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Images and technical specifications for item NA4838.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing NA4838 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.
NA4838 specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - Shaft bore diameter
- 190 mm
- D - Diameter outside
- 240 mm
- C - Width
- 50 mm
- F - Lower roller diameter
- 210 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
- 5,62 kg
PRODUCT PERFORMANCE
- Cr - Dynamic load rating
- 227 kN
- C0r - Static load rating
- 680 kN
- N lim - Grease lubrication limiting speed
- 1300 tr/min
- N lim - Oil lubrication limiting speed
- 1900 tr/min
- Tmin - Minimum operating temperature
- -20 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da min - Minimum shoulder diameter IR
- 198 mm
- Da max - Maximum shoulder diameter OR
- 232 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.
