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Images and technical specifications for item NA4840.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing NA4840 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.
NA4840 specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - Shaft bore diameter
- 200 mm
- D - Diameter outside
- 250 mm
- C - Width
- 50 mm
- F - Lower roller diameter
- 220 mm
- rs - Minimum fillet radius
- 1,5 mm
- s - Độ lệch shaft maximum
- 1,5 mm
- Outer-ring lubrication holes
- Oui/Yes
- k - Diameter of lubrication hole
- 3,5 mm
- Hole bôi trơn over inner ring
- Non/No
- Bearing clearance
- CN
- Precision class
- P0
- Weight
- 5,84 kg
PRODUCT PERFORMANCE
- Cr - Dynamic load rating
- 231 kN
- C0r - Static load rating
- 705 kN
- N lim - Grease lubrication limiting speed
- 1200 tr/min
- N lim - Oil lubrication limiting speed
- 1800 tr/min
- Tmin - Minimum operating temperature
- -20 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da min - Minimum shoulder diameter IR
- 208 mm
- Da max - Maximum shoulder diameter OR
- 242 mm
- ras max - Maximum fillet radius
- 1,5 mm
NTN ITEM SUPPORT
Send the current item and operating conditions.
Cat Son can compare dimensions, design and mounting conditions before quotation.
