1221S - NTN Double Row Self-Aligning Ball Bearing

  • £109.05


1221S bearing reference breakdown

Below we will break down the 1221S bearing reference and provide an explanation for each section provided it can actually be broken down. We can split it into 3 parts the prefix, suffix and body of the item code.

The suffix can be found at the end of the bearing number:

Suffix

S - Pressed steel cage

The body of the bearing reference is what is left after removing the suffix and the prefix:

Body

12 - Extra Narrow Series
21 - 105mm Bore Size

d (mm) 105 D (mm) 190 B (mm) 36
rs min (mm) 2.1 e 0.18 Y1 3.6
Y2 5.5 Y0 3.7 Mass (kg) 4.52
ra max (mm) 2
Dynamic load C (kN) 75 Static load C0 (kN) 32.5 Nlim (oil) (Tr/min) 3600
Nlim (grease) (Tr/min) 3000 Min operating temperature Tmin (°C) -20 Max operating temperature Tmax (°C) 120
da min (mm) 116

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