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Images and technical specifications for item NK45/20R+1R40X45X20.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing NK45/20R+1R40X45X20 belongs to the Needle 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.
NK45/20R+1R40X45X20 specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - Shaft bore diameter
- 40 mm
- D - Diameter outside
- 55 mm
- C - Width
- 20 mm
- F - Lower roller diameter
- 45 mm
- rs - Minimum fillet radius
- 0,3 mm
- s - Độ lệch shaft maximum
- 0,5 mm
- Outer-ring lubrication holes
- Oui/Yes
- k - Diameter of lubrication hole
- 3 mm
- Inner-ring reference
- 1R40X45X20
- Hole bôi trơn over inner ring
- Non/No
- Bearing clearance
- CN
- Precision class
- P0
- Weight
- 0,143 kg
PRODUCT PERFORMANCE
- Cr - Dynamic load rating
- 28 kN
- C0r - Static load rating
- 52,5 kN
- N lim - Grease lubrication limiting speed
- 6000 tr/min
- N lim - Oil lubrication limiting speed
- 9000 tr/min
- Tmin - Minimum operating temperature
- -20 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da min - Minimum shoulder diameter IR
- 42 mm
- Da max - Maximum shoulder diameter OR
- 53 mm
- ras max - Maximum fillet radius
- 0,3 mm
NTN ITEM SUPPORT
Send the current item and operating conditions.
Cat Son can compare dimensions, design and mounting conditions before quotation.
