible to increase the basic dynamic load rating.Lubrication nipple with tapered head to DIN71412M6, except for KUVE20BKT: DIN71412M5 and KUVE15BKT: drive fit lubrication nipple. Dimension table · Dimensions in mm Unit Carriage Guideway Dimensions Designation Designation Mass Designation Mass Closing plug max 2 kg/m KUVE 15 B KT KWVE 15 B KT 0,17 TKVD 15 B (U) 1,44 KA 07 TN A 1200 59,6 KUVE 15 B KT L KWVE 15 B KT L 0,21 KUVE 20 B KT KWVE 20 B KT 0,38 TKVD 20 (U) 2,2 KA 10 T

10 N A 1980 69,8 KUVE 20 B KT L KWVE 20 B K
N A 1980 69,8 KUVE 20 B KT L KWVE 20 B KT L 0,5 87,3 KUVE 25 B KT KWVE 25 B KT 0,56 TKVD 25 (U) 2,7 KA 11 TN A 1980 82,1 KUVE 25 B KT L KWVE 25 B KT L 0,62 107,9 Load directions MM C, CC, C 173 685 9 KUVE..B KT KUVE..BKT (L)KUVE..BKT (L) · View X (rotated 90°) Ab1 HTHh55 JBADIN 71412-A M62B HhA311 G2 K3 173 683 L1 173 684 Mounting dimensions Fixing screws3)4) 1 B 2 1 L L L 1 5 3 5 7 1 1 2 1 3 ISO 4762-12.9 min. 4,5 39,8 1,5 4,5 4,75 8,15 53,2 21,5 50,4 4,5 5,25 7,5 9,1 67,9 23,5 6,5 60,7 5,5 5,25 18,7 8,7 86,5 Load carrying capacity (for definition of basic load ratings, see INA Catalogue 605UnitDesignationBasic load ratingsMoment ratings KUVE 15 B KT 6100 11400 KUVE 15 B KT L 7900 16500 105 KUVE 20 B KT 11800 23000 KUVE 20 B KT L 14400 30500 225 225 KUVE 25 B KT 16200 32000 210 200 KUVE 25 B KT L 21100 47000 430 410 10 Four-row linear ball bearing and guideway assemblieswith quad spacersSeriesKUVE..BKTSKUVE..BKTHKUVE..BKTSLKUVE..BKTHLTKVD..U 172 338 Maximum length of single-piece guideways; longer guideways are supplied in several sec

11 tions and are marked accordingly. Maximu
tions and are marked accordingly. Maximum single-piece guideway length of 6m by agreement. and a are dependent on the guideway length, Calculation, page23.If there is a possibility of settling, the fixing screws should be secured against rotation.For information on fixing screws see INA Catalogue 605Fixing screwsCalculation of basic load ratings in accordance with DIN636. Based on practical experience, it may be possible to increase the basic dynamic load rating.Lubrication nipple with tapered head to DIN71412M6, except for KUVE20B: DIN71412M5 and KUVE15B: drive fit lubrication nipple. Dimension table · Dimensions in mm Unit Carriage Guideway Dimensions Designation Designation Mass Designation Mass Closing plug max 2 kg/m KUVE 20 B KT S KWVE 20 B KT S 0,3 TKVD 20 (U) 2,2 KA 10 TN A 1980 69,8 KUVE 20 B KT SL KWVE 20 B KT SL 0,4 87,3 KUVE 25 B KT S KWVE 25 B KT S 0,57 TKVD 25 (U) 2,7 KA 11 TN A 1980 82,1 KUVE 25 B KT H KWVE 25 B KT H 0,61 KUVE 25 B KT SL KWVE 25 B KT SL 0,79 107,9 KUVE 25 B KT HL KWVE 25 B KT HL 0,86 Load directions MM C

12 , CC, C 173 690 11 KUVE..B KT KUVE..BKTS
, CC, C 173 690 11 KUVE..B KT KUVE..BKTS (H, SL, HL)KUVE..BKTS (H, SL, HL) · View X (rotated 90°) Ab1 HTHh55 JBADIN 71412-A M62BLocating faceMarking HhA311 G2 173 688 L1 K1jLaRlLocating faceJLaLmax L1 L4 173 689 Mounting dimensions Fixing screws3)4) 1 B 2 1 L L L 1 5 3 5 7 1 1 2 1 ISO 4762-12.9 min. max. 50,4 4,5 5,25 7,5 9,1 67,9 12,5 6,5 60,7 5,1 5,25 18,7 8,7 86,5 Load carrying capacity(for definition of basic load ratings, see INA Catalogue 605UnitDesignationBasic load ratingsMoment ratings KUVE 20 B KT S 11800 23000 130 127 KUVE 20 B KT SL 14400 30500 225 225 KUVE 25 B KT S 16200 32000 210 200 KUVE 25 B KT H 16200 32000 210 200 KUVE 25 B KT SL 21100 47000 430 410 KUVE 25 B KT HL 21100 47000 430 410 12 Four-row linear ball bearing and guideway assembliesfull complementPagePreload................................................................Friction................................................................20Accuracy.............................................................21Demands on the adjacent construction............

