PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 1209SK belongs to the Self-aligning 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.

1209SK specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
45 mm
D - Diameter outside
85 mm
B - Width
19 mm
rs - Minimum fillet radius
1,1 mm
Sleeve reference
H209X
Bearing clearance
CN
Precision class
P0
Weight
0,47 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
22 kN
C0 - Basic static load rating
7,35 kN
Cu - Fatigue load limit
0,29 kN
e - Limiting value
0.21
Y0 - Static axial load factor
3.1
Y1 - Lower axial load factor
3
Y2 - Upper axial load factor
4.7
N lim - Oil lubrication limiting speed
8500 tr/min
N lim - Grease lubrication limiting speed
7100 tr/min
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
51,5 mm
da max - Maximum shoulder diameter IR
57 mm
db - Diameter minimum for sleeve
49 mm
Ce - Minimum sleeve length
5 mm
Da max - Maximum shoulder diameter OR
78,5 mm
ra max - Maximum fillet radius shaft & housing
1 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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