Carbon Steel Balls for Bicycle Hubs and Auto Parts

Model Number: XYB-2.381mm-7.9388mm Brand Name: XYB Key Specifications/Special Features: Many thanks for your time consulting our web pageSince 1990 XYB supplies precise balls made in different materials, including nonstandard diametersOur assortment includes bearing chrome steel balls,carbon steel balls, tungsten carbide balls, stainless steel balls, ceramic balls, ruby and sapphire balls, brass and bronze balls, tool steel balls, balls made in special alloys, plastic and glass balls, polishing and grinding media, cylindrical rollers and needles, hybrid bearings and valve ballsBall definitions:Ball gage:prescribed small amount by which the lot mean diameter should differ from nominal diameter, this amount being one of an established series of amounts
Ball gage deviation: difference between the lot mean diameter and the sum of the nominal diameter and the ball gage
Ball diameter variation: difference between the largest and the smallest actual single diameter of the ball
Case depth:distance measured radically from the surface of the ball to a point where the hardness becomes the equivalent of rc 50 this term is applicable to case hardened balls only
Deviation from/spherical form:greatest radial distance in a radial plane between a sphere circumscribed around the surface of the ball and other points on the surface of the ball
Grade:specific combination of dimensional form and surface roughness tolerance ball grade is designated by a grade number ex G100, 200
Hardness:measure of resistance to penetration of the ball surface or truncated flat of the ball by a specific indenting shape
Lot mean diameter: arithmetic mean of the mean diameter of the largest ball and that of the smallest ball in the lot
Lot: definite quantity of balls manufactured under conditions which are presumed uniform and which is considered and identified as an entity
Lot diameter variation: difference between the mean diameter of the largest ball and that of the smallest ball in the lot
Mean diameter of a ball: arithmetic mean of the largest and the smallest actual
single diameters of the ball
Nominal ball diameter: diameter value that is used for the purpose of general identification of a ball size, eg 1/4", 6mm
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Carbon steel balls:

Product features:

These balls are headed from carbon steel and their surfaces are strengthened by carburization and quenching
This is our historic product, which has been produced since the inauguration of XYB

Usage examples:

Bicycle hubs
Automotive parts (seat adjusters, stabilizer link balls)
Canister balls