6309 NR
6300 Series Snap Ring Bearings
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Part No.
Part No.
6309 NR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.85 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.015mm to 0
Width
25 mm
Width tolerance
-0.12mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Outside diameter of snap ring
106.5 mm
Width of snap ring
2.46 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
12432 lbf
Radial static load rating
7081 lbf
Limiting speed
9.5 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:
$ 14.14
/ each
In Stock
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6309 NR Bearing Product Overview & Core Advantages
The 6309 NR is a single row deep groove ball bearing engineered for high-performance radial load applications. Its defining feature is the snap ring groove and fitted snap ring on the outer ring, which provides secure axial location within a housing, simplifying assembly and reducing total design space. Manufactured with precision P0 tolerance and standard CN radial internal clearance, this bearing offers reliable operation and consistent performance. Constructed from chrome steel with a stainless steel cage, it delivers excellent durability and is suitable for a wide operating temperature range from -30°C to 120°C.
Model Code Breakdown
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6309 | Standard bearing series designation indicating a medium duty, single row deep groove ball bearing with a 45mm bore. | Denotes the fundamental bearing dimensions and type. |
| NR | Snap ring groove on the outer ring with a snap ring supplied. | Enables secure axial location, eliminating the need for complex housing shoulders and reducing assembly costs. |
6309 NR Bearing Structural Features & Performance Benefits
- Snap Ring Locating Feature: The outer ring is machined with a groove and is supplied with a snap ring. This design provides a positive axial location for the bearing within the housing, which is critical for maintaining alignment and preventing creep in applications. This results in a more compact and simplified housing design.
- High Load Capacity: The deep groove raceway and robust construction enable it to handle significant radial dynamic loads (12,432 lbf) and radial static loads (7,081 lbf), making it suitable for demanding applications.
- Optimized for Speed: The lightweight stainless steel cage ensures stable operation and contributes to a high limiting speed of 9,500 rpm, suitable for a wide range of industrial speeds.
- Open Design & Material Quality: As an open bearing, it allows for the optimal application of various lubricants. The use of high-grade chrome steel for rings and balls ensures long service life and resistance to wear.
6309 NR 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
- Any application requiring a reliable radial bearing with simplified axial location.
