Model：21300 Series
Number of row: Double row
Sealing type: Open
Cage: CC/CA/MA/MB/E/E1
Material：Chrome Steel Gcr15
Hardness：HRC 58-62
Precision Level：P0, P6, P5, P4
Vibration & Noise Level：Z1V1, Z2V2, Z3V3
We always take ‘technology as the basis, quality as the root’ as the core concept: the team gathers more than 10 years of industry experience in R & D and production experts, deep ploughing into the material science, precision machining and simulation tes
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