NSK BD50-8 NR (50x80x24) — Double Row Deep Groove Ball Bearing with Snap Ring

Technical Description and Applications — NSK BD50-8 NR (50x80x24)

The NSK BD50-8 NR is a double row deep groove ball bearing with dimensions 50 mm bore, 80 mm outer diameter, 24 mm width. The NR designation indicates a snap ring groove and circlip, allowing fast, stable mounting in housings without additional locking elements.

Key Features & Benefits

• Dimensions: 50 x 80 x 24 mm

• Double row design: higher load capacity than single row bearings

• Snap ring (NR): secure, space-saving mounting in housings

• Deep groove construction: supports radial and limited axial loads

• Open type: no seals — enables effective lubrication and cooling

• High-grade bearing steel: ensures durability and fatigue resistance

• Optimized for demanding applications: motors, gearboxes, rotors, industrial equipment

Typical Applications

• Electric motors and drive systems

• Industrial gearboxes and transmissions

• Rotors and rotating shafts

• CNC machinery and automation systems

• Installations with limited space requiring snap ring fixation

Installation & Maintenance Tips

• Ensure shaft, housing, and bearing are clean before installation

• Use proper press-fit tools to avoid raceway or cage damage

• Utilize the snap ring groove to secure the bearing in housing

• Apply suitable lubricants (oil or grease) depending on speed and temperature

• Monitor operating conditions to maximize service life

FAQ

Q: What does NR mean in NSK BD50-8 NR?
A: NR indicates a snap ring groove with circlip on the outer ring, used for secure fixation in housings.

Q: What type of bearing is BD50-8 NR?
A: It is a double row deep groove ball bearing, offering higher radial load capacity than single row designs.

Q: What are the dimensions?
A: Bore: 50 mm, Outer Diameter: 80 mm, Width: 24 mm.

Q: Is this bearing sealed?
A: No — it is an open type, allowing direct lubrication and cooling.

Q: Where is this bearing typically used?
A: Motors, gearboxes, rotors, CNC machinery, and other industrial equipment requiring compact, secure mounting.