6002Z Single Row Deep Groove Ball Bearing Single Side Z Metal Dust Shield 15x32x9mm Mini Fan Small Motor Transmission Equipment
The 7201T2DB is factory pre-ground matched DB back-to-back duplex angular contact ball bearing. T2 stands for glass fiber reinforced nylon high-speed cage, standard 20° contact angle open design. DB back-to-back pairing widens the force action span, delivers outstanding bidirectional axial rigidity and strong anti-tilting capacity, specially developed for miniature high-speed spindles, precision testing instruments and small automation rotary shafts requiring high positioning stability and low heat generation.
| Model | 7201T2DB |
| Single Bearing Inner Diameter (d) | 12mm |
| Single Bearing Outer Diameter (D) | 32mm |
| Single Bearing Width (B) | 10mm |
| Duplex Set Total Assembly Width | 20mm |
| Min Fillet Radius r | 0.6mm |
| Min Fillet Radius r1 | 0.3mm |
| Contact Angle | 20° |
| Pairing Arrangement | DB back-to-back factory pre-matched duplex set |
| Cage Type | T2 glass fiber reinforced nylon cage (ball guided) |
| Structure | Open single row angular contact ball bearing duplex combination |
| Material | GCr15 high carbon chromium bearing steel |
| Single Basic Dynamic Load Cr | 10000N |
| Single Basic Static Load C0r | 4050N |
| Duplex Set Dynamic Load Rating | 16200N |
| Duplex Set Static Load Rating | 8050N |
| Grease Limiting Speed (Single Unit) | 21000rpm |
| Oil Limiting Speed (Single Unit) | 27000rpm |
| Duplex Set Approximate Net Weight | 0.076kg |
| Operating Temperature Range | -40℃ ~ +120℃ |
| Standard Preload | Medium factory pre-ground preload |
| Gear Type (if any) | None |
- T2 glass fiber nylon cage features lightweight, low rotation inertia, anti-deformation and stable lubriion under continuous ultra-high-speed running
- DB back-to-back duplex layout separates load action lines, greatly improves anti-overturn performance to restrain shaft deflection and tilting
- Integrated factory pre-matching eliminates manual pairing deviation, uniform preload force and ultra-low rotational runout
- 20° medium contact angle balances high limiting speed and reliable bidirectional radial & axial composite load bearing capacity
- Ultra-pre superfinished raceway and steel balls suppress vibration, noise and thermal deformation for precision micro machining equipment
- Multiple customizable options: P4/P5 high precision grade, ceramic hybrid steel balls, DF face-to-face pairing, double-sided dust-proof seal
- Standard metric miniature dimension, fully interchangeable with mainstream small high-speed spindle replacement bearing sets
This T2 nylon cage DB duplex precision bearing set is widely used in:
- Mini high-speed engraving & milling machine spindle rotary support assemblies
- Precision optical inspection equipment and small positioning rotary transmission shafts
- Micro high-speed motors, dental processing spindles and miniature grinding head components
- Laboratory testing equipment, tiny automation rotary positioning parts and small medical rotary devices
- 25+ years experience in T2 nylon cage pre-matched DB duplex angular contact bearing manufacturing
- Exported to many countries worldwide
- Rich OEM bulk order experience for miniature high-speed spindle bearing sets
- Strict full-process preload consistency, rotational runout and high-speed temperature rise aging inspection before shipment
- Fast professional engineer technical response within 24 hours
- Stable mass supply for long-term precision engraving machine and micro automation equipment factory cooperation
- GCr15 bearing steel raw material composition and hardness inspection
- Ultra-precision superfinishing grinding for 20° angular raceway and steel ball surfaces
- Standard quenching & tempering heat treatment control
- DB duplex pairing preload calibration test, clearance grouping and high-speed heat detection
- Independent anti-rust oil treatment and separate plastic packaging for each matched duplex set
Looking for a reliable T2 glass fiber nylon cage factory pre-matched DB back-to-back duplex precision angular contact bearing supplier?
- Fast quotation within 24 hours
- Professional engineer technical support
- Custom preload grade, ceramic ball, sealing and high precision tolerance solution suggestions
- Competitive factory wholesale price
Yes, we support OEM custom production based on pairing mode, preload force, seal and ceramic ball requirements.
Standard stock 7201T2DB duplex set: 7–12 working days
Custom ceramic ball / P4 ultra-precision products: 12–18 working days
Yes, we provide stable continuous mass supply for long-term miniature high-speed precision equipment factory cooperation.
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