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Images and technical specifications for item 7308B.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing 7308B belongs to the Angular Contact Ball Bearings family. The technical tables below show the available dimensions, ratings, speeds and mounting limits for this item.
When requesting a quotation, provide the complete item number, required quantity and operating conditions so Cat Son can verify the configuration.
7308B specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - Shaft bore diameter
- 40 mm
- D - Diameter outside
- 90 mm
- B - Width
- 23 mm
- a - Load application point
- 39 mm
- α - Contact angle
- 40 °
- rs - Minimum fillet radius
- 1,5 mm
- r1s - Minimum fillet radius
- 1 mm
- Bearing clearance
- CN
- Weight
- 0,636 kg
PRODUCT PERFORMANCE
- C - Basic dynamic load rating
- 49,5 kN
- C0 - Basic static load rating
- 30,5 kN
- Cu - Fatigue load limit
- 2,37 kN
- N lim - Oil lubrication limiting speed
- 9900 tr/min
- N lim - Grease lubrication limiting speed
- 7400 tr/min
- Tmin - Minimum operating temperature
- -40 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da min - Minimum shoulder diameter IR
- 48,5 mm
- db min - Minimum shoulder diameter IR
- 45,5 mm
- Da max - Maximum shoulder diameter OR
- 81,5 mm
- Db max - Maximum shoulder diameter OR
- 84,5 mm
- r1a - Maximum fillet radius
- 1 mm
- ra max - Maximum fillet radius shaft & housing
- 1,5 mm
NTN ITEM SUPPORT
Send the current item and operating conditions.
Cat Son can compare dimensions, design and mounting conditions before quotation.
