NSK
Positioning
A complete ball screw axis needs more than the screw itself: it needs support units, lock nuts and lubrication. This category lists NSK factory-standard items: WBK-series support units (fixed / simple support side, delivered with bearings, lock nuts and all mounting parts; standard stocked items), separately sold WBK**L lock nuts, and NSK grease (80 g bellows tubes) with the manual grease pump. Specifications per NSK CAT. No. E3162.
WBK Series at a Glance
| Type | Side | Bearings | Use |
|---|---|---|---|
| WBK**-01 (square) / WBK**-11 (round) | Fixed side | Angular contact ball bearings | Light load, small equipment; suffix B = low profile (for Compact FA), C = cleanroom, M = miniature |
| WBK**S-01 | Simple support side | Deep groove ball bearings | Light load, small equipment; suffixes B / C as above |
| WBK**SF-01 | Simple support side | Deep groove ball bearings | Exclusively for FSS / VFA transfer ball screws |
| WBK**R-11 | Fixed side | Deep groove bearings (angular-contact arrangement) | Support kits for RMS miniature rolled ball screws |
| WBK**DF*-31H | Fixed side | Angular contact thrust ball bearings (TAC) | Machine tools, high speed and high load; DF = 2-row, DFD = 3-row, DFF = 4-row |
Quote Together with Your Ball Screw
Once you have chosen a ball screw, simply add the matching support units and lock nut to the inquiry list. Not sure which one fits? Just give us the screw part number (or shaft diameter) — Nahshon will match fixed- and support-side units per the official NSK shaft-end tables, for one quotation and one complete delivery.
