Overview
The SKF 7310 BECBY is a precision single-row angular contact ball bearing engineered for high-speed and high-load industrial applications. With its 50 mm inner bore and 110 mm outer diameter, this bearing accommodates combined radial and axial loads simultaneously, making it ideal for machinery requiring both directional control and radial stability. The pressed brass cage (designated by the “Y” suffix) ensures reliable ball spacing and lubrication distribution across a wide speed range.
Key Features
- Single-row angular contact design — Raceways offset along the bearing axis to handle combined loads efficiently
- 40° contact angle — Optimized for balanced radial and axial load capacity
- Pressed brass cage — Lightweight and durable, centered on rolling elements for consistent performance
- Open design (no seals) — Suitable for clean, controlled environments; requires appropriate lubrication management
- SKF Explorer technology — Standard bearing steel with enhanced surface finish for extended bearing life
- Universally matched pair capability — The BECBY designation indicates suitability for universal matching in O and X arrangements
Technical Specifications
- Bore Diameter (Inner Diameter): 50 mm
- Outer Diameter: 110 mm
- Width (Face Width): 27 mm
- Contact Angle: 40°
- Internal Clearance: C0 (Normal/Standard)
- Cage Material: Pressed Brass, Centered on Rolling Elements
- Closure Type: Open (no shields or seals)
- Radial Dynamic Load Capacity (Cr): 74.1 kN
- Radial Static Load Capacity (C₀r): 51 kN
- Maximum Speed (rpm): 7,500 rpm
- Precision Rating: ABEC 3 (ISO Class 6 / P6)
- Operating Temperature Range: −20 °C to +150 °C
- Material: Bearing Steel with Standard Finish
- Weight: Approximately 1.13 kg (2.56 lbs)
Typical Applications
The SKF 7310 BECBY is widely used in:
- Electric motor bearings (radial and thrust support)
- Pump and compressor shafts
- Gearbox input and output shafts
- Machine tool spindles requiring precision and speed
- Industrial fan and blower assemblies
- Conveyor and drive roller assemblies
- Robotics and automation equipment
Compatibility & Replacements
Compatible With
- SKF bearing housings and pedestals designed for 50 mm bore
- Standard industrial shaft diameters matching SKF tolerance specifications
- Any machinery requiring single-row angular contact bearings in the 7300 series footprint
- Lubrication systems compatible with open, non-sealed bearing arrangements
Replaces / Drop-In Replacement For
- SKF 7310 BE — (polyamide cage variant)
- SKF 7310 BEP — (polyamide cage variant)
- SKF 7310 BECBP — (universally matched polyamide cage)
- Equivalent angular contact bearings from NTN, Koyo, Nachi, and Timken in the same bore/OD/width envelope
Works With
- ISO VG 32, VG 46, and VG 68 industrial bearing oils
- NLGI Grade 2 and Grade 3 lithium complex greases
- Standard bearing mounting and dismounting equipment
- SKF temperature and contamination monitoring systems (via compatible housing)
- Industrial machinery control systems requiring 50 mm bore angular contact support
