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Images and technical specifications for item NJ252.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing NJ252 belongs to the Cylindrical Roller 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.
NJ252 specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - Shaft bore diameter
- 260 mm
- D - Diameter outside
- 480 mm
- B - Width
- 80 mm
- E - Upper roller diameter
- 420 mm
- F - Lower roller diameter
- 320 mm
- d1 - Diameter outside of flange IR
- 340 mm
- rNs - Minimum fillet radius
- 5 mm
- rs - Minimum fillet radius
- 5 mm
- Bearing clearance
- CN
PRODUCT PERFORMANCE
- C - Basic dynamic load rating
- 1270 kN
- C0 - Basic static load rating
- 1660 kN
- Cu - Fatigue load limit
- 137 kN
- N lim - Oil lubrication limiting speed
- 1600 tr/min
- N lim - Grease lubrication limiting speed
- 1300 tr/min
- Tmin - Minimum operating temperature
- -40 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da min - Minimum shoulder diameter IR
- 280 mm
- dc min - Diameter inner ring minimum GO
- 323 mm
- Da max - Maximum shoulder diameter OR
- 460 mm
- Db min - Diameter shoulder face minimum
- 426 mm
- ra max - Maximum fillet radius
- 4 mm
- r1a - Maximum fillet radius
- 4 mm
NTN ITEM SUPPORT
Send the current item and operating conditions.
Cat Son can compare dimensions, design and mounting conditions before quotation.
