7005UCDB DB Duplex Angular Contact Bearing 25×47×24mm Nylon Cage High Speed Spindle Bearing GQZ
Price:
USD 10-30
MOQ:
1 PCS
Delivery Time:
3-5 working days
Brand:
GQZ /OEM
Product Description
7005UCDB DB Duplex Angular Contact Bearing 25×47×24mm Nylon Cage High Speed Spindle Bearing GQZ
Product Overview
- 7005UCDB is a factory pre-matched DB back-to-back duplex angular contact ball bearing set, combined with two 7005UC single bearings with 15° small contact angle, overall dimension 25×47×24mm. Equipped with lightweight UC polyamide ball-guided cage, it features ultra-low friction and low temperature rise under continuous high-speed operation. DB back-to-back layout expands load center distance, greatly improving structural rigidity and anti-overturning capacity, stably bearing combined radial load and bidirectional axial load. Open structure adapts circulating oil lubriion to reach ultra-high limiting speed. All bearing pairs are inspected for consistent light preload without secondary adjustment, superfinished raceways and steel balls deliver quiet vibration-free rotation, widely used for miniature high-precision high-speed rotary equipment.
*Send inquiry to get full technical datasheet and factory price of 7005UCDB bearing.
Key Specifiions
| Specifiion | Value |
|---|---|
| Model | 7005UCDB |
| Bore d | 25 mm |
| Outer diameter D | 47 mm |
| Single bearing width B | 12 mm |
| DB back-to-back total width | 24 mm |
| Min chamfer r | 0.6 mm |
| Min chamfer r1 | 0.3 mm |
| Contact Angle C | 15° |
| Single dynamic load Cr | 9.56 kN |
| Single static load C0r | 5.20 kN |
| Duplex set dynamic load | 15.6 kN |
| Duplex set static load | 10.4 kN |
| Limiting speed (Grease) | 32500 r/min |
| Limiting speed (Oil) | 39000 r/min |
| Set weight (DB pair) | 0.16 kg |
| Cage | UC Polyamide resin ball-guided cage |
| Match Arrangement | DB Back-to-Back duplex matched set |
| Seal Type | Open without seal |
| Material | GCr15 Chrome Bearing Steel |
| Precision Class | P0 / P6 / P5 / P4 optional |
| Preload | Standard light preload factory matched |
Main Features
- 15° small contact angle, excellent ultra-high speed rotation performance
- UC nylon ball-guided cage, light weight, low friction and low heat generation
- DB back-to-back duplex pair, outstanding rigidity and anti-tilting performance
- Factory pre-adjusted light preload, uniform preload for direct installation
- Open design compatible with circulating oil lubriion for high-speed working conditions
- Multiple precision grades from P0 to P4 to meet different precision equipment demands
Typical Appliions
- Mini high-speed CNC spindles and small engraving machine rotary core parts
- Precision optical measuring instruments and laboratory testing equipment
- Micro high-speed motors and portable precision rotary devices
- Medical precision treatment equipment and beauty high-speed rotary machinery
- Semiconductor automation light-duty transmission modules
- Mini robot joint bearings and small precision gearboxes
Why Choose GQZ Bearing
- High-purity GCr15 bearing steel with complete heat treatment for stable hardness and wear resistance.
- Superfinished inner/outer raceways and steel balls ensure smooth, low-noise long-life running.
- Strict DB pairing inspection to guarantee uniform preload and consistent matching precision.
- Sufficient stock of 7005UCDB duplex bearing sets, support sample orders and fast bulk shipment.
- OEM laser marking, customized packaging and professional technical installation guidance available.
*Contact our technical team to select proper contact angle and duplex arrangement for your equipment.
FAQ
Q1: Dimensions of 7005UCDB duplex bearing?
A1: Bore 25mm, OD 47mm, DB total width 24mm.
Q2: Suffix meaning UCDB?
A2:15° contact angle, UC nylon ball-guided cage, DB back-to-back matched pair.
Q3: Preload setting?
A3: Factory pre-matched standard light preload, ready for assembly.
Q4: Lubriion mode?
A4: Open type, suitable for circulating oil lubriion for ultra-high speed.
Q5: Optional precision grades?
A5: P0 standard, P6, P5, P4 high precision available on request.
*Stable stock for single row angular contact bearings, support fast bulk order shipment.
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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