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* The picture is for reference, the packing quantity is 1pc /lot
The common use of bearing steel steel ball: 1.grinding 2.Install a machine 3.experiment 4.Detection pipeline 5.Industrial ball etc.
Suitable for customers with high hardness and precise size requirements
Bearing steel grades: Gcr15
Hardness is around HRC 60-63
It should be noted that this material is not waterproof and rust-proof when in use.
The actual weight of each steel ball may have an error of 0.2g
reference weight
d:21mm ≈ 38g
d:21.431mm ≈ 40g
d:22mm ≈ 44g
d:22.225mm ≈ 45g
d:23mm ≈ 50g
d:23.813mm ≈ 55g
d:24mm ≈ 56g
d:24.606mm ≈ 60g
d:25mm ≈ 65g
d:25.4mm ≈ 67g