Manufactured by CHG Bearing, the 48684/48620D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 142.875 mm bore diameter, a 200.025 mm outer diameter, and a 87.315 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.
48684/48620D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 48684/48620D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 3 |
| Dimensions | |
| Bore Diameter (d) | 142.875 mm |
| Width (B) | 87.315 mm |
| Outer Diameter (D) | 200.025 mm |
| Bore Diameter Tolerance | -0.022 – 0 mm |
| Outside Diameter Tolerance | -0.025 – 0 mm |
| Inner Ring Chamfer | 2 min mm |
| Outer Ring Chamfer | 2 min mm |
| Inner Ring Assembly Width Tolerance | N/A mm |
| Outer Ring Assembly Width | 109 mm |
| Outer Ring Assembly Width Tolerance | -0.25 – +0.35 mm |
| Shaft Abutment Diameter | N/A mm |
| Housing Abutment Diameter | N/A mm |
| Lubrication Hole Diameter | 2 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 972 kN |
| Basic Static Load Rating C0 (kN) | 1910 kN |
| Material | |
| Mass (kg) | 32.7 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 15 mm |
| Roller Material | Bearing Steel |
48684/48620D 200.025 mm 142.875 mm Frequently Asked Questions about 48684/48620D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Built for demanding industrial environments, the 48684/48620D Double Row Tapered Roller Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
To safeguard CHG Bearing 48684/48620D against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (142.875 mm x 200.025 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 48684/48620D, 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 48684/48620D with a precision bore diameter (d) of 142.875 mm, an outside diameter (D) of 200.025 mm, and a nominal ring width (B) of 87.315 mm. This configuration yields an effective cross-sectional wall thickness of 28.6 mm and an envelope ratio (D/d) of 1.4, delivering compact rigidity for OEM machinery housings.
