Manufactured by CHG Bearing, the LY-3120/P5 is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 300 mm bore diameter, a 480 mm outer diameter, and a 180 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.
LY-3120/P5 - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | LY-3120/P5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 300 mm |
| Width (B) | 180 mm |
| Outer Diameter (D) | 480 mm |
| Bore Diameter Tolerance | -0.025 – 0 mm |
| Outside Diameter Tolerance | -0.033 – 0 mm |
| Inner Ring Chamfer | 2.5 min mm |
| Outer Ring Chamfer | 5 min mm |
| Inner Ring Assembly Width Tolerance | -0.7 – +0.7 mm |
| Outer Ring Assembly Width | N/A mm |
| Outer Ring Assembly Width Tolerance | -0.7 – +0.7 mm |
| Shaft Abutment Diameter | 318 mm |
| Housing Abutment Diameter | 408 mm |
| Lubrication Hole Diameter | 7 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 2050 kN |
| Basic Static Load Rating C0 (kN) | 4590 kN |
| Material | |
| Mass (kg) | 125 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 | 14 mm |
LY-3120/P5 480 mm 300 mm 180 mm Frequently Asked Questions about LY-3120/P5 Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The Open Type engineered for LY-3120/P5 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.
The CHG Bearing LY-3120/P5 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
To extend the trouble-free lifespan of CHG Bearing LY-3120/P5, 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.
To safeguard CHG Bearing LY-3120/P5 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (300 mm x 480 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
