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6221 - NTN

6221

Deep groove ball bearing, radial contact, pressed steel cage, open

The single row deep-groove ball bearing is the most popular bearing. It is available in a wide range of sizes with several possible options: sealing with shields or seals, presence of a retaining ring, varied clearances, several cage types, etc.

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Technical datasheet

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Specs

PRODUCT DEFINITION

d - Internal diameter 105 mm
D - External diameter 190 mm
B - Bearing/Inner ring width 36 mm
rs - Min fillet radius 2,1 mm
Radial clearance class CN
Mass 3,7 kg
Brand NTN
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PRODUCT PERFORMANCE

C - Dynamic load 147 kN
C0 - Static load 105 kN
Cu - Fatigue limit load 6,75 kN
f0 - Coefficient 14.4
Nlim - Oil lubrication limit speed 4000 tr/min
Nlim - Grease lubrication limit speed 3400 tr/min
Tmin - Min operating temperature -40 °C
Tmax - Max operating temperature 120 °C

ABUTMENT

da min - Min shoulder diameter IR 116 mm
Da max - Max shoulder diameter OR 179 mm
ra max - Max shaft & housing fillet radius 2 mm
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