PSL611-312 Heavy Industrial Tapered Roller Bearing

Large-Bore Compact Profile: Accommodates large 228.6mm shafts while minimizing total radial housing envelope size.
High Combined Load Handling: Tapered roller geometry efficiently supports simultaneous radial and uni-directional axial forces.
Separable Cup & Cone Structure: Cone (inner ring assembly) and cup (outer ring) mount independently for easier assembly.
Heat Treated Core: Deep case-hardening prevents surface spalling and withstands shock loads in severe-duty environments.

Technical Data

Technical Parameter	Metric Value
Inner Bore Diameter (d)	228.600 mm
Outer Diameter (D)	295.275 mm
Total Width (T)	33.338 mm
Precision Standard	ISO P0 / ABEC-1

Product Specifications

Specification	Details
Item Type	Imperial Thin-Section Tapered Roller Bearing
Model Number	PSL611-312
Bearing Design	Single Row Tapered
Material	Vacuum-Degassed GCr15 Chrome Steel
Cage Material	Stamped or Machined Steel Cage

Product Introduction

The PSL611-312 is a large-bore, thin-section tapered roller bearing engineered for heavy industrial power transmission systems. Featuring precision imperial dimensions of 228.6 x 295.275 x 33.338 mm (9-inch inner bore), this bearing provides high radial and axial thrust capacity in a compact radial profile. Manufactured from high-purity GCr15 chromium steel and utilizing a heavy-duty cage, the PSL611-312 maintains precise shaft alignment and rotational stability under severe operating conditions. It is a preferred component for B2B industrial suppliers, gearbox rebuilders, and heavy equipment manufacturers.

Applications

Industrial speed reducers, gearboxes, and power transmissions.
Heavy agricultural machinery, crushing equipment, and conveyors.
Mining drives and large hollow-shaft rotary tables.

FAQ

Q: What is the metric equivalent of the bore diameter?
A: The 228.6 mm bore diameter corresponds exactly to a standard 9.0-inch imperial shaft size.
Q: Do you supply material certificates with this model?
A: Yes, full Certificates of Analysis (COA) confirming steel chemical composition and dimensional compliance are provided upon request.

OEM & Custom Service

B2B solutions include custom radial clearances, specialized surface anti-rust treatments, laser etching, and heavy-duty wooden box export packaging.

Packing & Delivery

Coated with heavy anti-rust oil, wrapped in VCI plastic barrier bags, and bolted into custom reinforced wooden crates for maritime freight.