Product Features
Quantity
WBK25-11 is an NSK WBK-series ball screw support unit (fixed side, round type, General use) with a bearing bore of 25 mm. It houses angular contact ball bearings (properly preloaded and grease packed) and ships complete with lock nut, set screw and brass pad, matching the finished shaft ends of NSK standard ball screws. All WBK support units are standard stocked items per the official NSK catalog.
Per the official NSK shaft-end tables (E3162 B27–B30), this unit matches: precision ball screw shaft dia. 32 mm; R-series rolled screw shaft dia. 32、36 mm.
Other sizes of this type
WBK04-11M, WBK06-11, WBK06-11M, WBK08-11, WBK08-11B, WBK08-11C, WBK10-11, WBK10-11C, WBK12-11, WBK12-11C, WBK15-11, WBK15-11C, WBK20-11
Matching items
Complete-Set Selection
We recommend quoting support units and lock nuts together with your ball screw: include the screw part number (or shaft diameter) in your inquiry and Nahshon will match fixed- and support-side units and lock nuts per the official NSK shaft-end tables (E3162 B27–B30) — one quotation, one complete delivery.
| Specification | Unit | WBK25-11 |
|---|---|---|
| Series | - | WBK support units (light load / small equipment) |
| Side / shape | - | Fixed side, round |
| Use | - | General use |
| Bearings | - | Angular contact ball bearings (preloaded and packed with the proper amount of grease) |
| Bearing bore d1 | mm | 25 |
| Basic dynamic load rating Ca (axial) | N | 20,200 |
| Load limit | N | 10,000 |
| Stiffness | N/µm | 192 |
| Max. starting torque | N·cm | 7.2 |
| For precision ball screw shaft dia. (std. shaft end) | mm | 32 |
| For R-series rolled screw shaft dia. (std. shaft end) | mm | 32、36 |
| Surface treatment | - | Black oxide |
| Accessories | - | Lock nut, set screw with brass pad and all mounting parts (do not disassemble fixed-side units) |
| Dimension table | - | NSK CAT. No. E3162 B385 (attached PDF) |
Support Units & Accessories・WBK support units (light load / small equipment)
