PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 7901UCG/GNP42U3G belongs to the Precision Angular Contact Ball 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.

7901UCG/GNP42U3G specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
12 mm
D - Diameter outside
24 mm
B - Width
6 mm
d1 - Inner-ring outside diameter
16,3 mm
d2 - Diameter rib of inner ring
15,5 mm
D1 - Diameter rib/groove of outer ring
19,7 mm
D2 - Outer-ring inside diameter
21,4 mm
a - Load application point
5,4 mm
α - Contact angle
15 °
rs - Minimum fillet radius
0,3 mm
r1s - Minimum fillet radius
0,15 mm
Precision class
P42
Weight
0,01 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
3,7 kN
C0 - Basic static load rating
1,86 kN
f0 - Factor
14.7
N lim - Oil lubrication limiting speed
104100 tr/min
N lim - Grease lubrication limiting speed
65100 tr/min
Preload level
GN
Preload value
0,02 kN
Axial stiffness
20 N/µm
Radial stiffness
106,1 N/µm
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
14,5 mm
Da max - Maximum shoulder diameter OR
21,5 mm
Db max - Maximum shoulder diameter OR
22,8 mm
r1a - Maximum fillet radius
0,15 mm
ra max - Maximum fillet radius shaft & housing
0,3 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

Cat Son can compare dimensions, design and mounting conditions before quotation.