4pcs 30mm, 40mm Chrome Steel G10 for Ball Bearing Wheel

Key Features

• Size - 30mm, 40mm Diameter Grade G10 Precision Balls(2pcs each size in total 4pcs)
• Material - Made of Chrome Steel(AISI 52100), features with polishing smooth surface, great wear-resistant and high hardness
• Features - Wide range of applications(maintain industrial equipment or use for family DIY projects); Cost-effective(can repair existing products)
• Applications - Maintain product that uses steel balls, such as ball bearings, turntable, drawer slides, casters, door locks; DIY projects like a keychain, or adding weight for your projects, etc.
• Notice - Confirm the Ball Diameter before ordering.

Product Description

Specifications

Ball Diameter: 5/32", 1/4"Precision Grade: G25Material: Chrome SteelPackage Contents:100 x 1/4" Precision Balls100 x 5/32" Precision Balls

Descriptions

These precision chrome steel balls are hot forged from bar stock.Modern furnaces with precisely controlled atmospheres and temperatures are used for heat treating to assure uniform hardness and proper microstructure for each steel ball.Ball hardness is controlled within the 60-63 HRC range as measured on parallel flat surfaces.Bearing balls are used for semi-precision bearings, and in commercial applications such as casters, locks, and drawer slides.Other applications for steel bearing balls include drawer slides, door locks.Notice: Watch out for rust, store in a dry place. Conditions such as high humidity or prolonged time outdoors can cause rusting.