PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 7910UADG/GNP42 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.

7910UADG/GNP42 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
50 mm
D - Diameter outside
72 mm
B - Width
12 mm
d1 - Inner-ring outside diameter
57,2 mm
d2 - Diameter rib of inner ring
55,3 mm
D1 - Diameter rib/groove of outer ring
64,9 mm
D2 - Outer-ring inside diameter
68,5 mm
a - Load application point
20,3 mm
α - Contact angle
25 °
rs - Minimum fillet radius
0,6 mm
r1s - Minimum fillet radius
0,3 mm
Precision class
P42
Weight
0,13 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
19,8 kN
C0 - Basic static load rating
15,8 kN
f0 - Factor
16.3
N lim - Oil lubrication limiting speed
26900 tr/min
N lim - Grease lubrication limiting speed
16600 tr/min
Preload level
GN
Preload value
0,177 kN
Axial stiffness
138,4 N/µm
Radial stiffness
293,8 N/µm
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
54,5 mm
Da max - Maximum shoulder diameter OR
67,5 mm
Db max - Maximum shoulder diameter OR
69,5 mm
r1a - Maximum fillet radius
0,3 mm
ra max - Maximum fillet radius shaft & housing
0,6 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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