Standard combined bearing
4.057 bearing dimensions and cross references
Low-profile standard combined bearing with a 77.7 mm radial roller outside diameter.
- Primary model
- 4.057
- Family
- Standard
- Application
- Forklift masts, compact lift guides and steel-section linear systems.
4.057 technical specifications
| d | 40 mm |
|---|---|
| D | 77.7 mm |
| H | 40 mm |
| Design | Fixed axial combined bearing |
| Material | 20CrMnTi |
Dimensions and catalog ratings are transferred from the authorized Jade Bearings product catalog. Verify the controlled drawing and current production data during quotation.
Cross-reference models
Common purchasing and maintenance references associated with this bearing include:
- 4.057
- JD77.7-40
- 400-0057
Replacement confirmation
Suffixes, seals, lubrication, outside-diameter variants, eccentric adjustment and mounting plates can change fit. Send the complete marking and a measured or controlled drawing for confirmation.
Applications and selection checks
Forklift masts, compact lift guides and steel-section linear systems.
Related combined bearing models
2.0363 
4.060 
4.053 
4.054 4.057 combined bearing FAQ
Is 4.057 interchangeable with JD77.7-40?
The references are commonly associated with the same product family, but interchangeability must be confirmed from d, D, H, mounting details, axial-roller execution, load and operating conditions before ordering.
What information is required to quote a 4.057 combined bearing?
Send the full marking, quantity, delivery country and, where possible, a bearing photo or drawing. We verify the dimensional envelope and fixed, precision or adjustable execution before quotation.
Is this an official WINKEL product?
Combined Bearing Source is an independent supplier. WINKEL and other brand references are used only to identify the requested replacement. The supplied product is an independent compatible replacement unless an original branded product is expressly quoted.