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Images and technical specifications for item 30228U.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing 30228U belongs to the Tapered 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.
30228U specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - Shaft bore diameter
- 140 mm
- D - Diameter outside
- 250 mm
- B - Width
- 42 mm
- C - Outer-ring width
- 36 mm
- T - Overall width
- 45,75 mm
- d1 - Inner-ring outside diameter
- 189 mm
- a - Load application point
- 48,5 mm
- rs - Minimum fillet radius
- 4 mm
- r1s - Minimum fillet radius
- 3 mm
- Weight
- 8,73 kg
- ISO 355 refethreadce
- T4FB140
PRODUCT PERFORMANCE
- C - Basic dynamic load rating
- 465 kN
- C0 - Basic static load rating
- 570 kN
- Cu - Fatigue load limit
- 57 kN
- A2 - Rated-life factor
- 1
- e - Limiting value
- 0.44
- Y0 - Static axial load factor
- 0.76
- Y2 - Upper axial load factor
- 1.38
- N lim - Oil lubrication limiting speed
- 1900 tr/min
- N lim - Grease lubrication limiting speed
- 1400 tr/min
- Tmin - Minimum operating temperature
- -40 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da max - Maximum shoulder diameter IR
- 163 mm
- db min - Minimum shoulder diameter IR
- 158 mm
- Da min - Minimum shoulder diameter OR
- 219 mm
- Da max - Maximum shoulder diameter OR
- 236 mm
- Db min - Minimum shoulder diameter OR
- 237 mm
- Ca - Minimum space width
- 7 mm
- Ca - Minimum space width
- 9,5 mm
- ra max - Maximum fillet radius
- 3 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.
