Manufactured by CHG Bearing, the 81168 is a precision Cylindrical Roller Thrust Bearings. Key dimensional parameters include a 340 mm bore diameter, a 420 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.
81168 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 81168 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Cylindrical Roller Thrust Bearing |
| Design Type | Single Direction |
| Load Direction | Axial |
| Dimensions | |
| Bore Diameter (d) | 340 mm |
| Outer Diameter (D) | 420 mm |
| Minimum Chamfer Dimension rmin | 2 mm |
| Overall Height H | 64 mm |
| Inner-Ring Land Diameter (L1 / d1) | 344 mm |
| Outer-Ring Land Diameter (L2 / D1) | 416 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 280 r/min |
| Limiting Speed – Oil-air (r/min) | 380 r/min |
| Basic Static Axial Load Rating C0a (N) | 4410 N |
| Basic Dynamic Axial Load Rating Ca (N) | 810 N |
| Material | |
| Mass (kg) | 19.5 kg |
81168 420 mm 416 mm 340 mm 344 mm Frequently Asked Questions about 81168 Cylindrical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 81168 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.
Every production batch of CHG Bearing 81168 Cylindrical Roller Thrust Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
To safeguard CHG Bearing 81168 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (340 mm x 420 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
To extend the trouble-free lifespan of CHG Bearing 81168, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
