IATF 16949 CertifiedSince 2011 · Jiashan County, China
Product line · BD series
Specialized bearings for automotive air conditioning compressor clutches.
Quality system
IATF 16949:2016 certified
Searches OTT part numbers, OE numbers and SKF / FAG / KOYO / NTN / NSK / SNR cross-references.
No listed model matches . OTT also builds to OE number and drawing — send us this part number.Detailed models
Open a model for dimensions, seal, vibration grade, cross-references and compressor applications.
35BD219 A/C Compressor Clutch Bearing | 35 × 55 × 20 mm
35BD5220 A/C Compressor Clutch Bearing | 35 × 52 × 20 mm
30BD5222 A/C Compressor Bearing
35BD5222 A/C Compressor Bearing
40BD5724/20 A/C Compressor Bearing
How to read the part number
Suffix variants: /16 = asymmetric width (B≠C) · 206 = fractional width (e.g. 20.6 mm) · Cross-references in the table below link OTT models to NSK BGS / KOYO / FAG equivalents.
Full catalog
All dimensions in mm · Weight in kg
| Model | d (mm) | D (mm) | B (mm) | C (mm) | Weight (kg) | Cross-References |
|---|---|---|---|---|---|---|
| BD4622 | 15 | 46 | 22 | 22 | 0.07 | — |
| 17BD3514 | 17 | 35 | 14 | 14 | 0.05 | — |
| 17BD4724 | 17 | 47 | 24 | 24 | 0.09 | — |
| 17BD4730 | 17 | 47 | 30 | 30 | 0.11 | — |
| 25BD4716 | 25 | 47 | 16 | 16 | 0.07 | — |
| 25BD5010 | 25 | 50 | 10 | 10 | 0.05 | — |
| 30BD4518 | 30 | 45 | 18 | 18 | 0.06 | — |
| 30BD4712 | 30 | 47 | 12 | 12 | 0.08 | 30BX04S1 |
| 30BD4718 | 30 | 47 | 18 | 18 | 0.09 | 30BD219 · 83A693 30GDG |
| 30BD4721/18 | 30 | 47 | 21 | 18 | 0.09 | 83A693 |
| 30BD4523 | 30 | 45 | 23 | 23 | 0.1 | 30BG04S23G-2DL |
| 30BD4720 | 30 | 47 | 20 | 20 | 0.1 | 30BG04S21 |
| 30BD4722 | 30 | 47 | 22 | 22 | 0.11 | 30BG04S13G |
| 30BD5020 | 30 | 50 | 20 | 20 | 0.13 | — |
| 30BD5220 | 30 | 52 | 20 | 20 | 0.14 | 30BGS32G |
| 30BD5222 | 30 | 52 | 22 | 22 | 0.15 | D3052-3RR9X · 30BGS10G |
| 30BD5526 | 30 | 55 | 26 | 26 | 0.18 | D3055 |
| 30BD5523 | 30 | 55 | 23 | 23 | 0.16 | 30BD40T12DDUCG48 · 30BG05S5G-2DL |
| 30BD6224/16 | 30 | 62 | 24 | 16 | 0.13 | 30BCDS2 |
| 30BD6227 | 30 | 62 | 27 | 27 | 0.34 | 30BGS1-2NSL |
| 32BD4718 | 32 | 47 | 18 | 18 | 0.13 | 32BD4718T12DDU · RC.250.036 |
| 32BD5220/18 | 32 | 52 | 20 | 18 | 0.14 | — |
| 32BD5523 | 32 | 55 | 23 | 23 | 0.16 | 32BG05S1-2DST |
| 35BD5223 | 35 | 52 | 23 | 23 | 0.15 | — |
| 35BD4820 | 35 | 48 | 20 | 20 | 0.09 | 35BD4820 · RC.250.051 |
| 35BD5020 | 35 | 50 | 20 | 20 | 0.15 | 35BGS05S7G-2DL |
| 35BD5212 | 35 | 52 | 12 | 12 | 0.11 | 35BX5212SADST |
| 35BD5220 | 35 | 52 | 20 | 20 | 0.17 | 35BD5220DD · 35BD5220DF · 101.011 |
| 35BD5222 | 35 | 52 | 22 | 22 | 0.12 | 35BD5222 |
| 35BD5520 | 35 | 55 | 20 | 20 | 0.15 | 35BD219DUK · 35BG05S10G/15G |
| 35BD5522 | 35 | 55 | 22 | 22 | 0.16 | 35BG5222 |
| 35BD6221 | 35 | 62 | 21 | 21 | 0.18 | 35BG06G |
| 35BD6224 | 35 | 62 | 24 | 24 | 0.2 | 35BD6224T12DDUK |
| 35BD6228 | 35 | 62 | 28 | 28 | 0.25 | 35BD210 |
| 38BD5417 | 38 | 54 | — | — | 0.14 | 38BG05S2 DST2 · 38BG05S2G2NDS · 38BG05S6G |
| 40BD5524 | 40 | 55 | 24 | 24 | 0.17 | 40BGS40G |
| 40BD5724 | 40 | 57 | 24 | 24 | 0.18 | DF0882LB 37 · 40BG05S2G-2DST |
| 40BD5724/20 | 40 | 57 | 24 | 20 | 0.18 | 40BD5720WT12DDU |
| 40BD62206 | 40 | 62 | 20.62 | 20.62 | 0.18 | 40BD49V · 907257 · 40BGS8G-2DST |
| 40BD6224/206 | 40 | 62 | 24 | 20.6 | 0.18 | 40BD49AWDU5 · 40BGS12G |
| 40BD6224 | 40 | 62 | 24 | 24 | 0.19 | 40BD219 · 40BGS35G/11G |
| 40BD6424 | 40 | 64 | 24 | 24 | 0.2 | — |
| 40BD6624 | 40 | 66 | 24 | 24 | 0.23 | 40BGS39G 2DL |
| 40BD6830 | 40 | 68 | 30 | 30 | 0.38 | 40BGS0630G |
| 45BD7532 | 45 | 75 | 32 | 32 | 0.5 | 45BG07S5G-2DST |
| 50BD7220 | 50 | 72 | 20 | 20 | 0.33 | 50BG07S1 |
| 50BD90302 | 50 | 90 | 30.2 | 30.2 | 0.45 | 5210-2RS |
About this product line
OTT automotive A/C compressor clutch bearings are engineered for the demanding conditions inside air conditioning compressor clutches. These are fully sealed double-row angular contact ball bearings with special seals and high-temperature grease for reliable performance in refrigerant environments. Material: tube steel and forged steel. Seal: 2RS (NBR, ACM, Viton). Vibration: Z2V2 guaranteed. Precision: ABEC-3. Available in 20+ models from 25mm to 50mm bore diameter.
Business terms
Quality system
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Including weekends
A/C compressor clutch bearings operate in contact with refrigerant and compressor oil, requiring chemical-resistant seals and compatible grease. They also face high-speed cycling (engaging/disengaging clutch) and elevated temperatures, demanding superior fatigue resistance.
OTT offers three seal material options: NBR (Nitrile rubber, -40°C to 120°C), ACM (Acrylic rubber, -40°C to 160°C), and Viton/FKM (Fluorocarbon rubber, -28°C to 200°C). The choice depends on the refrigerant type and operating temperature range.
The model number indicates the type, bore diameter, outer diameter, and suffix code. For example: 40BD6224 means bore 40mm, outer diameter 62mm, width 24mm. The suffix indicates seal type and special configurations.
Request for quotation
Share an OE or competitor number, a drawing or target dimensions and your annual volume. Samples available for qualified projects.
