6312-ZNR/C3
6300 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6312-ZNR/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)
Outside diameter of snap ring
139.7 mm
Width of snap ring
2.82 mm
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:
$ 41.52
/ each
In Stock
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6312-ZNR/C3 Bearing Product Overview & Core Advantages
The 6312-ZNR/C3 is a single row deep groove ball bearing engineered for demanding industrial applications requiring reliable radial load capacity and secure axial positioning. Its defining feature is the integral snap ring on the outer ring, which facilitates simplified housing design and prevents bearing creep in housings. Manufactured to ABEC 1 | ISO P0 tolerance standards and featuring a C3 radial internal clearance, this bearing is optimized for operational stability under moderate speeds and varying thermal conditions. The shielded design offers effective protection against contaminant ingress, enhancing service life in challenging environments.
Model Code Breakdown
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| Z | One Shield (Non-Contact) on one side | Protects against contamination while maintaining low friction and high-speed capability. |
| NR | Snap Ring Groove and Snap Ring | Enables secure axial location, simplifies housing design, and eliminates the need for complex end covers. |
| /C3 | Greater than Normal Radial Internal Clearance | Accommodates thermal expansion, ideal for applications with expected temperature fluctuations or interference fits. |
6312-ZNR/C3 Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: Built entirely from chrome steel (rings, balls, and cage), this bearing delivers a high radial dynamic load rating of 18,412 lbf and a radial static load rating of 11,735 lbf, ensuring durability under significant radial stresses.
- Axial Location & Simplified Assembly: The integrated snap ring is a key structural feature that provides positive axial location, preventing movement within the housing. This simplifies the surrounding assembly, reduces part count, and lowers overall manufacturing costs.
- Optimized for Thermal & Speed Conditions: The C3 clearance is a critical performance feature, allowing for smooth operation and preventing binding in applications where bearing temperatures are expected to rise significantly or where tight fits are used.
- Contamination Protection: The non-contact shield effectively seals the bearing from larger particulate contaminants, protecting the internal components and preserving lubricant integrity, which contributes to a long and maintenance-free service life.
6312-ZNR/C3 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring secure mounting and reliable performance. Common uses include:
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Agricultural Machinery
- Material Handling Conveyors
- Pumps and Compressors
