d - 105 mm

D - 190 mm

B - 36 mm

C - 36 mm

r min. - 2.1 mm

da min. - 116 mm

Da max. - 179 mm

ra max. - 2 mm

Weight - 4.37 Kg

Basic dynamic load rating (C) - 77.0 kN

Basic static load rating (C0) - 34.0 kN

(Grease) Lubrication Speed - 2900 r/min

(Oil) Lubrication Speed - 3600 r/min

Calculation factor (e) - 0.18

Calculation factor (Y0) - 3.73

Calculation factor (Y1) - 3.56

Calculation factor (Y2) - 5.51

• Model Number:1221
• Inner Diameter：105mm Outer Diameter：190mm Width：36mm
• Type：Self-Aligning Ball Bearings
• Update date：2025-12-12
• Application:Forging machine,power source,forklift truck,set bacteria instrument,scientific instruments,pneumatic,baler,boring bar boring bar,diving equipment,printing equipment,dynamic blood pressure
• Similar models:ISO 1221 KOYO 1221 AST 1221 SIGMA 1221 CX 1221K CX 1221 NKE 1221 CX 1221K+H221 ISO 1221K ISO 1221K+H221
• BEARING POWER International Trading Co.,Ltd. specialize in 1221 products，there is large inventory of KOYO 1221 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 1221 Which KOYO 1221 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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  MT-11/4				RHP	THRUST BALL BEARINGS
  F623	3	10	4	NTN	DEEP GROOVE BALL BEARINGS
  E5014NRNT	70	110	54	Nachi	CYLINDRICAL ROLLER BEARINGS
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  NNU-49/670-KMSP/5	670	900	230	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  D-36	4.3437	2.6875		CONSOLIDATED	THRUST BALL BEARINGS