
Images and technical specifications for item 89312.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing 89312 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.
89312 specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - IR-WS support-washer bore diameter
- 60 mm
- D - Washer outside diameter support OR - GS
- 110 mm
- d1 - IR-WS support-washer outside diameter
- 110 mm
- D1 - OR-GS housing-washer bore diameter
- 62 mm
- T - Height bearing thrust
- 30 mm
- Dw - Rolling-element diameter
- 9 mm
- Dc1 - Roller-cage bore diameter
- 60 mm
- Dc - Roller-cage outside diameter
- 110 mm
- rs - Minimum fillet radius
- 1,1 mm
- Cage assembly reference
- K89312
- Bearing inner ring WS
- WS89312
- Bearing outer ring GS
- GS89312
- Ea - Roller reference outside diameter
- 105,3 mm
- Eb - Roller reference inside diameter
- 68,9 mm
- Weight
- 1,35 kg
- Cage assembly weight
- 0,25 kg
- Bearing inner ring mass WS
- 0,55 kg
- Bearing outer ring GS mass
- 0,55 kg
PRODUCT PERFORMANCE
- Ca - Dynamic axial load rating
- 162 kN
- C0a - Static axial load rating
- 600 kN
- Cua - Axial load limit
- 73,5 kN
- N lim - Grease lubrication limiting speed
- 680 tr/min
- N lim - Oil lubrication limiting speed
- 2700 tr/min
- Tmin - Minimum operating temperature
- -20 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da min - Minimum shoulder diameter IR
- 105 mm
- Db max - Maximum shoulder diameter OR
- 69 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.

