PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 7311BGC3 belongs to the 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.

7311BGC3 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
55 mm
D - Diameter outside
120 mm
B - Width
29 mm
a - Load application point
52 mm
α - Contact angle
40 °
rs - Minimum fillet radius
2 mm
r1s - Minimum fillet radius
1 mm
Bearing clearance
C3
Weight
1,42 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
87 kN
C0 - Basic static load rating
56,5 kN
Cu - Fatigue load limit
4,45 kN
N lim - Oil lubrication limiting speed
7300 tr/min
N lim - Grease lubrication limiting speed
5500 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
65 mm
db min - Minimum shoulder diameter IR
60,5 mm
Da max - Maximum shoulder diameter OR
110 mm
Db max - Maximum shoulder diameter OR
114,5 mm
r1a - Maximum fillet radius
1 mm
ra max - Maximum fillet radius shaft & housing
2 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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