Raw Material

Wire with high-carbon chrome bearing coil (100Cr6) and carbon content of 0.95 ~ 0.98%. It has outstanding wear resistance.

Heading Machine

Process of cutting the wire according to the standard and shaping with dies to form the sphere shape

Flashing Machine / Flashing Grinding

Headed ball is processed on the grinding plate made from special cast iron with two grooves rotating at high speed. In this process, the heading impression on lateral and axial directions are removed and processed into the diameter needed for the ball.

Deoiling Machine

Removing the oil on the ball before heat treatment by rinsing with water.

Heat Treatment Machine

Ball is processed in the heat treatment furnace for quenching and tempering. Strength and durability are obtained in this process.

Grinding Machine

Ball is inserted repeatedly between the grinding plate with two grooves rotating at high pressure until the desired diameter is reached.

Tumbling Machine

Balls collide against each other to make the surface hard for improved resistance against dents, prevention of surface defect and bearing lifespan.

Tumbling process generates minus residual stress to satisfy customer requirements.

Primary lapping

Just like the grinding process, grinding plates made with different materials are used in each process until the desired diameter is reached, and the accuracy of ball’s shape is improved.

Auto Inspection Machine (Aviko/Krob)

AVIKO is an automatic machine to detect surface defects of bearing ball. It is an ECT crack inspection equipment that detects defects of 750μm(L) x 750μm(W) x 50μm(H) in size.

Secondary lapping

Microchips on the steel ball surface from lapping process are removed using ultrasound oscillator to improve cleanliness of the ball.

Ultrasonic Machine (Washing)

Microchips on the steel ball surface from lapping process are removed using ultrasound oscillator to improve cleanliness of the ball.

Auto Inspection & Packing Machine (Vision)

Vision is an automatic machine to detect defects on the surface of bearing ball, and can detect surface defect of 200㎛ or more.

Sorting Machine (Packing)

Finished products are stored until shipping.

Warehouse

Finished products are stored until shipping.