7009CTRDU Duplex Angular Contact Bearing 45×75×32mm Resin Cage For High Speed Spindle Equipment GQZ

• 7009CTRDU is a factory pre-matched DU universal duplex angular contact ball bearing set, composed of two 7009C single bearings with 15° contact angle, overall size 45×75×32mm. It adopts TR phenolic resin outer ring guided cage to reduce friction and heat generation during ultra-high speed operation. DU universal matching design supports DB back-to-back / DF face-to-face installation without extra shim adjustment, with consistent light preload controlled by factory inspection. Open structure fits circulating oil lubrication for high-speed precision spindles. Superfinished raceways and steel balls deliver ultra-low vibration and high rotational accuracy, capable of bearing combined radial load and bidirectional axial load, widely used in high-end precision rotary equipment requiring stable high-speed performance.

*Send inquiry to get full technical datasheet and factory price of 7009CTRDU bearing.

• 15° small contact angle, outstanding high-speed rotation performance
• TR phenolic resin cage, light weight, low friction and low temperature rise
• DU universal duplex pair, freely matched DB/DF layout for flexible assembly
• Factory pre-adjusted light preload, uniform rigidity without secondary processing
• Open design compatible with circulating oil lubrication to reach max limiting speed
• Multiple precision grades from P0 to P4 to meet different precision equipment demands

• High-speed CNC machine tool spindles and engraving machine rotary core parts
• Precision optical measuring instruments and laboratory testing equipment
• Ultra-high speed micro motors and miniature precision rotary devices
• Medical precision treatment equipment and beauty high-speed machinery
• Semiconductor automation transmission modules and light-duty rotary parts
• Small precision gearboxes and miniature robot joint bearings

• High-purity GCr15 bearing steel with full heat treatment for stable hardness and wear resistance.
• Superfinished raceways and steel balls ensure quiet, vibration-free high-speed running.
• Strict DU pairing inspection to guarantee consistent preload and matching precision.
• Complete stock of 7009CTRDU duplex bearing sets, support sample orders and fast bulk shipment.
• OEM laser marking, customized packaging and technical installation guidance available.

*Contact our technical team to select proper contact angle and duplex arrangement for your equipment.

*Stable stock for single row angular contact bearings, support fast bulk order shipment.