Product Features
Quantity
WBK04R-11 is an NSK WBK fixed-side support kit (round type) exclusively for RMS precision rolled miniature ball screws: bearing bore 4 mm, deep groove ball bearings in an angular-contact arrangement, basic dynamic load rating Ca 615 N, load limit 490 N, stiffness 6.5 N/µm, max. starting torque 0.59 N·cm. The kit ships on a provisional shaft (bolt) and is transferred onto the screw at assembly; use general support units for RMA1002 or larger rolled screws.
Other sizes of this type
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 | WBK04R-11 |
|---|---|---|
| Series | - | WBK support kits (for miniature ball screws) |
| Side / shape | - | Fixed side, round |
| Use | - | Exclusively for RMS precision rolled miniature ball screws (use general support units for RMA1002 or larger) |
| Bearings | - | Deep groove ball bearings (angular-contact arrangement) |
| Bearing bore | mm | 4 |
| Basic dynamic load rating Ca (axial) | N | 615 |
| Load limit | N | 490 |
| Stiffness | N/µm | 6.5 |
| Max. starting torque | N·cm | 0.59 |
| Dimension table | - | NSK CAT. No. E3162 B389 (attached PDF) |
Support Units & Accessories・WBK support kits (for miniature ball screws)
