PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 7920UCG/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.

7920UCG/GNP42U3G specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
100 mm
D - Diameter outside
140 mm
B - Width
20 mm
d1 - Inner-ring outside diameter
113,6 mm
d2 - Diameter rib of inner ring
110,5 mm
D1 - Diameter rib/groove of outer ring
126,4 mm
D2 - Outer-ring inside diameter
132,7 mm
a - Load application point
26,1 mm
α - Contact angle
15 °
rs - Minimum fillet radius
1,1 mm
r1s - Minimum fillet radius
0,6 mm
Precision class
P42
Weight
0,81 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
60 kN
C0 - Basic static load rating
61 kN
f0 - Factor
16.5
N lim - Oil lubrication limiting speed
15600 tr/min
N lim - Grease lubrication limiting speed
9800 tr/min
Preload level
GN
Preload value
0,325 kN
Axial stiffness
118,5 N/µm
Radial stiffness
680 N/µm
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
107 mm
Da max - Maximum shoulder diameter OR
133 mm
Db max - Maximum shoulder diameter OR
135,5 mm
r1a - Maximum fillet radius
0,6 mm
ra max - Maximum fillet radius shaft & housing
1 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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