Wholesale GQZ 7902ATR Open Type Single Row Angular Contact Bearing 15x28x7mm Light Load Micro Rotation Equipment Bearing

• 7902ATR is a slim thin-wall single row angular contact ball bearing with standard dimensions 15×28×7mm, adopting 30° contact angle design and lightweight TR polyamide resin ball-guided cage. The ultra-thin cross-section greatly reduces overall volume to fit compact miniature equipment with limited installation space. As an open-type bearing without sealing, it supports circulating oil lubrication and maintains ultra-high limiting speed with low friction and slight temperature rise during continuous operation. It can bear combined radial load and unidirectional axial load stably; when used in paired DB/DF/DT arrangement, it can also withstand bidirectional axial force. Superfinished raceways and steel balls deliver quiet vibration-free rotation, making it a core precision rotary component widely applied to high-speed miniature precision machinery.

*Send inquiry to get full technical datasheet and factory price of 7902ATR bearing.

• Ultra-thin wall slim structure, perfectly match narrow installation space
• 30° contact angle, balanced radial and single-direction axial bearing capacity
• TR polyamide resin cage, light weight, low friction and low heat generation
• Open design, compatible with circulating oil lubrication for ultra-high speed scenarios
• Standard clearance as default, C3 enlarged clearance optional for high-temperature working conditions
• P0 precision standard, P6 high precision grade available on customer request

1. Mini high-speed CNC spindles and small precision machining rotary components
2. Optical measuring instruments and laboratory precision testing equipment
3. Micro high-speed motors, tiny cooling fans and portable rotary devices
4. Facial massage beauty tools and cosmetic mini high-speed machinery
5. Semiconductor light-duty transmission modules and small automation equipment
6. Mini robot joint bearings and lightweight precision transmission devices

• Made of high-purity GCr15 chrome bearing steel with standardized heat treatment to guarantee high hardness and outstanding wear resistance.
• Superfinished inner/outer raceways and steel balls ensure ultra-quiet, smooth high-speed running performance.
• Strict dimensional tolerance inspection to keep consistent precision for thin-wall miniature bearings.
• Abundant spot stock of 7902ATR precision bearings, support small sample orders and fast global bulk delivery.
• Provide OEM laser marking and customized packaging services for wholesale buyers worldwide.

*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.