Selecting a bearing
Ball bearing part number selection can only be properly performed with a working knowledge of ball bearing performance expectations and requirements. Size, application, construction and operating conditions need to be taken into account before engaging in the ball bearing selection process which is described below.
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- Configuration and purpose of bearing application
- Application conditions (temperature, humidity, vibration, dust, etc.)
- Loads
- Shaft and housing dimensions and materials
- Rotation: RPM, Rotation precision, Rotation Ring
- Bearing Torque
- Noise
- Life
- Regulated substance
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Selecting Part Number
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Tolerance and Grades
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Performance Level Factors
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Handling of Ball Bearings
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Condition Table
Please use the form below for selecting a bearing part number and spec.
| Application |
|
| Dimension |
Shaft Diameter |
φ
precision(roundness
Material( |
mm (Tolerance
μm roughness |
μm)
μm)
) |
|
| Housing Bore |
φ
precision(roundness
Material( |
mm (Tolerance
μm roughness |
μm)
μm)
) |
|
| Housing Diameter |
|
| Bearing Span |
mm |
| Rotation Spec |
Rotating Ring |
□ Inner Ring Rotation □ Outer Ring Rotation |
| Operation Condition |
|
| □ Intermittent |
| □ Back and forth |
| Application Condition |
storing temperature and humidity |
|
| Application temperature and humidity |
|
| bearing temperature |
℃ |
| Load |
radial direction |
N(kgf) |
| axial direction |
N(kgf) |
(Preload) N(kgf) |
| preload method |
□ Spring preload □ Solid preload
□ Duplex face to face □ Duplex back to back |
| □ Repeat □ Vibration □ Impact |
| conditions: |
| Torque |
□ Starting Torque □ Running Torque |
mN・m(gf・cm) |
| conditions: |
| Noise |
characteristics |
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| Others |
corrosion-resistant, drug-resistant, Magnetism, Food Safety |
Bearing Cross Section
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