PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 7018UADG/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.

7018UADG/GNP42U3G specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
90 mm
D - Diameter outside
140 mm
B - Width
24 mm
d1 - Inner-ring outside diameter
106,9 mm
d2 - Diameter rib of inner ring
103 mm
D1 - Diameter rib/groove of outer ring
123,2 mm
D2 - Outer-ring inside diameter
131 mm
a - Load application point
39 mm
α - Contact angle
25 °
rs - Minimum fillet radius
1,5 mm
r1s - Minimum fillet radius
1 mm
Precision class
P42
Weight
1,17 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
77,5 kN
C0 - Basic static load rating
69 kN
f0 - Factor
15.9
N lim - Oil lubrication limiting speed
14300 tr/min
N lim - Grease lubrication limiting speed
8800 tr/min
Preload level
GN
Preload value
0,705 kN
Axial stiffness
280,3 N/µm
Radial stiffness
600 N/µm
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
98,5 mm
Da max - Maximum shoulder diameter OR
131,5 mm
Db max - Maximum shoulder diameter OR
134,5 mm
r1a - Maximum fillet radius
1 mm
ra max - Maximum fillet radius shaft & housing
1,5 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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