PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 6921 belongs to the Deep Groove 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.

6921 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
105 mm
D - Diameter outside
145 mm
B - Width
20 mm
rs - Minimum fillet radius
1,1 mm
Bearing clearance
CN
Weight
0,816 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
47 kN
C0 - Basic static load rating
42 kN
Cu - Fatigue load limit
2,52 kN
f0 - Factor
16.5
N lim - Oil lubrication limiting speed
5100 tr/min
N lim - Grease lubrication limiting speed
4300 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
111,5 mm
Da max - Maximum shoulder diameter OR
138,5 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.