Manufactured by CHG Bearing, the 50*81.26 is a precision Tapered 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.
50*81.26 - Tapered Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 50*81.26 |
| Brand | CHG® |
| Product Type | Tapered Roller |
| Taper Angle | 1°0′40″ |
| Dimensions | |
| Roller Length, Lw | 81.26 mm |
| Center Recess Diameter | 28 mm |
| Through-hole Diameter | - mm |
| Center Recess Depth | 1.5 mm |
| Large-end Diameter, Dw | 50 mm |
| Spherical End Radius, SR | 1204 mm |
| Through-hole Chamfer | - mm |
| Large-end Diameter Tolerance | -0.015 to +0.015 mm |
| Through-hole Coaxiality | - mm |
| Rolling Surface Roughness, Ra (µm) | 0.16 |
| Axial Chamfer — Large End | 1.5 mm |
| Axial Chamfer Tolerance — Large End | 0 to +0.5 mm |
| Radial Chamfer — Large End | 1.5 mm |
| Radial Chamfer Tolerance — Large End | 0 to +0.5 mm |
| Axial Chamfer — Small End | 1.5 mm |
| Axial Chamfer Tolerance — Small End | 0 to +0.5 mm |
| Radial Chamfer — Small End | 1.5 mm |
| Radial Chamfer Tolerance — Small End | 0 to +0.5 mm |
| Performance | |
| Spherical End Surface Roughness, Ra (µm) | 0.2 µm |
| Dimensional & Geometrical Accuracy | |
| Roller Length Tolerance | -0.3 to 0 mm |
| End-face Runout | - mm |
| Diameter Variation Between Ends | ±0.003 mm |
| Roundness | 0.002 mm |
| Ovality | 0.002 mm |
50*81.26 50 mm 81.26 mm 1204 mm Frequently Asked Questions about 50*81.26 Tapered Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Beyond standard alloy steel, CHG Bearing can customize the 50*81.26 Tapered Rollers using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
Standard batches of CHG Bearing 50*81.26 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.
To ensure optimum performance of CHG Bearing 50*81.26 Tapered Rollers under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the mm bore. For the mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 50*81.26, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
