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Images and technical specifications for item N228.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing N228 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.
N228 specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - Shaft bore diameter
- 140 mm
- D - Diameter outside
- 250 mm
- B - Width
- 42 mm
- E - Upper roller diameter
- 221 mm
- F - Lower roller diameter
- 169 mm
- d1 - Diameter outside of flange IR
- 179,5 mm
- rNs - Minimum fillet radius
- 3 mm
- rs - Minimum fillet radius
- 3 mm
- Bearing clearance
- CN
- Weight
- 7,72 kg
PRODUCT PERFORMANCE
- C - Basic dynamic load rating
- 345 kN
- C0 - Basic static load rating
- 400 kN
- Cu - Fatigue load limit
- 39,5 kN
- N lim - Oil lubrication limiting speed
- 3100 tr/min
- N lim - Grease lubrication limiting speed
- 2700 tr/min
- Tmin - Minimum operating temperature
- -40 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da min - Minimum shoulder diameter IR
- 153 mm
- dc min - Diameter inner ring minimum GO
- 171 mm
- Da max - Maximum shoulder diameter OR
- 237 mm
- Db min - Diameter shoulder face minimum
- 225 mm
- ra max - Maximum fillet radius
- 2,5 mm
- r1a - Maximum fillet radius
- 2,5 mm
NTN ITEM SUPPORT
Send the current item and operating conditions.
Cat Son can compare dimensions, design and mounting conditions before quotation.