13 ..24Ordering example and ordering design
..24Ordering example and ordering designation......16 FeaturesFour-row linear ball bearing and guideway assembliesare complete units comprising:–at least one carriage KWVE..B–a guideway TKVD(U), TKVD..ZHP or TKVD..K with two locating edges in each case–integral elastic wipers and sealing strips on the end faces and longitudinal faces of the carriage–two-piece plastic closing plugs–a full complement ball setcan support loads from all directions – apart from the direction of motion – and moments about all axesare preloaded–the preload is determined by the carriageare lubricated via the lubrication nipple in the end piece (on the end face or from the side) with grease or oil–the end face lubrication nipple is included in the delivery–the lubrication nipple for relubrication from the side is available by agreementare based on a modular concept (see also Interchangeability, page14)–guideways can be combined with all carriage types within one size–can be ordered separately as a carriage KWVE..B and guideway TKVD or as a unit KUVE..B. In a un

14 it, one or more carriages can be mounted
it, one or more carriages can be mounted on a guidewayare suitable for:–accelerations up to 150m/s–speeds up to 360m/min–operating temperatures from –10°C to +100°Ccan also be supplied with multi-piece guideways–see Multi-piece guideways, page23are used in applications with:–long, unlimited stroke lengths–high loads–high running and positional accuracy–low friction–high rigidity. Carriage saddle plate with hardened and precision ground rolling element raceways–balls are recirculated in enclosed channels with plastic return elementscarriage sealed by elastic end wipers and sealing stripsend piece lubrication nipple included Guideway hardened steel, all surfaces ground–precision ground raceways for rolling elementsTKVD:located from above TKVD..U:located from below TKVD..K:for clamping lugs and clamping strips TKVD..ZHP:with helical teeth KWVE..B 1 2 173 758 13 Four-row linear recirculating ball bearing and guideway assembly, full complement – scope of basic delivery k0M
Standard accessories plastic dummy guideways–prevent damage to th

15 e rolling element set while the carriage
e rolling element set while the carriage is separated from the guideway. The carriage is always pushed direct from the guideway onto the dummy guideway two-piece plastic closing plugs–close off the counterbores of the guideway holes flush with the top surface of the guideway KUVE..B173 789 173 711MKVD 173 729KA..TN A 14 Four-row linear recirculating ball bearing and guideway assembliesfull complement Design of carriagesThe rows of balls run in a steel saddle plate with hardened and ground raceways at a contact angle of 45° in an O arrangement.The full complement ball set is recirculated through channels in the steel saddle plate.InterchangeabilityThe carriages and guideways can be freely interchanged and combined with each other.This gives:more economical stockholdingsimpler fittingquicker sourcing of replacement partsthe option of achieving several preload classes on one guideway, since the preload class is determined by the carriageversatile design possibilities for KUVE guidance systems using standard elements.Corrosion-resistant de

16 signsKUVE..B is also available with the
signsKUVE..B is also available with the Corrotect plating.If carriages and guideways are ordered separately, the following applies:carriage and guideway with anti-corrosion protection:–suffix RRF.If units are supplied preassembled, there are two variants:carriage and guideway with anti-corrosion protection–suffix RRFguideway with anti-corrosion protection only–suffix RRFT.Lubricant reservoir, sealingDue to the integral lubricant reservoir , the linear ball bearing and guideway assemblies have long relubrication intervals; depending on the application, they may even be maintenance-free.Standard sealing strips as well as additional sealing strips (optional) ensure effective sealing.These sealing elements protect the rolling element system from contamination even under demanding environmental conditions.Additional sealing strips have the suffix FA551. Contact angle contact angles of the four rows of ballsrows of balls in two point contact with raceways Lubricant reservoir, sealing integral lubricant pockets with grease reservoir standa

