7910A5TYNSULP4 Super Precision Angular Contact Ball Bearing 50x72x12mm 25 Degree Contact Angle Spindle Bearing
Price:
USD 2-8
MOQ:
1 PCS
Delivery Time:
Within 3 days
Brand:
OEM/GQZ
Product Description
7910A5TYNSULP4 Super Precision Angular Contact Ball Bearing 50x72x12mm 25 Degree Contact Angle Spindle Bearing
Product Overview
LM249747NW/10D is a heavy‑duty inch‑size TDO double‑row tapered roller bearing composed of two cones and one double cup. It is engineered to withstand large combined radial and bidirectional axial loads with excellent shock‑resistance. Optimized internal geometry ensures stable low‑friction operation and long‑term service life for continuous heavy‑load industrial working conditions. Its separable structure allows convenient installation, inspection and maintenance.
*Send your detailed requirements to get matched bearing solutions promptly.
Key Specifications
| Item | Specification |
|---|---|
| Model | 7910A5TYNSULP4 |
| Bearing Type | Single‑row Angular Contact Ball Bearing Super Precision |
| Inner Diameter d(mm) | 50 |
| Outer Diameter D(mm) | 72 |
| Width B(mm) | 12 |
| Contact Angle | 25°(A5) |
| Basic Dynamic Load Cr(kN) | 20.1 |
| Basic Static Load Cor(kN) | 14.2 |
| Limiting Speed Grease(rpm) | 16000 |
| Limiting Speed Oil‑air(rpm) | 22000 |
| Weight(kg) | 0.175 |
| Material | Chrome Bearing Steel |
| Precision Grade | P4 |
| Preload Code | UL Light Preload |
| Cage Material | TYN Polyamide Resin Cage |
| Seal Type | Open |
| Lubrication | Grease or Oil‑air Lubrication |
| Application | CNC Spindle High‑speed Machine Tool Automation Equipment |
Main Features
- 25‑degree contact angle balances high‑speed performance and axial rigidity
- P4 super precision grade guarantees excellent rotary accuracy
- UL light preload reduces vibration and improves running stability
- TYN polyamide cage delivers low friction and good heat resistance
- Universal SU design supports flexible DB DF back‑to‑face‑to‑back mounting
- Open structure fits grease or oil‑air high‑speed lubrication
Typical Applications
- CNC machine tool spindles
- High‑speed servo motors
- Precision grinding equipment
- Automated processing machinery
- High‑speed rotating test instruments
- Industrial precision robotics
Why Choose GQZ Bearing?
- 30 years professional bearing industry experience
- ISO certified strict quality inspection
- Flexible OEM & private label customization
- 3-5 days fast delivery for stocked bearings
- Full bearing series, universal interchangeable size
- Factory direct price & reliable after-sales service
FAQ
Q1: What does 7910A5TYNSULP4 stand for?
A1: 7910 is model size, A5 means 25° contact angle, TYN is polyamide resin cage, SU stands for universal matching, UL is light preload, P4 represents super precision grade.
Q2: What is the advantage of 25° contact angle?
A2: 25° contact angle balances high speed performance and axial rigidity, providing stronger axial load capacity than 15° bearings while maintaining stable high‑speed operation.
Q3: Can this bearing be used alone?
A3: It supports single use and universal paired installation, suitable for face‑to‑face or back‑to‑back combination according to equipment rigidity requirements.
Q4: What preload is UL?
A4: UL refers to light preload, which ensures high rotation accuracy with minor preload friction, ideal for high‑speed precision spindle scenarios.
Q5: What lubrication is recommended?
A5: Grease lubrication is suitable for conventional high‑speed operation, while oil‑air lubrication is preferred for continuous ultra‑high‑speed working conditions.
*Contact us anytime for technical parameter consultation & selection guidance.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Guangqiang Bearing Trade Co.,Ltd
Location
No. 650 North Xingyuan Road, Beitang District, Wuxi, China.
Contact Person
Mike Zhang