Manufactured by CHG Bearing, the 55*86 is a precision Cylindrical Rollers. Key dimensional parameters include a mm bore diameter, a mm outer diameter, and a mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
55*86 - Cylindrical Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 55*86 |
| Brand | CHG® |
| Product Type | Cylindrical Roller |
| Dimensions | |
| Roller Diameter, Dw | 55 mm |
| Roller Length, Lw | 86 mm |
| Center Recess Diameter | 26 mm |
| Through-hole Diameter | - mm |
| Center Recess Depth | 0.9 mm |
| Dimensional & Geometrical Accuracy | |
| Roller Diameter Tolerance | - mm |
| Roller Length Tolerance | -0.06 to 0 mm |
| Through-hole Runout | - mm |
| End-face Runout | 0.005 mm |
| Diameter Variation Between Ends | 0.002 mm |
| Roundness | 0.0015 mm |
| Ovality | 0.002 mm |
| Surface Finish | |
| Outside Diameter Surface Roughness, Ra (µm) | 0.16 µm |
| End-face Surface Roughness, Ra (µm) | 0.25 µm |
| Chamfer Geometry | |
| Axial Chamfer | 2 mm |
| Axial Chamfer Tolerance | -0.2 to +0.2 mm |
| Radial Chamfer | 2 mm |
| Radial Chamfer Tolerance | -0.2 to +0.2 mm |
55*86 55 mm 86 mm Frequently Asked Questions about 55*86 Cylindrical Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Sourcing 55*86 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Cylindrical Rollers.
To safeguard CHG Bearing 55*86 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces ( mm x mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Standard batches of CHG Bearing 55*86 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
Yes, 100% of 55*86 Cylindrical Rollers leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
