Steel Deep Groove Ball Bearing 1.77 in Bore 3.94 in OD, Pkg Qty 2

Overview

This steel deep groove ball bearing is engineered for high-speed industrial applications requiring reliable radial load support and minimal maintenance. Designed with precision-machined components, the unit features a 1.77-inch bore diameter and a 3.94-inch outside diameter, with a total width of 0.98 inches to fit standard housing configurations. The C4 internal clearance specification is specifically selected to accommodate significant thermal expansion during operation, making it ideal for environments where temperature fluctuations are common. Dual metal shields effectively retain lubrication and exclude dust, debris, and other contaminants without adding significant rotational friction, ensuring consistent performance in demanding mechanical settings.

Key Features

C4 internal clearance optimized for thermal expansion in high-temperature operations Dual metal shields (2Z) provide superior contamination protection while retaining grease Hardened steel construction ensures exceptional durability under heavy radial loads Precision-ground raceways reduce vibration and noise during high-speed rotation Low-friction design minimizes energy loss and heat generation Standardized dimensions allow for easy replacement and interchangeability

Specifications

Bore Diameter: 1.77 in Outside Diameter: 3.94 in Width: 0.98 in

Material

Hardened Steel Internal Clearance Class: C4 Shield Type: Dual Metal (2Z) Load Type: Radial Package Quantity: 2 units

Applications

Electric motors and generators operating at elevated temperatures Industrial gearboxes and speed reducers Conveyor system drive rollers Agricultural machinery exposed to dusty conditions HVAC blower wheels and fans Machine tool spindles requiring precise alignment Pump assemblies handling continuous duty cycles This component serves as a critical element in rotating machinery where failure can lead to costly downtime. The combination of hardened steel materials and optimized internal geometry allows the bearing to withstand substantial stress while maintaining smooth operation over extended service intervals. The metal shielding offers a robust barrier against particulate ingress, which is essential in manufacturing plants, processing facilities, and outdoor equipment scenarios. By selecting a unit with C4 clearance, engineers can ensure that the bearing maintains optimal performance even when shaft and housing materials expand due to operational heat, preventing premature binding or seizure. The package includes two units, facilitating simultaneous replacement on dual-support shafts or providing a ready spare for critical maintenance schedules.