Steel Deep Groove Ball Bearing 1.378in Bore 3.150in OD, Pkg Qty 8

Overview

This industrial-grade steel deep groove ball bearing is engineered to deliver reliable rotational support for demanding mechanical applications across heavy machinery and manufacturing sectors. Featuring a precise 1.378-inch bore diameter and a 3.150-inch outside diameter, the unit measures 0.827 inches in width to ensure accurate fitment within standard housing assemblies. Constructed from high-quality steel, the bearing offers exceptional durability and resistance to wear under continuous operation. Its double-shielded design effectively retains lubrication while excluding contaminants, minimizing maintenance requirements and extending service life in harsh industrial environments without compromising performance efficiency.

Key Features

Double-shielded construction prevents contamination ingress and lubricant loss High-carbon steel composition ensures superior load-bearing capacity Precision-ground raceways reduce friction and operational heat generation Optimized for high-speed rotation with minimal vibration Sealed design eliminates the need for frequent re-lubrication Robust structure withstands significant radial and axial loads Consistent performance in temperatures ranging from -40°F to 250°F

Specifications

Bore Diameter: 1.378 in Outside Diameter: 3.150 in Width: 0.827 in

Material

High-Carbon Steel Shield Type: Double Metal Shield (ZZ) Load Rating: Dynamic and Static optimized for industrial use Tolerance Class: ABEC-1 equivalent for general industrial precision Pack Quantity: 8 units per package

Applications

Electric motor shafts and pump assemblies Conveyor system rollers and pulleys Agricultural machinery gearboxes HVAC fan motors and blowers Automotive transmission components Industrial power tools and spindles Textile manufacturing equipment Food processing machinery requiring sealed bearings Performance and Reliability The integration of double metal shields provides a critical barrier against dust, dirt, and moisture, making this bearing ideal for environments where exposure to debris is common. The internal geometry is designed to distribute stress evenly across the ball elements, preventing premature fatigue failure even under fluctuating load conditions. By utilizing premium steel alloys, the component maintains dimensional stability during thermal expansion, ensuring that clearances remain within optimal ranges during extended run times. This reliability translates to reduced downtime for end-users and lower total cost of ownership over the lifecycle of the equipment. The packaging configuration of eight units per set supports efficient inventory management for maintenance teams and original equipment manufacturers alike.