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Wuxi Guangqiang Bearing Trade Co.,Ltd

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China Wholesale GQZ 7902ATR Open Type Single Row Angular Contact Bearing 15x28x7mm
China Wholesale GQZ 7902ATR Open Type Single Row Angular Contact Bearing 15x28x7mm

  1. China Wholesale GQZ 7902ATR Open Type Single Row Angular Contact Bearing 15x28x7mm
  2. China Wholesale GQZ 7902ATR Open Type Single Row Angular Contact Bearing 15x28x7mm
  3. China Wholesale GQZ 7902ATR Open Type Single Row Angular Contact Bearing 15x28x7mm
  4. China Wholesale GQZ 7902ATR Open Type Single Row Angular Contact Bearing 15x28x7mm

Wholesale GQZ 7902ATR Open Type Single Row Angular Contact Bearing 15x28x7mm

  1. MOQ: 1 PCS
  2. Price: USD 10-20
  3. Get Latest Price
Material GCr15 Chrome Bearing Steel
Supply Ability 100000 Sets per month
Precision class P0/P6
Outer diameter(D) 28mm
Inner diameter(d) 15mm
Delivery Time 3-5 working days
Bearing Model 7902ATR
Payment Terms T/T,,
Width(B) 7mm
Feature Ultra-thin wall, low friction, ultra-high speed, low heat generation, bear radial & single axial load
Seals type Open
Application Mini CNC spindles, precision optical instruments, micro high-speed motors, testing equipment, beauty tools
Number of row Single Row
Packaging Details in individual packing box
Model Number 7902ATR
Certification ISO9001:2015
Brand Name GQZ /OEM
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Material GCr15 Chrome Bearing Steel Supply Ability 100000 Sets per month
Precision class P0/P6 Outer diameter(D) 28mm
Inner diameter(d) 15mm Delivery Time 3-5 working days
Bearing Model 7902ATR Payment Terms T/T,,
Width(B) 7mm Feature Ultra-thin wall, low friction, ultra-high speed, low heat generation, bear radial & single axial load
Seals type Open Application Mini CNC spindles, precision optical instruments, micro high-speed motors, testing equipment, beauty tools
Number of row Single Row Packaging Details in individual packing box
Model Number 7902ATR Certification ISO9001:2015
Brand Name GQZ /OEM Place of Origin China
High Light open type angular contact bearinglight load micro rotation bearingsingle row angular bearing 15x28x7mm
Wholesale GQZ 7902ATR Open Type Single Row Angular Contact Bearing 15x28x7mm Light Load Micro Rotation Equipment Bearing

Product Overview
  • 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.

Key Specifications
Specification Value
Bearing Model 7902ATR
Bore d 15 mm
Outer diameter D 28 mm
Width B 7 mm
Minimum chamfer r 0.3 mm
Minimum chamfer r1 0.15 mm
Contact Angle A 30°
Dynamic load Cr 4.75 kN
Static load C0r 2.53 kN
Limiting speed (Grease) 46600 r/min
Limiting speed (Oil) 56000 r/min
Approximate weight 0.016 kg
Cage TR Polyamide resin ball-guided cage
Seal Type Open without seal
Material GCr15 Chrome Bearing Steel
Precision Class P0 / P6 optional
Clearance Standard clearance, C3 optional
Main Features
  • 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
Typical Applications
  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
Why Choose GQZ Bearing
  • 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.

FAQ

Q1: Dimensions of 7902ATR?

A1: Bore 15 mm, Outer diameter 28 mm, Width 7 mm.

Q2: What does ATR stand for?

A2: 30° contact angle, TR polyamide resin ball-guided cage.

Q3: Load characteristic?

A3: Mainly bear radial load, support single-direction axial load; pair mounting for bidirectional axial load.

Q4: Lubrication method?

A4: Open structure, suitable for circulating oil lubrication to reach ultra-high speed.

Q5: Precision & clearance options?

A5: P0 standard precision, standard clearance; P6 precision and C3 clearance optional.

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

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Exporter,Trading Company

  • Year Established:

    1989

  • Total Annual:

    1000000-10000000

  • Employee Number:

    10~100

  • Ecer Certification:

    Verified Supplier

  Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad...   Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad...

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  • Wuxi Guangqiang Bearing Trade Co.,Ltd
  • No. 650 North Xingyuan Road, Beitang District, Wuxi, China.
  • https://www.ball-rollerbearing.com/

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