Manufactured by CHG Bearing, the 381996 is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 480 mm bore diameter, a 650 mm outer diameter, and a 338 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.
381996 - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 381996 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 480 mm |
| Width (B) | 338 mm |
| Outer Diameter (D) | 650 mm |
| Bore Diameter Tolerance | -0.045 – 0 mm |
| Outside Diameter Tolerance | -0.075 – 0 mm |
| Inner Ring Chamfer | 4 min mm |
| Outer Ring Chamfer | 5 min mm |
| Inner Ring Assembly Width Tolerance | -0.9 – +0.9 mm |
| Outer Ring Assembly Width | 338 mm |
| Outer Ring Assembly Width Tolerance | -0.9 – +0.9 mm |
| Shaft Abutment Diameter | 515 mm |
| Housing Abutment Diameter | 595 mm |
| Lubrication Hole Diameter | 10 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 4680 kN |
| Basic Static Load Rating C0 (kN) | 13700 kN |
| Material | |
| Mass (kg) | 312 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | Grade 45 Steel / 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 17 mm |
381996 650 mm 480 mm 338 mm Frequently Asked Questions about 381996 Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting 381996 over a 480 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Every production batch of CHG Bearing 381996 Four-Row Tapered Roller 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.
Yes, 100% of 381996 Four-Row Tapered Roller Bearings 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.
The Open Type engineered for 381996 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
