538971 Heavy-Duty Metric Tapered Roller Bearing 70x130x42mm

Extreme Load Distribution: The 42mm overall width provides a maximized contact area, significantly reducing edge stress under massive commercial payloads.
Thermal Stability: Specialized heat treatment allows the bearing to maintain structural rigidity and dimensional accuracy during prolonged high-temperature operation.
Precision Hand-Fitting: By utilizing a focused manual assembly process, we ensure the oversized rollers are perfectly matched to the raceways, eliminating micro-vibrations.
High Wear Resistance: Deep case-hardened alloy prevents subsurface fatigue and raceway spalling.

Technical Data

Technical Parameter	Metric Value
Inner Bore Diameter (d)	70.00 mm
Outer Diameter (D)	130.00 mm
Total Width (T)	42.00 mm
Precision Standard	ISO P0 / ABEC-1

Product Specifications

Specification	Details
Item Type	Metric Tapered Roller Bearing (Heavy Series)
Model Number	538971
Material	Premium GCr15 Chrome Steel
Cage Design	Heavy-Gauge Stamped Steel
Dimensions (Metric)	70.00 mm x 130.00 mm x 42.00 mm

Product Introduction

The 538971 is a highly robust metric single-row tapered roller bearing engineered specifically for heavy commercial transport and industrial power transmission. Featuring a 70 mm inner bore, a 130 mm outer diameter, and a massive 42 mm total width, this bearing offers exceptional load-carrying capacity. The wide 42mm profile allows for oversized rolling elements, distributing extreme radial and axial forces safely across the raceway. Forged from vacuum-degassed GCr15 steel, the 538971 is a critical replacement component for B2B distributors servicing heavy-duty truck fleets and industrial gear reducers.

Applications

Heavy commercial vehicle differentials, rear axles, and transmission shafts.
Industrial heavy reduction gearboxes and large-scale conveyor drives.
Agricultural and construction machinery wheel hubs.

FAQ

Q: Can we customize the internal packaging for long-term storage?
A: Yes, we provide enhanced VCI (Volatile Corrosion Inhibitor) packaging specifically designed to protect the bearing during long ocean transit and extended warehouse storage in humid climates.
Q: Is this the same dimension as SET1165?
A: Yes, the 538971 shares the exact 70x130x42mm physical dimensions and is often cross-referenced with SET1165 in aftermarket catalogs.

OEM & Custom Service

B2B customization options include bespoke laser part marking, custom clearance matching for high-heat gearboxes, and tailored private-label box designs.

Packing & Delivery

Coated with heavy-duty rust inhibitor, hermetically sealed in protective barrier bags, individually boxed in reinforced cartons, and secured onto export pallets.