20pcs high quality SG25 U Groove pulley wheel ball bearings 8*30*14mm Track guide roller bearing SG8RS (double row balls) ABEC-5

20pcs high quality SG25 U Groove pulley wheel ball bearings 8*30*14mm Track guide roller bearing SG8RS (double row balls) ABEC-5
sku: 32363457146
$70.00
Shipping from: China
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