8 Pack Bike Ball Bearing Retainer Replacement Mountain Bike Parts 38mm OD Size x 7 Balls,for Bicycle Crank

FUSHIBEARING Bike Repair Accessories SetTech Brief – Bearing seal cross-sectionAt FUSHI we manufacture and use Angular Contact Bearings (ACB) for our headsets. We use only the best manufacturing and quality control methods available.The manufacturing process begins with the rough shape of the bearing races being machined from high quality steel. Both the inside and outside of each race is then precision stone-ground to reach its final shape.Computer controlled grinding equipment is used to grind each race to exact tolerances.The races are then assembled with the balls to create the finished bearing.Caged Bike ball bearing Description :With this tool, you can replace your bike parts by your self in home.Perfect supply for bicycle enthusiasts and an essential tool for bike.Enable to replace original parts (crankshaft bearing, headsets, hubs).The diameter are measured inside and outside (it's an approximate value in mm).Item : 31/38 mm, 7 balls (rear hub) Outside diameter : 38 mm Inside diameter : 31 mm Number of balls : 7 Balls diameter : 5/32" (3.97 mm) Note:1. Apply a small amount of grease before installation。2. In order to protect the Retainer, it is normal to have a little grease on the Retainer.3.Please allow 0-1mm error due to manual measurement.

• Package Include:8 Pieces Crank Bearing 31mm ID,38mm OD, 5/32" ball size x 7 balls. Set of bearing.
• Widely usage: For bicycle crank, bike crank, lowrider bikes, beach cruiser, limos, stretch bicycles.
• Material:This ball bearing retainer made of steel, high quality, durable and high intensity.
• Application:This kind of ball bearing stainless steel ball inlaid in the retainer design,It is a bicycle parts,enable to replace original parts (crankshaft bearing, headsets, hubs).
• The manufacturing process:Start with the rough shape of a high-quality steel-processed bearing race. Then, inside and outside