eMagTech 8pcs Bike Ball Bearing Retainer 7 Balls Bicycle Repair Accessories Cage for Front Wheel Bracket

Applicability: This 7 balls bearing cage is suitable for bike front wheel ball bearing bracket. Dimensions: outer diameter: 20mm, inner diameter: 12mm, ball diameter: 5mm. Material: Bicycle ball bearing is made of metal, it is recommended to use grease to lubricate the bearing to extend its service life. Function: This ball bearing retainer has 7 balls and is suitable for bicycle front axles with an inner diameter of 16-19 mm. Packaging: Each package includes 8pcs 7 balls bearing cages.