PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 6902LLUNR/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.

6902LLUNR/2AS specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
15 mm
D - Diameter outside
28 mm
B - Width
7 mm
a min - Minimum groove position
1,15 mm
a max - Maximum groove position
1,3 mm
rs - Minimum fillet radius
0,3 mm
rNs - Minimum fillet radius
0,3 mm
D3 - Diameter groove base maximum
26,7 mm
b min - Width groove minimum
0,95 mm
b max - Width groove maximum
1,2 mm
a - Distance to oil-injection hole
0,25 mm
D4 max - Diameter outside maximum of retaining ring assembly
30,8 mm
f - Retaining-ring thickness
0,85 mm
Locking-ring reference
R28
Bearing clearance
CN
Weight
0,016 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
4,05 kN
C0 - Basic static load rating
2 kN
Cu - Fatigue load limit
0,157 kN
f0 - Factor
14.8
N lim - Grease lubrication limiting speed
16000 tr/min
Tmin - Minimum operating temperature
-25 °C
Tmax - Maximum operating temperature
110 °C

LIMITS

da min - Minimum shoulder diameter IR
17 mm
da max - Maximum shoulder diameter IR
17,5 mm
Da max - Maximum shoulder diameter OR
26 mm
ra max - Maximum fillet radius shaft & housing
0,3 mm
rNa max - Maximum fillet radius on the segment side
0,3 mm
Ca min - Minimum segment position
2 mm
Ca max - Maximum segment position
2,15 mm
Db min - Minimum stop-ring position diameter
31,5 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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