Standard combined bearing
4.057
Low-profile standard combined bearing with a 77.7 mm radial roller outside diameter.
Cross-reference note: WINKEL and other manufacturer designations are used for buyer identification. We manufacture compatible bearings to the confirmed drawing unless an original branded product is expressly quoted.
Specifications
4.057 technical data
| d | 40 mm |
|---|---|
| D | 77.7 mm |
| H | 40 mm |
| Design | Fixed axial combined bearing |
| Material | 20CrMnTi |
Selection notice: Dimensions and catalog ratings are factory reference data. Verify the controlled drawing during quotation.
4.057 cross references
Common purchasing and maintenance references include 4.057 · JD77.7-40 · 400-0057.
Suffixes, seals, lubrication, OD variants and mounting plates can change fit. Send the complete marking and a controlled drawing for confirmation.
Execution guidance
Standard design and inspection
Design function
A fixed axial roller supports combined radial and side load in a compact mast-guide envelope.
Installation and adjustment
Set running clearance through the mating profile and mounting position; the axial roller itself is not eccentric-adjustable.
Inspection focus
Verify radial OD, overall height, axial-roller position, stud geometry and smooth rotation.
Application
Application and RFQ checklist
Forklift masts, compact lift guides and steel-section linear systems.
Information required for selection
- Dimensions
- d, D, H, B, S, T and plate or stud geometry
- Load
- Radial load, axial load, shock, speed and duty cycle
- Execution
- Standard, precision, fixed axial or eccentric-adjustable
- Environment
- Temperature, contamination, sealing and lubrication
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