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product name : commutator
the scope of product application are all kinds of motors of auto, all kinds of starter motor and the household applicance.
Technical Properties and indexes
1. Tolerance of inner diameter : H8
2. Accelerated test: 25000-30000rpm
3. Maximum voltage: over 500v between sheets, over 1500v at axle center.
4. Copper: copper silver alloy.
5. Insulation material: special resin for producting commutator.
6. Concetricity: less than 0.03, section deviation : less than 0.003.