6312-ZNRJ/C3
6300 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6312-ZNRJ/C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1699 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.018mm to 0
Width
31 mm
Width tolerance
-0.150mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
18412 lbf
Radial static load rating
11735 lbf
Limiting speed
5.3 X 1000 rpm
Lubrication
None
Radial internal clearance
C3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 43.71
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6312-ZNRJ/C3 Bearing Product Overview & Core Advantages
The 6312-ZNRJ/C3 is a single row deep groove ball bearing designed for high-performance industrial applications. This precision bearing excels in handling significant radial loads and moderate axial loads in one direction. A key feature is its snap ring fitted on the outer ring, which simplifies axial location within a housing, saving space and reducing assembly costs. Manufactured to ABEC 1 | ISO P0 tolerance class, it ensures reliable operation and is pre-lubricated for immediate use. Its C3 radial internal clearance makes it suitable for applications with thermal expansion or heavy interference fits.
6312-ZNRJ/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| ZNR | Snap Ring Groove and Snap Ring | Enables secure and simplified axial location of the bearing in the housing, reducing the need for complex housing designs. |
| J | Pressed Steel Cage | Provides a robust and cost-effective solution for maintaining ball position at high speeds. |
| C3 | Greater than Normal Radial Internal Clearance | Accommodates thermal expansion from high-speed operation or heavy interference fits, preventing premature failure. |
6312-ZNRJ/C3 Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The single row deep groove construction and chrome steel rings and balls provide a high radial dynamic load rating of 18,412 lbf, ensuring durability under demanding conditions.
- Simplified Assembly: The integrated snap ring (ZNR) eliminates the need for separate locating components, streamlining the design and installation process for compact machinery.
- Optimized for Challenging Fits: The C3 clearance is a critical feature for applications involving press fits or elevated operating temperatures, ensuring optimal performance and extended bearing service life.
- Shielded Protection: The bearing is shielded on one side to retain lubrication and protect against large contaminants, contributing to low maintenance requirements.
6312-ZNRJ/C3 Bearing Typical Application Areas
This bearing is ideally suited for a wide range of industrial machinery where reliable radial load support and simplified mounting are paramount. Key sectors include:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Agricultural Machinery
- Material Handling Equipment (e.g., conveyor pulleys)
- Industrial Fans and Blowers
