... ), with very low noise level, to be specially usable for Electrical motor of Air conditioner 608 ZZ of high precision level P5 ... -5), with very low noise level, to be specially usable for Electrical motor of Air conditioner Product Specifications:· Bearing size: d8*D22 ... · Very low noise level ≤22 dB· To be specially usable for Electrical motor of Air conditioner · Packed carefully in plastic-tube, then ...