6306 NR
6300 Series Snap Ring Bearings
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Part No.
Part No.
6306 NR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.36 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.013mm to 0
Width
19 mm
Width tolerance
-0.12mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Outside diameter of snap ring
78.6 mm
Width of snap ring
1.7 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
6654 lbf
Radial static load rating
3597 lbf
Limiting speed
13 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 8.92
/ each
In Stock
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6306 NR Bearing Product Overview & Core Advantages
The 6306 NR is a single row deep groove ball bearing designed for exceptional radial load capacity and reliable performance in demanding applications. Its key distinguishing feature is the snap ring groove and fitted snap ring on the outer ring, which provides secure axial location within the housing, simplifying assembly and reducing total design space. Manufactured with precision tolerances (P0 class) and high-grade chrome steel components, this bearing offers robust performance, high limiting speeds, and long-term operational stability.
6306 NR Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6306 | Standard bearing series designation, indicating a medium-width, deep groove radial ball bearing. |
| NR | Signifies the outer ring has a snap ring groove and a snap ring is fitted. This feature secures the bearing axially in the housing without the need for complex housing shoulders or end caps. |
6306 NR Bearing Structural Features & Performance Benefits
- Snap Ring Locating Feature: The integrated snap ring (fitted) on the outer ring provides a positive axial location, preventing bearing creep. This simplifies housing design, reduces component count, and ensures a more compact assembly.
- High Radial Load Capacity: The deep groove raceway and optimized internal geometry enable the bearing to support high radial dynamic load ratings of 6654 lbf, making it suitable for substantial radial forces.
- High-Speed Capability: With a limiting speed of 13,000 rpm and a stainless steel cage, the bearing maintains stability and low friction at high rotational velocities.
- Precision & Reliability: Manufactured to P0 tolerance class with a standard CN radial internal clearance, it ensures consistent performance and smooth operation. The open design allows for versatile lubrication options to suit specific application needs.
- Robust Material Construction: Rings and balls made from chrome steel provide high hardness and wear resistance, while the stainless steel cage offers strength and corrosion resistance.
6306 NR Bearing Typical Application Areas
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
