PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 6980 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.

6980 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
400 mm
D - Diameter outside
540 mm
B - Width
65 mm
d1 - Inner-ring outside diameter
445,2 mm
D1 - Diameter rib/groove of outer ring
494,8 mm
rs - Minimum fillet radius
4 mm
Bearing clearance
CN
Weight
42,1 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
370 kN
C0 - Basic static load rating
535 kN
Cu - Fatigue load limit
16,4 kN
f0 - Factor
16.5
N lim - Oil lubrication limiting speed
1200 tr/min
N lim - Grease lubrication limiting speed
990 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
416 mm
da max - Maximum shoulder diameter IR
445 mm
Da max - Maximum shoulder diameter OR
524 mm
ra max - Maximum fillet radius shaft & housing
3 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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