17 rd sealing strip optional sealing strip
rd sealing strip optional sealing strip elastic wipers on end faces 45û 45û 173 178 4 2 KUVE..B173 795 15 16 Four-row linear ball bearing and guideway assembliesfull complementOrdering example and ordering designationOrdering example 1Linear ball bearing and guideway assembly KUVE..B, asymmetrical hole patternOrdering designation:1 off KUVE 25 B W2 G3 V2 RRFT/1510-50/20 (Figure1).Figure 1 áOrdering example, ordering designationFour-row ball bearing and guideway assemblyKUVESize25Full complement versionBNumber of carriages per unitW2Accuracy classG3Carriage preloadV2Guideway with Corrotect platingRRFTGuideway length1510mm50mm20mm KUVE 25 B W2 G3 V2 RRFT/1510-50/20 50201510 2525 173 796 17 Ordering example 2Linear ball bearing and guideway assembly KUVE..B, carriage and guideway separate, symmetrical hole patternOrdering designation:2 off KWVE 25 B L G3 V2 (Figure2).Ordering designation:1 off TKVD 25/1570-35/35 (Figure2).Figure 2 áOrdering example, ordering designationCarriageCarriageKWVESize25Full complement versionBCarriage variantLAc

18 curacy classG3Carriage preloadV2Guideway
curacy classG3Carriage preloadV2GuidewayGuideway for carriageTKVDSize25Guideway length1570mm35mm35mm 351570 2

25 173 797 18 Four-row linear ball bearing and guideway assembliesfull complementSeriesKUVE..BKUVE..BLTKVD..U 172 338 Maximum length of single-piece guideways; longer guideways are supplied in several sections and are marked accordingly. Maximum single-piece guideway length of 6m by agreement. and a are dependent on the guideway length, Calculation, page23.If there is a possibility of settling, the fixing screws should be secured against rotation.For information on fixing screws see INA Catalogue 605Fixing screwsCalculation of basic load ratings in accordance with DIN636. Based on practical experience, it may be possible to increase the basic dynamic load rating.Lubrication nipple with tapered head to DIN71412M6, except for KUVE20B: DIN71412M5. Dimension table · Dimensions in mm Unit Carriage Guideway Dimensions Mounting dimensions Designation Designation Designation Mass Closing plug max 1 B 2 2 kg/m KUVE 20 B KWVE 20 B 0,5

19 8 TKVD 20 (U) 2,2 KA 10 TN A 1980 69,8 2
8 TKVD 20 (U) 2,2 KA 10 TN A 1980 69,8 21,5 KUVE 20 B L KWVE 20 B L 0,8 87,3 KUVE 25 B KWVE 25 B 0,71 TKVD 25 (U) 2,7 KA 11 TN A 1980 81,7 23,5 6,5 KUVE 25 B L KWVE 25 B L 1 107,5 Load directions C, CC, C172 341 19 KUVE..B (L)KUVE..B (L) · View X (rotated 90°) G2 K3 K6 DIN 71412-A M6 HhA311 JBAB X HHTHh455 Ab1 T6Locating face 173 776 L1JLZ1jLaRlLocating faceJLLG2JB4aLAL1max 173 790 Fixing screws3)4) 1 L L L 1 4 5 3 5 6 7 1 1 2 1 3 6 ISO 4762-12.9 min. max. 50,4 4,5 7,5 9,1 67,9 60,7 5,4 10,9 18,7 8,7 86,5 Load carrying capacity (for definition of basic load ratings, see INA Catalogue 605UnitDesignationBasic load ratingsMoment ratings KUVE 20 B 13100 27000 332 240 KUVE 20 B L 16200 36500 452 430 KUVE 25 B 17900 37000 510 395 KUVE 25 B L 23400 54000 745 825 20 Four-row linear ball bearing and guideway assemblieswith quad spacers or full complementPreloadLinear recirculating ball guidance systems KUVEB(KT) are available in the preload classes in Table1.The preload class is determined by the carriage.Influence of preload on the linear guid

20 ance systemIncreasing the preload increa
ance systemIncreasing the preload increases the rigidity. However, preload also influences the displacement resistance and operating life of linear guidance systems. C is the basic dynamic load rating of the linear recirculating ball bearing and guideway assembly according to the dimension tableStandard preload class.FrictionThe coefficient of friction is dependent on the ratio C/P. For a guidance system without seals and with a load ratio of between C/P=4 to C/P=20, it is:KUVE = 0,0007 to 0,0015.Table 1 áPreload classes Preload class Preload setting Suitable applicationsV0Clearance-freeparticularly smooth-runningmoment loads0,04·Cmoderate loadshigh rigiditymoment loadsV20,1·Chigh alternating loadsparticularly high rigiditymoment loads 21 AccuracyAccuracy classes of linear recirculating ball bearing and guideway assembliesFour-row linear recirculating ball bearing and guideway assemblies are available in accuracy classes G1 to G4 (Figure1).The tolerances are arithmetic mean values. They relate to the centre point of the screw mounting

