PRODUCT INFORMATION

Description and selection guidance

NTN Bearing NK85/25R+1R75X85X25 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.

NK85/25R+1R75X85X25 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
75 mm
D - Diameter outside
105 mm
C - Width
25 mm
F - Lower roller diameter
85 mm
rs - Minimum fillet radius
1 mm
s - Độ lệch shaft maximum
1 mm
Outer-ring lubrication holes
Oui/Yes
k - Diameter of lubrication hole
3,5 mm
Inner-ring reference
1R75X85X25
Hole bôi trơn over inner ring
Non/No
Bearing clearance
CN
Precision class
P0
Weight
0,642 kg

PRODUCT PERFORMANCE

Cr - Dynamic load rating
70,5 kN
C0r - Static load rating
123 kN
N lim - Grease lubrication limiting speed
3100 tr/min
N lim - Oil lubrication limiting speed
4700 tr/min
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
80 mm
Da max - Maximum shoulder diameter OR
100 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.