PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 6903JRXLLUNR/2AS 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.

6903JRXLLUNR/2AS specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
17 mm
D - Diameter outside
30 mm
B - Width
7 mm
rs - Minimum fillet radius
0,3 mm
rNs - Minimum fillet radius
0,3 mm
D3 - Diameter groove base maximum
28,7 mm
b min - Width groove minimum
0,95 mm
b max - Width groove maximum
1,3 mm
a - Distance to oil-injection hole
0,25 mm
D4 max - Diameter outside maximum of retaining ring assembly
32,8 mm
f - Retaining-ring thickness
0,85 mm
Locking-ring reference
R30
Bearing clearance
CN
Weight
0,018 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
5,15 kN
C0 - Basic static load rating
2,58 kN
Cu - Fatigue load limit
0,202 kN
f0 - Factor
14.7
N lim - Oil lubrication limiting speed
14000 tr/min
N lim - Grease lubrication limiting speed
22000 tr/min

LIMITS

da min - Minimum shoulder diameter IR
19 mm
da max - Maximum shoulder diameter IR
20 mm
Da max - Maximum shoulder diameter OR
28 mm
ra max - Maximum fillet radius shaft & housing
0,3 mm
rNa max - Maximum fillet radius on the segment side
0,3 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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