Four-row linear recirculating ball bearing and guideway assemblies (MAI 91)
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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 running . Low-noise guidance system Running noise in linear guidance systems can be reduced by various methods. Schaeffler has decided to adopt plastic spacer elements so-called QUAD SPACERS. One quad spacer accommodates two rolling elements each from the compressive and tensile race- way. 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, particularly 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..-B-KT, Schaeffler 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.The KUVE..-B-KT is particularly suitable where the emphasis is on high dynamic characteristics and low noise.Both new carriage versions can be used on the existing guideways. Full complement guidance system The 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 characteristics as well as maximum load carrying capacity and rigidity. > 173 775a

KUVE..-B-KT Four-row linear recirculating ball bearing and guideway assembly with quad spacers scope of basic delivery KUVE..-B-KT > M k ֋C 173 695 Standard accessories > plastic dummy guidewaysprevent 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 plugsclose off the counterbores of the guideway holes flush with the top surface of the guideway >

Design of carriages > Contact angle, quad spacers The rows of balls run in a steel saddle plate with hardened and ground raceways at a contact angle of 45 in an O arrangement. In order to prevent noise from recirculation, the rolling elements are guided in plastic spacer units called Гquad spacers. The balls are recirculated in enclosed channels with plastic return elements. > 45ԋ Interchangeability The guideways and carriages can be freely interchanged and combined with each other (see page 5).This means: ڢ֠ more economical stockholding ■ simpler fitting > 173 733 ■ quicker sourcing of...

KUVE..-B-KT Guideway Guideway for carriageTKVD Size25 Guideway length1570 mm a Ordering example 2 Linear recirculating ball bearing and guideway assembly KUVE..-B-KT, carriage and guideway separate, symmetrical hole pattern Ordering designation: Carriage > L 35 mm35 mm CarriageKWVE Size25 Version with plastic spacer elementsB-KT Carriage variantL Accuracy classG3 Carriage preloadV2 ֖ a Ordering designation: > R 1 TKVD25/1570-35/35 (Figure 2). 2 KWVE25-B-KT-L-G3-V2 (Figure 2). > Figure 2 Ordering example, ordering designation >

Dimension table Dimensions in mm Unit Carriage Guideway Dimensions Designation Designation Mass Designation Mass Closing plug l > max1) H B L m m K > 2 kg kg/m KUVE15-B-KT KWVE15-B-KT 0,17 59,6 TKVD15-B(-U) > 7) 1,44 KA07-TN/A 1200 24 47 KUVE15-B-KT-L KWVE15-B-KT-L 0,21 73 KUVE20-B-KT KWVE20-B-KT 0,38 69,8 TKVD20(-U) 2,2 KA10-TN/A 1980 30 63 KUVE20-B-KT-L KWVE20-B-KT-L 0,5 87,3 KUVE25-B-KT KWVE25-B-KT 0,5 82,1 TKVD25(-U) 2,7 KA11-TN/A 1980 36 70 KUVE25-B-KT-L KWVE25-B-KT-L 0,62 107,9 > 1) Maximum length of single-piece guideways; longer guideways are supplied in several sections and are...

KUVE..-B-KT Locating faceMarking L Locating face Marking 1 JBADIN 71412-B M6 2B6) K 1 X G 2 311 55 L j L a R HTHh lJ K 3 HhA L L4a A L1max Ab 1 173 683 173 684

KUVE..-B-KT Locating faceMarking JBADIN 71412-B M6 Locating face Marking L 1 2B6) A L1 X G 2 K 1 311 55 HTHh Lmax j L a R lJ HhA L L4a Ab 1 173 688 173 689

Four-row linear recirculating ball bearing and guideway assembly, full complement scope of basic delivery KUVE..-B > M k KUVE..-B ֋C 173 789 Standard accessories > plastic dummy guidewaysprevent 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 plugsclose off the counterbores of the guideway holes flush with the top surface of the guideway >

Design of carriages > Contact angle The 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. Interchangeability > 45Ћ The carriages and guideways can be freely interchanged and combined with each other.This means: > 45ڋ ڢ֠ more economical stockholding ■ simpler fitting ■ quicker sourcing of replacement parts ■ the option of achieving several preload classes on one guideway, since the preload class is determined by the carriage > 173 178...

Guideway Guideway for carriageTKVD Size25 Guideway length1570 mm a Ordering example 2 Linear recirculating ball bearing and guideway assembly KUVE..-B, carriage and guideway separate, symmetrical hole pattern Ordering designation: Carriage > L 35 mm35 mm CarriageKWVE Size25 Version with full complement ball setB Carriage variantL Accuracy classG3 Carriage preloadV2 Ordering designation: ֖ a > R 1 TKVD25/1570-35/35 (Figure2). > KUVE..-B 2 KWVE25-B-L-G3-V2 (Figure2). > Figure 2 Ordering example, ordering designation >