Skf 7309 Becby Angular Contact Ball Bearing 45mm Bore

Product Description

The SKF 7309 BECBY is a single-row angular contact ball bearing designed for applications that combine radial and axial loads. With a 40-degree contact angle, it handles thrust forces in one direction while maintaining strong radial load capacity. The bearing features a 45 mm bore diameter, 100 mm outside diameter, and 25 mm width in an open-style configuration with a pressed brass cage. Dynamic load capacity reaches 60,500 pounds and static load capacity is rated at 37,500 pounds, making it suited for demanding industrial drive and shaft applications. Licensed HVAC, industrial mechanical, and millwright trades regularly specify this bearing type for rotating equipment service.

This bearing is used in industrial rotating equipment including electric motors, pumps, compressors, gearboxes, and machine tool spindles where combined radial and axial loading is present. The 40-degree contact angle makes it well suited for applications with significant thrust loads alongside radial forces. Its single-row open construction allows for external lubrication and works in paired-bearing arrangements where back-to-back or face-to-face mounting is required. It carries an ABEC-3 (P6) dimensional tolerance rating and an ABEC-5 (P5) running accuracy rating, providing a balance of precision and durability for both general-purpose and moderate-precision drive trains.

Key Features

• 40-degree contact angle for effective combined radial and axial load handling
• 60,500 lb dynamic load capacity and 37,500 lb static load capacity
• Pressed brass cage for strength and dimensional stability at operating speeds
• Open-style design supports field lubrication and maintenance access
• ABEC-3 dimensional tolerance and ABEC-5 running accuracy for precision fitment
• Maximum rated speed of 7,500 RPM suitable for moderate- to high-speed shaft applications

Compatibility

Designed as an OEM-style replacement or direct-fit angular contact ball bearing for single-row applications requiring a 45 mm bore, 100 mm outside diameter, and 25 mm width in the 7309 BE series.

Installation Notes

Installation should be performed by a qualified mechanic or millwright following proper lockout/tagout procedures before removing any shaft or housing components. Press or hydraulic fit tools should be used to seat the bearing squarely against the bore shoulder - never strike the bearing directly with a hammer. Ensure shaft and housing tolerances meet manufacturer specifications for the intended load and speed conditions before assembly. Consult applicable machinery manufacturer documentation and relevant industry standards for lubrication type, quantity, and relubrication intervals.