Ujk Double Row Ball Bearings 5205 25X52X18mm Ball Bearings UK - High Radial Capacity
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| Customization: | Available |
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| Hardness: | HRC60--62 |
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Basic Info.
- Model NO.
- 5205 25X52X18mm
- Cage
- Steel Nylon Brass
- Material
- Chrome Steel Gcr15
- Service
- OEM
- Grease
- Sheel Great Wall
- Precision
- P0 P6 P5
- Package
- Industry or Single Box
- Transport Package
- Industry or Single Box
- Specification
- Standard
- Trademark
- UJK
- Origin
- China
- HS Code
- 84821020
- Production Capacity
- 100000
Packaging & Delivery
- Package Size
- 10.00cm * 25.00cm * 13.00cm
- Package Gross Weight
- 0.200kg
Product Description
UJK Double-Row Angular Contact Ball Bearings: Precision & Rigidity for Demanding Applications
UJK Double-Row Angular Contact Ball Bearings deliver superior axial rigidity and bidirectional load capacity in a single, compact unit. Engineered to replace paired single-row bearings, they simplify installation while providing exceptional accuracy for high-performance applications requiring precise control over combined radial and axial loads, moments, and misalignment.
Key Advantages:
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Bidirectional Axial Load Capacity
Handles significant axial loads in both directions without additional mounting configurations. -
High Rigidity & Moment Resistance
Double-row design resists tilting moments and shaft deflection, critical for spindle accuracy. -
Space Optimization
Compact axial space vs. two single-row bearings (±30% reduction). -
Simplified Installation
Pre-adjusted internal clearance/preload - no complex pairing required. -
Precision Performance
ABEC P5/P4 tolerance options ensure low vibration and high running accuracy. -
High-Speed Capability
Optimized cage designs (polyamide, brass) enable stable operation at elevated RPMs.
Design Types:
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O-Type (Back-to-Back): Maximizes moment rigidity (best for gearboxes, pumps).
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X-Type (Face-to-Face): Accommodates higher misalignment (ideal for flexible shafts).
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Tandem (DT): Extreme unidirectional axial load capacity (e.g., vertical spindles).
UJK Double-Row Angular Contact Ball Bearing Series & Specifications
(Standard Metric Series | Contact Angle: 25° or 40°)
| Series | Bore (d) | OD (D) | Width (B) | Dynamic Load (C) | Static Load (C) | Contact Angle | Precision Grade | Config. | |
|---|---|---|---|---|---|---|---|---|---|
| 3200 | 10-150 mm | 30-210 mm | 14-40 mm | 12-220 kN | 6.5-235 kN | 25° | ABEC P5 / P4 | O / X | |
| 3300 | 15-200 mm | 35-310 mm | 17-52 mm | 25-430 kN | 15-460 kN | 40° | ABEC P5 / P4 | O / X | |
| 5200 | 15-120 mm | 35-180 mm | 12-28 mm | 10-150 kN | 5.5-160 kN | 25° | ABEC P5 | O / X | (Thin-Section) |
| 5300 | 20-100 mm | 40-150 mm | 15-30 mm | 18-95 kN | 9.5-105 kN | 25° | ABEC P5 | Tandem (DT) |
Critical Applications:
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Machine Tool Spindles (CNC lathes, grinders, milling centers)
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High-Precision Gearboxes (industrial robots, automotive transmissions)
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Pumps & Compressors (axial thrust management)
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Turbocharger Systems
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Printing Machinery
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Medical Imaging Equipment
UJK Quality Commitment:
All bearings feature:
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Premium Steel: High-carbon chromium steel (SUJ2 equivalent).
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Advanced Grinding: Super-finish raceways for low noise/heat generation.
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Rigorous Testing: 100% vibration analysis (ISO 15242-2).
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Lubrication Options: Grease-filled, oil-lubricated, or dry-contact seals.
*Note: Custom preload levels (light/medium/heavy) and sealing solutions (RS1/RS2, 2RS) available upon request.*
Why Choose UJK?
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Reduced Downtime: Precision-matched components extend service life.
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Energy Efficiency: Low friction design lowers operating temperatures.
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Global Compliance: Meets ISO 15, DIN 628, and ANSI/ABMA standards.
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Technical Support: Application engineering services for optimal bearing selection.
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