VXseries crossed roller bearings
|Designation||Dimensions||Fixing holes||Fixing screws
(friction locking) kN
|Da h6||di J6||Ha||hi||Di||da||La||n 1) B||dB||ds||ts|
XV Crossed roller bearing, sealed on both sides, greased, with clearance, can be preloaded by locknut, inner ring circumferentially split, outer ring can be screw mounted directly on the adjacent construction.
Influences on the operating life of crossed roller bearings .The operating life is the life actually achieved by a crossed roller bearing. This can deviate significantly from the calculated basic rating life due to wear and/or fatigue.
crossed roller bearings of series XV are sealed. For severe contamination, spray or flood water etc., however, additional sealing of the bearing arrangement in the adjacentconstruction may be necessary.
Possible causes include:
■ oscillating bearing motion with very small swivel angles –
■ vibration while the bearing is stationary
■ unsuitable design or deformation of the adjacent
■ excessively high operating temperatures
■ incorrect maintenance or lubrication
■ incorrect fitting
■ insufficient preload of the fixing screws.
Due to the variety of installation and operating conditions,it is not possible to precisely predetermine the operating life.The most reliable way of arriving at a close estimate is by comparison with similar applications.
Crossed roller bearings XV
■ are screwed mounted through the outer ring to the adjacent construction – the inner ring is located by means of a locknut
■ can be adjusted very precisely to give clearance or preload by means of the locknut.
■ cylindrical rollers to DIN 5402, spacers made from plastic
■ inner ring split in circumferential direction
■ sealed on both sides
■ for operating temperatures from –30 C to +80C
■ for shaft diameters from 30 mm to 10 mm
■ two lubrication nipples radially and two lubrication nipples axially
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