4P 30406 RS 30x40x6, 17287RS 17X28X7, 16287RS 16X28X7, 24377RS 24X37X7 ABEC-7 Bicycle Bearing Thin Wall Shielding Ball Bearing

High-concerned chemical：None isCustomized：Yes Material：Bearing Steel Model Number：30406RS Origin：Mainland China Bearing Grade:：ABEC-7 Bearing Material :：Bearing Steel Bearing Sizes :：30x40x6 mm Inner Diameter :：30 mm Out Diameter :：40 mm Width :：6 mm Bearing Type :：Ball Bearing Bearing Characteristics :：Running Smooth & High Speed

High-concerned chemical: None isCustomized: Yes Material: Bearing Steel Model Number: 30406RS Origin: Mainland China Bearing Grade:: ABEC-7 Bearing Material :: Bearing Steel Bearing Sizes :: 30x40x6 mm Inner Diameter :: 30 mm Out Diameter :: 40 mm Width :: 6 mm Bearing Type :: Ball Bearing Bearing Characteristics :: Running Smooth & High Speed