| Symbol | Value | Description |
|---|---|---|
| ≈m | 0.345 kg | Weight |
| Cr | 37500 N | Basic dynamic load rating, radial |
| C0r | 22300 N | Basic static load rating, radial |
| nG | 15000 rpm | Limiting speed |
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NTN
NTN
NTN 7306ADB Angular Contact Ball Bearing 30 × 72 × 19 mm
Angular Contact Ball Bearing
RFQ
Estimated delivery: 16 Jul 2026 (domestic stock)
In stockEstimated delivery: 16 Jul 2026 (domestic stock)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
- Category
- Angular Contact Ball Bearing
- Bore
- 30 mm
- Outer Ø
- 72 mm
- Width
- 19 mm
Overview
NTN 7306ADB Angular Contact Ball Bearing supports combined radial and one-direction axial load through a defined contact angle. It is a high-speed, high-precision choice for pumps, compressors, machine tools, and spindle-related positions where axial rigidity and rotational accuracy matter.
The inner and outer ring raceways are offset to create a contact angle. Single-row, double-row, or matched arrangements can be used to meet axial load direction, preload, and rigidity requirements.
Key features
- Supports combined radial and one-direction axial load
- High-speed and high-accuracy operation
- Preload and rigidity adjustable through matched mounting
- Suitable for precision rotating assemblies
Typical applications
- Machine tool spindles and support shafts
- Pumps and compressors
- High-speed motors
- Precision gearboxes and robot drives
Selection guidance
Select by contact angle, arrangement, preload, precision class, axial load direction, and operating speed.
| Symbol | Value | Description |
|---|---|---|
| d | 30 mm | Bore diameter |
| D | 72 mm | Outside diameter |
| B | 19 mm | Width |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -40 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
| Code | Description |
|---|---|
| CN | Radial clearance group |
Excerpt from the manufacturer's official catalog — NTN CAT.2203E — Ball and Roller Bearings
Also searched as
The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:
NTN7306ADBNTN 7306ADB
