PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 7301B 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.

7301B specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
12 mm
D - Diameter outside
37 mm
B - Width
12 mm
a - Load application point
16,5 mm
α - Contact angle
40 °
rs - Minimum fillet radius
1 mm
r1s - Minimum fillet radius
0,6 mm
Bearing clearance
CN
Weight
0,045 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
11,7 kN
C0 - Basic static load rating
4,95 kN
Cu - Fatigue load limit
0,385 kN
N lim - Oil lubrication limiting speed
26000 tr/min
N lim - Grease lubrication limiting speed
19000 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
17,5 mm
db min - Minimum shoulder diameter IR
16,5 mm
Da max - Maximum shoulder diameter OR
31,5 mm
Db max - Maximum shoulder diameter OR
32,5 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.