d - 20 mm
D - 47 mm
B - 17,7 mm
Number of teeth - 12
Do - 98,1 mm
Dk - 107,6 mm
C - 14 mm
C1 - 15,3 mm
C2 - 2 mm
Weight - 0,7 Kg
1 - DIN 8187
2 - DIN 8188
Hot number:NTN 7218 B/DB BARDEN 7234 AC/DT OKB 4453118 OKB 804906 SKF 61912-2RZ PFI 6212-2RS C3 NKE NJ221-E-M6+HJ221-E ISO NN4836 K CYSD NNU4940K/W33 SKF VKBA 1929 Andrews AT-749 Torrington H-3028x5 SKF HC71918TGP/4 NOK SB 43 52 10 NBR NOK LBHK 30 42 5.8 7.8
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