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The CXJSD 6207 deep groove ball bearing is a standard single-row bearing with a 35 mm bore, 72 mm outside diameter, and 17 mm width. It features a dynamic load rating of 25.7 kN and a static load rating of 15.3 kN, with 9 balls measuring 11.112 mm in diameter. The 6207 bearing is available in open, ZZ, 2RZ, and 2RS configurations, with speed ratings of up to 9,800 r/min with grease lubrication and 11,000 r/min with oil lubrication. Weighing approximately 0.288 kg per piece, it is suitable for electric motors, pumps, gearboxes, fans, conveyors, and general industrial machinery.
The 6207 is a standard metric deep groove ball bearing with a 35 mm bore, 72 mm outside diameter and 17 mm width. The dimensional envelope follows the standardized 62-series, while load and speed ratings can vary by manufacturer and bearing configuration.
| Parameter | Metric | Imperial |
|---|---|---|
| Bore diameter (d) | 35 mm | 1.3780 in |
| Outside diameter (D) | 72 mm | 2.8346 in |
| Width (B) | 17 mm | 0.6693 in |
| Minimum chamfer | 1.1 mm | 0.0433 in |
| Basic dynamic load rating (C) | 25.7 kN | 5,775 lbf |
| Basic static load rating (C0) | 15.3 kN | 3,439 lbf |
| Number of balls | 9 | — |
| Ball diameter | 11.112 mm | 0.4375 in |
| Limiting speed — grease | 9,800 rpm | — |
| Limiting speed — oil | 11,000 rpm | — |
| Weight | 0.288 kg / 288 g | 0.635 lb |
| Available configurations | Open / ZZ / 2RZ / 2RS | — |
The 6207 deep groove ball bearing uses a single-row raceway design with deep grooves on the inner and outer rings. This construction allows the bearing to support radial loads and axial loads in both directions while maintaining low friction and stable rotation.
The 35 mm bore fits the shaft and provides the inner raceway for the rolling elements.
The 72 mm outside diameter fits the housing and forms the stationary outer raceway.
Nine precision steel balls with an 11.112 mm diameter transfer radial and axial loads between the raceways.
The pressed steel cage keeps the balls evenly spaced and guides them during continuous rotation.
Deep circular grooves support radial loads and moderate axial loads in both directions.
The raceway is exposed on both sides, reducing sealing drag and allowing external lubrication where required, but it needs a clean operating environment.
Metal shields help keep out dust and coarse contaminants while retaining factory grease with relatively low additional friction.
Contact rubber seals provide stronger protection against moisture, dust and contamination, making them suitable for harsher environments.
With a 35 mm bore, 72 mm outside diameter and 17 mm width, the 6207 is commonly used in rotating equipment where reliable radial support, moderate axial load capacity and low-friction operation are required.
Supports motor shafts and rotating electric machinery where low vibration and reliable high-speed operation are important.
Supports pump shafts and helps maintain smooth, low-friction rotation in water and industrial pumping equipment.
Supports rotating gearbox shafts and mechanical drives under combined radial and moderate axial loads.
Supports fan and blower shafts where stable rotation, low friction and consistent running are required.
Supports conveyor rollers and rotating components used in continuous material handling systems.
Common buyer considerations include dimensional consistency, seal configuration, clearance, noise, lubrication and batch-to-batch quality when sourcing 6207 bearings for industrial applications.
For bulk 6207 sourcing, dimensional consistency and the correct 35 × 72 × 17 mm envelope are important because the bearing needs to match the existing shaft and housing without modification.
For electric motor applications, buyers often compare standard clearance with C3 clearance because operating temperature, shaft fit and thermal expansion can affect the required internal clearance.
Seal selection can make a significant difference in dusty or humid environments. Open, ZZ, 2RZ and 2RS versions should be selected according to contamination, lubrication and operating conditions.
Watch these 6207 bearing videos to compare sealed and shielded configurations, understand the open bearing design, and see a 6207ZZC3 application example.
Answers to common questions from engineers, maintenance teams and industrial buyers evaluating 6207 deep groove ball bearings, including dimensions, configurations, C3 clearance, load ratings and operating speed.
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All three share the same basic 35 mm bore, 72 mm outside diameter and 17 mm width. The difference is the sealing or shielding configuration: an open 6207 has no shields, 6207-ZZ uses metal shields on both sides, while 6207-2RS uses rubber contact seals for stronger protection against dust and moisture.
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6207 C3 is commonly considered for electric motors and other applications where operating temperature, thermal expansion or tighter operating conditions require greater-than-normal radial internal clearance. However, C3 should be selected based on shaft fit, temperature, speed and the actual bearing application rather than automatically used for every motor.
The CXJSD 6207 has a basic dynamic load rating of 25.7 kN and a basic static load rating of 15.3 kN. Actual ratings vary between manufacturers and bearing designs, so load calculations should always use the specific manufacturer's catalog values for the exact 6207 configuration being purchased.
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Common causes include excessive or unsuitable grease, incorrect shaft or housing fits, excessive preload, insufficient internal clearance, excessive speed, overload, misalignment or contamination. Check lubrication, installation fits, C3/CN clearance, operating load and actual running speed before replacing the bearing.
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For the CXJSD 6207 specification, the reference speed limits are approximately 9,800 rpm with grease lubrication and 11,000 rpm with oil lubrication. The actual permissible speed depends on bearing configuration, lubricant, load, temperature, cage design, clearance and manufacturer, so the specific catalog value should be checked before high-speed operation.
