PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 5311S belongs to the Double Row 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.

5311S specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
55 mm
D - Diameter outside
120 mm
B - Width
49,2 mm
a - Load application point
60,6 mm
α - Contact angle
25 °
rs - Minimum fillet radius
2 mm
Bearing clearance
CN
Precision class
P0
Weight
2,287 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
95 kN
C0 - Basic static load rating
73 kN
Cu - Fatigue load limit
4,5 kN
N lim - Oil lubrication limiting speed
5000 tr/min
N lim - Grease lubrication limiting speed
3800 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
65 mm
Da max - Maximum shoulder diameter OR
110 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.