PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 1311S belongs to the Self-aligning 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.

1311S specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
55 mm
D - Diameter outside
120 mm
B - Width
29 mm
rs - Minimum fillet radius
2 mm
Bearing clearance
CN
Precision class
P0
Weight
1,6 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
51,5 kN
C0 - Basic static load rating
17,9 kN
Cu - Fatigue load limit
0,4 kN
e - Limiting value
0.23
Y0 - Static axial load factor
2.8
Y1 - Lower axial load factor
2.7
Y2 - Upper axial load factor
4.2
N lim - Oil lubrication limiting speed
6300 tr/min
N lim - Grease lubrication limiting speed
5000 tr/min
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
64 mm
Da max - Maximum shoulder diameter OR
111 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.