+84 28 3820 8888 
Images and technical specifications for item 81218J.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing 81218J belongs to the Cylindrical Roller Thrust 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.
81218J specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - IR-WS support-washer bore diameter
- 90 mm
- D - Washer outside diameter support OR - GS
- 135 mm
- d1 - IR-WS support-washer outside diameter
- 135 mm
- D1 - OR-GS housing-washer bore diameter
- 93 mm
- T - Height bearing thrust
- 35 mm
- Dw - Rolling-element diameter
- 14 mm
- Dc1 - Roller-cage bore diameter
- 90 mm
- Dc - Roller-cage outside diameter
- 135 mm
- rs - Minimum fillet radius
- 1,1 mm
- Cage assembly reference
- K81218J
- Bearing inner ring WS
- WS81218
- Bearing outer ring GS
- GS81218
- Ea - Roller reference outside diameter
- 126,7 mm
- Eb - Roller reference inside diameter
- 97,9 mm
- Weight
- 1,82 kg
- Cage assembly weight
- 0,54 kg
- Bearing inner ring mass WS
- 0,64 kg
- Bearing outer ring GS mass
- 0,64 kg
PRODUCT PERFORMANCE
- Ca - Dynamic axial load rating
- 213 kN
- C0a - Static axial load rating
- 680 kN
- Cua - Axial load limit
- 80 kN
- N lim - Grease lubrication limiting speed
- 530 tr/min
- N lim - Oil lubrication limiting speed
- 2100 tr/min
- Tmin - Minimum operating temperature
- -20 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da min - Minimum shoulder diameter IR
- 126 mm
- Db max - Maximum shoulder diameter OR
- 97 mm
- ras max - Maximum fillet radius
- 1 mm
NTN ITEM SUPPORT
Send the current item and operating conditions.
Cat Son can compare dimensions, design and mounting conditions before quotation.
