6307-2ZNR
6300 Series Snap Ring Bearings
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Part No.
Part No.
6307-2ZNR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
457 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
80 mm
Outside diameter tolerance
-0.013mm to 0
Width
21 mm
Width tolerance
-0.120mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
7509 lbf
Radial static load rating
4339 lbf
Limiting speed
8.5 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
Price available upon request.
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6307-2ZNR Bearing Product Overview & Core Advantages
The 6307-2ZNR is a single row deep groove ball bearing designed for exceptional performance in demanding industrial applications. This shielded bearing features an integral snap ring on its outer ring, enabling simplified axial location within a housing. Its core advantages include robust radial load capacity, reliable operation at high speeds, and a pre-lubricated, shielded design that protects against contamination, making it a durable and maintenance-efficient solution for a wide range of machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6307 | Basic bearing designation indicating a metric single row deep groove ball bearing with a 35mm bore, 80mm OD, and 21mm width. |
| 2Z | Designates non-contact shields on both sides. This provides effective protection against coarse contaminants while minimizing friction, contributing to the bearing's high limiting speed. |
| NR | Indicates the outer ring has a snap ring groove and a fitted snap ring. This feature simplifies assembly and provides secure axial location, reducing housing design complexity and cost. |
6307-2ZNR Bearing Structural Features & Performance Benefits
- Robust Load Capacity: Manufactured from chrome steel for both rings and balls, this bearing delivers a high dynamic load rating of 7509 lbf and a static load rating of 4339 lbf, ensuring reliable performance under significant radial loads.
- High-Speed Capability: The non-contact 2Z shields and precision ABEC 1 (ISO P0) tolerance class minimize friction and vibration, enabling a limiting speed of 8,500 rpm for smooth, high-speed operation.
- Simplified Installation & Axial Location: The integrated snap ring (NR) eliminates the need for complex housing shoulders or end caps, streamlining the assembly process and providing a cost-effective securing solution.
- Contamination Protection & Long Service Life: The shielded design effectively seals the bearing against dust and debris, protecting the internal components and preserving the factory-applied lubrication for extended, maintenance-free operation.
6307-2ZNR Bearing Typical Application Areas
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
