903249/903210 Imperial Tapered Roller Bearing 44.45x95.25x30.958mm

Precision Raceway Contours: Crowned raceway profile minimizes stress concentration at roller edges under extreme loading conditions.
Separable Design: Cone and cup can be mounted independently, simplifying installation, inspection, and end-play adjustments.
Thermal Stability: Advanced heat treatment ensures dimensional stability across demanding operating temperature ranges.
Strict Standard Compliance: Meets ISO and ABMA imperial tolerances for seamless drop-in fitment.

Technical Data

Technical Parameter	Metric Value
Inner Bore Diameter (d)	44.450 mm
Outer Diameter (D)	95.250 mm
Total Width (T)	30.958 mm
Precision Standard	ABEC-1 / ISO P0

Product Specifications

Specification	Details
Item Type	Imperial Tapered Roller Bearing (Single Row)
Model Number	903249/903210 (Cone: 903249 / Cup: 903210)
Material	Premium GCr15 High-Carbon Chrome Steel
Cage Design	Heavy-Gauge Stamped Steel
Load Handling	Simultaneous Heavy Radial & Uni-Directional Thrust

Product Introduction

The 903249/903210 is a heavy-duty imperial single-row tapered roller bearing engineered to handle significant combined radial and thrust loads in constrained industrial spaces. Consisting of the 903249 inner cone assembly and the 903210 outer cup, it features a 44.45 mm (1.75 inch) bore, a 95.25 mm (3.75 inch) outer diameter, and a total width of 30.958 mm. Manufactured from high-purity GCr15 chrome steel with precision-ground raceways, this bearing offers maximum structural stiffness, reduced operating friction, and exceptional fatigue resistance for global B2B industrial component distributors and equipment rebuilders.

Product Features

Applications

Industrial reduction gearboxes, speed increasers, and drive shafts.
Heavy agricultural machinery, tractors, and processing equipment.
Construction equipment drivetrains and wheel assembly hubs.

FAQ

Q: What are the exact inch dimensions for the 903249/903210?A: In inches, the bore is 1.750 in (44.45 mm), outer diameter is 3.750 in (95.25 mm), and total width is 1.2188 in (30.958 mm).
Q: Can this set be customized with special internal clearance?A: Yes, we provide custom radial and axial internal clearance pre-sets upon customer request.

OEM & Custom Service

Complete B2B OEM support including private label laser etching, custom anti-rust coating choices, and customized inner/outer carton packaging for regional brand distribution.

Packing & Delivery

Coated with high-grade anti-rust oil, wrapped in sealed VCI anti-corrosion barrier bags, packaged in individual box units, and secured on fumigated export pallets.