21 or locating surfaces of the carriage. Th
or locating surfaces of the carriage. The dimensions H and A (Table2) should always remain within the tolerance irrespective of the position of the carriage on the guideway.For accuracy class tolerances see Table2, for reference dimensions see Figure2.Units with Corrotect platingFor these units, the values for the appropriate accuracy class must be increased by the values for RRF or RRFT (for values see Table2). Dimensional difference between several carriages on one guideway, measured at the same point on the guideway.Displacement in tolerance zone (guideway and carriage plated).Displacement in tolerance zone (guideway only plated).Standard accuracy class.Figure 1 áAccuracy classes and parallelism tolerances of guidewaysFigure 2 áReference dimensions for accuracyTable 2 áAccuracy class tolerances Tolerance Accuracy classes With Corrotectplating m m m m 2)m RRFTHeight toleranceH80+6+3Height differenceH51020+30Distance tolerance80+3+3Distance difference71530+30 1000mmTotal guideway length 5t )5t )5t ) TKVD (U) Measured deviation 173 1

22 81 HA1 173 686 22 Four-row linear ball b
81 HA1 173 686 22 Four-row linear ball bearing and guideway assemblieswith quad spacers or full complementParallelism of raceways to locating surfacesThe parallelism tolerances of the guideways are shown in Figure1.For systems with Corrotect plating, there may be deviationsin tolerances compared with unplated units.Positional tolerances of guidewaysThe positional tolerances are shown in Figure3.Length tolerances of guidewaysFor length tolerances see Figure3 and Table3. Length lmax: see: dimension tableFigure 3 áPositional tolerances of guideways – hole pattern to ISO1101Table 3 áLength tolerances of guideways Four-row ball bearing and guideway assembly Tolerances of guideways, as a function of the length lmax Multi-piece guideways max Designation 1000mm 1000mm3000mm 3000mmKUVE..B(KT)–1mm–1,5mm0,1% of guideway length3mm over whole length /2j Lj 0,4 173 188a 23 Hole pattern of guidewaysUnless specified otherwise, the guideways have a symmetrical hole pattern.An asymmetrical hole pattern may be available upon customer request.The followin

23 g must be adhered to:Lmin and aRmin (Fig
g must be adhered to:Lmin and aRmin (Figure4).Maximum number of pitches between holesThe number of pitches between holes is the rounded whole number equivalent to:The distances a and a are determined by:For guideways with a symmetrical hole pattern:Number of holes:Distance between start or end of guideway and nearest holeLminRminMinimum values for a according to the dimension tablemaxGuideway lengthMaximum number of pitches between holesDistance between holesNumber of holes. Figure 4 áSymmetrical and asymmetrical hole patterns for guideways with one row of holesFigure 5 áMarking of multi-piece guidewaysThe minimum and maximum values for aLmin and aRminmust be observed (dimension table), otherwise the counterbores may be intersected by the end of the guideway.Multi-piece guidewaysIf the guideway length required is greater than lmax according to the dimension table, a guideway of the total length is made up from individual sections. The individual sections are matched to each other and marked accordingly (Figure5). maxLmin-------------

24 ------------------------------ max maxxn
------------------------------ max maxxn1 aa jLaLjL aRL 173 182 1A1B1C2A2B2C1A1B1C2A2B2C Marking156 211 24 Four-row linear ball bearing and guideway assemblieswith quad spacers or full complementDemands on the adjacent constructionRunning accuracy of linear guidance systemsThe running accuracy is essentially dependent on the straightness, accuracy and rigidity of the fit and mounting surfaces. The straightness of the system is only achieved when a guideway is pressed against the datum surface.If high demands are to be made on the running accuracy and/or if soft substructures and/or movable guideways are used, please consult INA.Geometrical and positional accuracy of the mounting surfacesThe higher the requirements for accuracy and smooth running of the guidance system, the more attention must be paid to the geometrical and positional accuracy of the mounting surfaces.The tolerances in Figure6 and Table5 must be adhered toSurfaces should be ground or precision milled with the aim of achieving a mean roughness value of R1,6.Deviations f

25 rom the specified tolerances:–will impai
rom the specified tolerances:–will impair the overall accuracy of the guidance system–will alter the preload–will reduce the operating life of the guidance system.Height difference The permissible values for H (Figure6) are given by the for-mula below. If larger deviations are present, please consult INA.Maximum permissible deviation from the theoretically precise positionFactor dependent on preload class (Table4)bmmCentre distance between guidance elements. Standard preload class.Figure 6 áTolerances of mounting surfaces and parallelism of mounted guideways Table 4 áFactor a Ð dependent on preload class Preload class FactorV0–0,2V20,1 Hab AAA BBA b A A b ttttttt HHNot convex(for all machined surfaces)Not convex(for all machined surfaces) C t b H 173 687 25 Parallelism of mounted guidewaysFor guideways arranged parallel to each other, the parallelism value t given in Figure6 and Table5 should be adhered to.If the maximum values are used, this may increase the displacement resistance. If larger tolerances are present, please consult IN

