PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 6308NRC3 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.

6308NRC3 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
40 mm
D - Diameter outside
90 mm
B - Width
23 mm
a min - Minimum groove position
3,07 mm
a max - Maximum groove position
3,28 mm
rs - Minimum fillet radius
1,5 mm
rNs - Minimum fillet radius
0,5 mm
D3 - Diameter groove base maximum
86,79 mm
b min - Width groove minimum
2,7 mm
b max - Width groove maximum
3 mm
a - Distance to oil-injection hole
0,6 mm
D4 max - Diameter outside maximum of retaining ring assembly
96,5 mm
f - Retaining-ring thickness
2,46 mm
Locking-ring reference
R90
Bearing clearance
C3
Weight
0,63 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
45 kN
C0 - Basic static load rating
24 kN
Cu - Fatigue load limit
1,83 kN
f0 - Factor
13.2
N lim - Oil lubrication limiting speed
9200 tr/min
N lim - Grease lubrication limiting speed
7800 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
48 mm
Da max - Maximum shoulder diameter OR
82 mm
ra max - Maximum fillet radius shaft & housing
1,5 mm
rNa max - Maximum fillet radius on the segment side
0,5 mm
Ca min - Minimum segment position
5,43 mm
Ca max - Maximum segment position
5,74 mm
Db min - Minimum stop-ring position diameter
98 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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