561904 Metric Tapered Roller Bearing

High Load Density: Optimized internal geometry ensures maximum load distribution across the roller length, preventing edge stress.
Separable Components: The cone (inner ring with roller assembly) and cup (outer ring) can be mounted independently, streamlining factory assembly lines.
Friction Reduction: Super-finished raceways significantly lower running torque and heat generation during continuous operation.
Thermal Endurance: Advanced metallurgical processing maintains dimensional stability even under high operating temperatures.

Technical Data

Technical Parameter	Metric Value
Inner Bore Diameter (d)	120.00 mm
Outer Diameter (D)	170.00 mm
Total Width (T)	29.00 mm
Precision Standard	ABEC-1 / P0

Product Specifications

Specification	Details
Item Type	Tapered Roller Bearing
Model Number	561904
Bearing Design	Single Row Tapered
Material	Premium GCr15 High-Carbon Chromium Steel
Cage Material	Heavy-Duty Stamped Steel

Product Introduction

The 561904 is a robust, metric-dimensioned single-row tapered roller bearing engineered to deliver unyielding performance in high-stress mechanical environments. Measuring 120 x 170 x 29 mm, this precise cup and cone assembly is specifically designed to manage heavy combined radial and axial loads simultaneously. Manufactured in our advanced production facilities using premium high-carbon chromium bearing steel, the 561904 features deep heat treatment for optimal wear resistance and structural thermal stability. It provides global B2B distributors and equipment manufacturers with a reliable, high-stiffness rotation solution that significantly reduces machinery downtime.

Applications

Heavy industrial speed reducers and gearboxes.
Commercial vehicle drive axles and wheel hubs.
Agricultural machinery and heavy duty conveyors.

FAQ

Q: Can the 561904 bearing handle thrust loads in both directions?
A: As a single-row tapered bearing, it handles thrust in one direction. For bidirectional axial loads, it must be paired with a second bearing in a face-to-face or back-to-back arrangement.
Q: What precision grades are available?
A: We supply standard P0 (ABEC-1) precision for general industry, with higher P6 tolerances available for specialized gear applications.

OEM & Custom Service

We provide comprehensive B2B supply chain solutions, including custom laser marking of your brand or part numbers on the outer ring, tailored internal clearance adjustments, and flexible high-volume production scheduling.

Packing & Delivery

Each bearing is fully immersed in premium rust-preventative oil, wrapped in VCI moisture-barrier paper, enclosed in a durable individual box, and secured on heat-treated wooden pallets for safe global sea or air freight.