○Improving internal parts quality, NACHI achieves lower noise level and 50% reductions in vibration. ... ○In order to maximize a lubrication flow, NACHI developed R shape pressed steel cage. ○Most of the heat ... 29418EX. 29420EX. 29422EX. 29424EX. 29426EX. 29428EX. 29430EX ..... Overseas Sales Companies.