AC Compressor OEM Clutch Bearing NSK 30BD5222DUM6 A/C This is a Genuine OEM AC compressor clutch bearing. NSK This Bearing will fit many Denso compressors: 10PA15, 10PA17, 10PA20, TV12, TV14, 10S17, 10S20. Bearing Dimentions; 52x30x22 This Bearing will fit your Original (OEM) compressor. It will NOT fit after-market units.