The air conditioner compressor bearing is a precision-engineered component critical for the smooth and efficient operation of HVAC systems. Designed to withstand high rotational speeds and continuous operation, these bearings support the compressor shaft while minimizing friction and vibration. They are typically constructed from high-grade steel or ceramic materials with advanced lubrication systems to endure extreme temperature fluctuations. Special seals protect against refrigerant and moisture ingress, ensuring long-term reliability. Common in both automotive and residential AC units, these bearings directly impact system performance, energy efficiency, and noise levels. Proper maintenance prevents premature failure, which can lead to compressor seizure or reduced cooling capacity. High-quality bearings contribute to quieter operation and extended compressor lifespan in demanding thermal environments.
| NO | Basic Dimensions mm | ||||||
| Model | Model | Remark | |||||
| d | D | B | C | KST | NACHI | ||
| 1 | 30 | 47 | 18 | 18 | 30BD4718DU | / | Mazda 83A693A KOYO |
| 2 | 30 | 47 | 21 | 18 | 83A693 | 30BG04SA8G-2DS | Mazda 83A693 KOYO |
| 3 | 30 | 47 | 22 | 22 | 30BD4722DU | 30BG4S13-2DST2 | TOYOTA |
| 4 | 30 | 52 | 20 | 20 | 30BD5220DU | 101.007 | TOYOTA 101.007 |
| 5 | 30 | 52 | 22 | 22 | 30BD5222DUUM6 | 30BGS10G-2DST2 | Ford Honda HONGDA TOYOTA |
| 6 | 30 | 55 | 23 | 23 | 30BD40DU | 30BG05S5G-2DS | Ford BLUEBIRD |
| 7 | 30 | 62 | 27 | 27 | W5206 | 30BGS1-2NSL | Chrysler |
| 8 | 32 | 47 | 18 | 18 | 32BD4718DUK | 32BG04S3G | Mazda 96BEARING CHANGAN |
| 9 | 32 | 52 | 20 | 18 | 2TS2-DF0676H | / | BENZ 560 |
| 10 | 32 | 55 | 23 | 23 | 32BD45DU | 32BG05S1-2DST | MITSU MAZDA 959 XIALI |
| 11 | 35 | 48 | 20 | 20 | 35BD4820DUM6 | / | TOYOTA |
| 12 | 35 | 50 | 20 | 20 | 35BD5020DU | 35BGS5S07G-2DS7 | MITSU 706/ |
| 13 | 35 | 52 | 12 | 12 | 35BD5212DU | 35BD5212DU | |
| 14 | 35 | 52 | 20 | 20 | 35BD5220DU | 101.011 | TOYOTA PASSAT |
| 15 | 35 | 52 | 22 | 22 | 35BD5222DFX7 | 35BD5222DFX7 | PASSAT |
| 16 | 35 | 52 | 23 | 23 | 35BD5223DU | 35DG05S6G | TOYOTA |
| 17 | 35 | 55 | 20 | 20 | 35BD219DU | 35BG05S10G-2DST2 | TOYOTA JD CHERY 83694, 507 ,GM505 |
| 18 | 35 | 62 | 21 | 21 | 35BD6221DU | 35BG06G-2DS | |
| 19 | 35 | 62 | 24 | 24 | 35BD6224DV | DF0789 | AUDI A6 V6 |
| 20 | 35 | 62 | 28 | 28 | 35BD210DDV | / | |
| 21 | 38 | 54 | 17 | 17 | 38BD5417DU | 38BG05S2G-2DS | DAEWOO/SUZUKI |
| 22 | 38 | 62 | 24 | 24 | 101.008 | 101.008 | TOYOTA |
| 23 | 40 | 55 | 24 | 24 | 40BD5524DU | 40BGS40G | AUDI 100 |
| 24 | 40 | 57 | 24 | 24 | 40BD45DU | / | NISSAN SANTANA |
| 25 | 40 | 57 | 24 | 20 | 40BD49 | 40BG05S2G-2DS | AUDI 100 |
| 26 | 40 | 57 | 24 | 24 | 40BD219V | 40BG05S1DS | MITSU SANTANA |
| 27 | 40 | 62 | 20.6 | 20.6 | 40BD49DUK8A | 6557684/6559496 | BUICK |
| 28 | 40 | 62 | 24 | 20.6 | 40BD49AWT12DDU | 40BGS12G-2DS | TOYOTA FORD AUDI 80 |
| 29 | 40 | 62 | 24 | 24 | 40BD219DU | 40BGS35G-2DST | CHRYSLER FORD MAZDA 508 |
| 30 | 40 | 66 | 24 | 24 | 40BD6624DU | 40BGS39G-2DST | MITSU HYUNDAI |
| 31 | 40 | 68 | 30 | 30 | 40BD6830DUK | / | /32C BUS |
| 32 | 45 | 68 | 20 | 20 | DF0957 | / | |
| 33 | 45 | 68 | 20 | 20 | DF0954 | ||
| 34 | 45 | 75 | 32 | 32 | 45BD7532DU | 45BG07S5G-2DST | 30C BUS |
| 35 | 50 | 90 | 30 | 30 | 5210-2RS | BUS | |
| 36 | 75 | 130 | 50 | 50 | 75BG02GS | 75BG02GS | BUS |
| 37 | 30 | 47 | 12 | 30BD4712DU | |||
| 38 | 30 | 47 | 20 | 30BD4720DU | |||
| 39 | 90 | 50 | 20 | NUP210E | BUS | ||
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