Ball screws support bearing units

Online catalogue of NSK ball screws (included drawings)

Two variants of ball screw support bearing units:

With a heavy loads feature for machine tool applications. These bearing units are fitted with ball screw support precision bearings TAC, BSB.
With a light loads feature for small equipment with low load. These bearing units are fitted with standard angular contact ball bearings.

WBK series

WBK…01 – bearing unit for small equipment and light load. Square type, with angular contact ball bearings, inner diameter from 6 –25 mm.
WBK...S01 – bearing unit for small equipment and light load. Square type, with ball bearings, inner diameter from 6–25 mm.
WBK...SF-01 – bearing unit for small equipment and light load. Square type, with ball bearings, inner diameter from 12–15 mm. These bearing units are suitable especially for NSK ball screw type VFA.
WBK...R-11 – bearing unit for small equipment and light load. Round type, with angular contact ball bearings, inner diameter 4 mm or 6 mm. These bearing units are suitable especially for NSK ball screw, RMA and RMS type.
WBK...-11 – bearing unit for small equipment and light load. Round type, with angular contact ball bearings, inner diameter from 6–25 mm.
WBK…DF-31 – bearing unit for machine tools.

Three types of these bearings are produced, classified according to their internal arrangement:

DF arrangement – WBK...DF-31 series
DFD arrangement – WBK...DFD-31H series
DFF arrangement – DFF-31H series

BSCU series

The BSCU series of cartridge units with BSB ball screw support bearings has been developed to provide the machine manufacturer with easy to handle, ready-made unit giving excellent rigidity and accuracy. The unit incorporates a flange that can be bolted on to a flat surface which is perpendicular to the ball screw axis. They can be supplied with either paired or quadruplex bearing sets and, unless otherwise stated, they will be provided with a back-to-back bearing arrangement (DB).

BSPB series

The BSPB series of pillow block units is similar to the BSCU series but is designed to be bolted down onto a flat surface which is parallel to the ball screw axis. It permits easier adjustment of alignments using shims. They can be supplied with either paired or quadruplex bearing sets. Add suffix DU, DB or DF for duplex and QU, QB or QF for quadruplex to indicate the arrangement required.

More details in the catalogues:

ložiskové jednotky na podporu kuličkových šroubů / Ložiskové jednotky pro KŠ - Ball screws support bearing units

File	Size
332 ložiskové jednotky na podporu kuličkových šroubů AJ	258 kB
332 Ložiskové jednotky na podporu kuličkových šroubů (AJ)	237 kB
332 Ložiskové jednotky na podporu kuličkových šroubů AJ	1277 kB

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