6215 ZNR NSK Ball Bearing 75x130x25 with Shield and Snap Ring

Main Description

The 6215 ZNR NSK ball bearing 75x130x25 is a deep groove ball bearing with a metal shield on one side and an integrated snap ring system, designed for reliable operation, contamination protection, and secure axial positioning in industrial environments.

Within the deep groove ball bearings 62xx series, the 6215 ZNR NSK model is optimized for higher load applications while maintaining good speed performance. The Z shielding protects the bearing from external contaminants, while the NR configuration ensures quick and precise axial fixation in the housing. This combination is especially valuable in machinery where durability, ease of assembly, and reduced maintenance are required.

The 75x130x25 size makes this bearing suitable for larger shafts and more demanding industrial systems, where stability and load capacity are critical.

Construction and Design

The 6215 ZNR NSK bearing is engineered for robust performance under demanding conditions.

Key design features:

• single-row deep groove ball bearing
• metal shield on one side (Z)
• precision groove in the outer ring
• retaining ring included for axial positioning
• high-grade bearing steel for durability
• steel cage for stable operation

The shield helps retain lubrication and limits the ingress of contaminants, extending service life.

Industrial Applications

The 6215 ZNR NSK bearing is widely used in heavy-duty and medium-duty industrial applications.

Typical applications include:

• large electric motors
• industrial gearboxes and transmissions
• pumps and compressors
• conveyor systems
• heavy machinery and processing equipment

The snap ring allows for fast mounting and ensures the bearing remains securely positioned within the housing.

Technical Parameters

• type: deep groove ball bearing
• series: 62xx
• model: 6215 ZNR NSK
• inner diameter: 75 mm
• outer diameter: 130 mm
• width: 25 mm
• design: shielded on one side (Z)
• feature: groove and retaining ring (NR)
• material: bearing steel
• cage: steel
• operating characteristics: medium to high speed, high load capacity

Operational Advantages

The 6215 ZNR NSK bearing offers key advantages:

• protection against contaminants on one side
• integrated axial locking with snap ring
• reduced need for additional mounting components
• high durability under load
• efficient installation and maintenance

This makes it a reliable choice for industrial systems requiring long service life and consistent performance.

FAQ

What does ZNR mean in 6215 ZNR NSK?
Z indicates a metal shield on one side, while NR means groove and retaining ring included.

Is this bearing suitable for heavy-duty applications?
Yes, it is designed for higher load capacity within the 62xx series.

Does it include the snap ring?
Yes, ZNR versions include the retaining ring.

Can it be used in contaminated environments?
Yes, the shield provides basic protection against dust and particles.

Where is this bearing typically used?
In motors, gearboxes, pumps, and industrial machinery.