PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 51309 belongs to the Thrust 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.

51309 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
45 mm
D - Diameter outside
85 mm
T - Height bearing thrust
28 mm
rs - Minimum fillet radius
1 mm
Weight
0,684 kg

PRODUCT PERFORMANCE

Ca - Dynamic axial load rating
80 kN
C0a - Static axial load rating
163 kN
Cua - Axial load limit
7,35 kN
N lim - Oil lubrication limiting speed
2900 tr/min
N lim - Grease lubrication limiting speed
2000 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

Da max - Maximum shoulder diameter OR
61 mm
da min - Minimum shoulder diameter IR
69 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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