26 A.Table 5 áValues for parallelism tolera
A.Table 5 áValues for parallelism tolerances t GuidewayDesignation Preload class V0 Parallelism tolerance t
m
m TKVD 15 B (U)1185TKVD 20 (U)1396TKVD 25 (U)17117 26 Four-row linear ball bearing and guideway assemblieswith quad spacers or full complementLocating heights and corner radiiLocating heights and corner radii should be in accordance with Figure7 and Table6.Figure 7 áLocating heights and corner radiiTable 6 áLocating heights and corner radii Linear ball bearing and guideway assemblyDesignation 1 2 1 max.KUVE 15 B KT– L, S4,53,510,5KUVE 20 B5410,5KUVE 20 B KTL, S, SLKUVE 25 B54,510,8KUVE 25 B KT– L, S, H, SL, HL rhr112 2 h 173 694 27 Sales companyEngineering service Sales companyINA-Schaeffler KG91072 Herzogenaurach (Germany)Postal address:Industriestraße 1–391074 HerzogenaurachTel.(09132) 82-0Fax(09132) 82-4950E-mail: info@ina.com LahrMünchenMonheimRodgau-JügesheimQuickbornHannoverBerlinSteinhagenChemnitz 100 301 Engineering service Northern RegionNorthern Regional OfficePostfach 10033240767 MonheimPostal address:An der Alten Z

27 iegelei 140789 MonheimTel.(02173) 9524-0
iegelei 140789 MonheimTel.(02173) 9524-0Fax(02173) 9524-25Engineering Office – Rhein-RuhrEngineering Office – SiegenAutomotive Office – MonheimTechnical Officeand Linear Technology – MonheimEngineering Office – BerlinCunostraße 6414193 BerlinTel.(030) 82640-51/-52Fax(030) 8266460Engineering Office – BielefeldGottlieb-Daimler-Straße 2–433803 SteinhagenTel.(05204) 999-500Fax(05204) 999-501Engineering Office – HamburgPascalkehre 1325451 QuickbornTel.(04106) 73083Fax(04106) 71977Engineering Office – HanoverAutomotive Office – HanoverTechnical Officeand Linear Technology – HanoverPostfach 81032930503 HannoverPostal address:Hildesheimer Straße 28430519 HannoverTel.(0511) 984699-0Fax(0511) 8437126 Central RegionCentral Regional OfficeEngineering Office – OffenbachGutenbergstraße 1363110 Rodgau-JügesheimTel.(06106) 8506-0Fax(06106) 8506-49Automotive Office – Central RegionTel.(06106) 8506-30Fax(06106) 8506-35Technical Officeand Linear Technology – Central RegionTel.(06106) 8506-50Fax(06106) 8506-54Engineering Office – NurembergIndustriestraße

28 1–391074 HerzogenaurachTel.(09132) 82-23
1–391074 HerzogenaurachTel.(09132) 82-2347Fax(09132) 82-4930Engineering Office – ChemnitzRabenstein-CenterOberfrohnaer Straße 6209117 ChemnitzTel.(0371) 84272-0Fax(0371) 84272-15Technical Officeand Linear Technology – ChemnitzTel.(0371) 84272-31Fax(0371) 84272-15 Southern RegionSouthern Regional OfficeEngineering Office – StuttgartSouthern Regional OfficeUntere Waldplätze 3270569 StuttgartTel.(0711) 68787-0Fax(0711) 68787-10Automotive Office – Southern RegionTechnical Office – Southern RegionEngineering Office – LahrPostfach 176077907 LahrPostal address:Rheinstraße 1777933 LahrTel.(07821) 584237Fax(07821) 51571Engineering Office – MunichAutomotive Office – MunichTechnical Officeand Linear Technology – MunichLackerbauerstraße 2881241 MünchenTel.(089) 896074-0Fax(089) 896074-20 INA-Schaeffler KGLinear Technology Division66406 Homburg (Saar) á GermanyInternetwww.ina.comE-Mailinfo.linear@de.ina.comIn Germany:Telephone0180/5003872Fax0180/5003873From other countries:Telephone+49/6841/701-0Fax+49/6841/701-625Sach-Nr. 017-411-360/MAI 91 GB-D 0