Manufactured by CHG Bearing, the ABT/3806/254-2LS is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 254 mm bore diameter, a 358.775 mm outer diameter, and a 269.875 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.
ABT/3806/254-2LS - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | ABT/3806/254-2LS |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 254 mm |
| Width (B) | 269.875 mm |
| Outer Diameter (D) | 358.775 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.051 mm |
| Inner Ring Chamfer | 1.5 min mm |
| Outer Ring Chamfer | 3.3 min mm |
| Inner Ring Assembly Width Tolerance | -0.2 – +0.2 mm |
| Outer Ring Assembly Width | 269.875 mm |
| Outer Ring Assembly Width Tolerance | -0.2 – +0.2 mm |
| Shaft Abutment Diameter | 277.7 mm |
| Housing Abutment Diameter | 327.8 mm |
| Lubrication Hole Diameter | 6 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1850 kN |
| Basic Static Load Rating C0 (kN) | 4830 kN |
| Material | |
| Mass (kg) | 82.72 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel |
| Lubrication Groove Width | 12 mm |
ABT/3806/254-2LS 358.775 mm 254 mm 269.875 mm Frequently Asked Questions about ABT/3806/254-2LS Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Quality starts with raw material selection: CHG Bearing crafts ABT/3806/254-2LS inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
The Open Type engineered for ABT/3806/254-2LS 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.
To extend the trouble-free lifespan of CHG Bearing ABT/3806/254-2LS, 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.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for ABT/3806/254-2LS, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
