497A/493 Imperial Tapered Roller Bearing 85.725x136.525x30.163mm

Optimized Geometry: Precisely engineered raceway profiles distribute stresses evenly, preventing edge loading under heavy mechanical strain.
Separable Design: The inner cone assembly (497A) and outer cup (493) can be mounted independently, facilitating easier maintenance and clearance adjustments.
High Wear Resistance: Advanced heat treatment processes yield a hardened surface for superior wear resistance in harsh operating environments.
Versatile Fitment: Conforms to strict imperial dimensional standards, ensuring drop-in replacement for global OE specifications.

Technical Data

Technical Parameter	Metric Value
Inner Bore Diameter (d)	85.725 mm
Outer Diameter (D)	136.525 mm
Total Width (T)	30.163 mm
Precision Standard	ABEC-1 / ISO P0

Product Specifications

Specification	Details
Item Type	Imperial Tapered Roller Bearing (Single Row)
Model Number	497A/493 (Cone: 497A / Cup: 493)
Material	Top-Tier GCr15 Bearing Steel
Cage Material	Stamped Structural Steel
Load Direction	Radial and Uni-directional Axial

Product Introduction

The 497A/493 is a precision imperial single-row tapered roller bearing designed for demanding high-load applications. Comprising the 497A inner cone assembly and the 493 outer cup, this matched set features an 85.725 mm bore and a 136.525 mm outer diameter. Manufactured from vacuum-degassed GCr15 high-carbon chromium steel, it offers exceptional durability, minimizing frictional losses while managing heavy simultaneous radial and axial loads. It is a highly sought-after component for B2B distributors servicing commercial vehicle axles, agricultural equipment, and heavy industrial gearboxes.

Applications

Commercial vehicle wheel hubs, heavy-duty trailers, and axle differentials.
Agricultural tractors, harvesters, and implement drive systems.
Industrial conveying equipment and speed reducers.

FAQ

Q: Can the 497A cone be paired with a different cup?
A: Yes, while the 493 cup is standard, the 497A cone belongs to a series that may interchange with other specific cups depending on outer housing requirements.
Q: What is the dynamic load rating of this bearing?
A: Standard dynamic load ratings meet or exceed ISO/ABMA specifications for this dimension class, ensuring long service life under continuous stress.

OEM & Custom Service

B2B clients can request customized radial internal clearances, specific grease fill types, laser etching of proprietary part numbers, and custom retail or bulk packaging.

Packing & Delivery

Bearings are coated with industrial anti-rust oil, sealed in VCI plastic bags, packed in individual branded boxes, and loaded onto export-grade wooden pallets.