Inch series bearings R133ZZ R144ZZS R2ZZ R155ZZS R166ZZS R3ZZ R188ZZ R4ZZ

Ⅰ. Material:

RINGS & BALLS vacuum degassed, high carbon chromium bearing steel GCr15 is the standard material for precision bearing rings and balls. The material has uniform specification as AISL 52100(America)DIN100 Cr6(German), JISSUJ2(Japan)

These deep-groove ball bearings are suited to parts of devices that require high-speed rotation, low-friction torque and low vibration/noise in order to make such devices smaller, lighter-weight and thinner.

Ⅱ. Feature : high precision bearings have less internal friction and can work with smaller starting torque, which means a lower power consumption.

Ⅲ. Application: Hard disc drives, stepping motors, fan motors, encoders, DVD spindles, small motors, pinch rollers, etc.

Ⅳ. Specification

• A deep groove ball bearings is the must popular type of rolling-element bearing composed of an outer race ball, an inner race and a bearing cage.and the race dimensions are close to balls dimensions.
• The materials for producing ball bearing are variety including stainless steel,chrome steel and silicon nitride and more with a simpler construction comparing with other ball bearing, deep groove bearings are suitable for large quantity production
• The function of deep groove ball bearings is to reduce rotation friction.those balls between outer race and inner race help avoid two flat surfaces rotating on each other thus to achieve the purpose of lowering down friction coefficient
• Additionally, deep groove ball bearings are primarily used to support radial loads; supports both radial and axial loads is also possible
• Deep groove ball bearings can be used in wide range of applications.

1. Firstly, they can de used in industrial transmission mechanical products.
2. Miniature bearings are widely used in household appliances, toys, electric power tools, car motors and other fields. With optimal design, high reliability heat treatment, precision manufacturing processes and high-grade grease, these products perform better on reliability, vibration and noise levels than standard products making them more suitable for electric motor applications. These products can also be applied to most gearbox applications as well.
3. Thirdly, our bearing are ideal for electrical motor with good quality and excellent performance. Because of their high precision, high rotating speed, high reliability, low friction and low noise, they are widely used in areas of machine tools, measuring instruments, office machinery, household appliances, various types of electric motors, industrial automation control, etc.

Ⅴ. PACKING / Shipping

Normally we packed as below 3 methods, also we can provide package as customer requirements:

1) Tube+outer carton+pallets
2) Single box+outer carton+pallets
3) Tube package+middle box+outer carton+pallets

Ⅵ. Product Show:

If you have other questions, please feel free to contact us as below.

DAW Bearing Company Limited is a professional miniature bearing manufacturer. We are dedicated to produce and sell the Inch Series bearings in the size of 1 - 15mm Inner diameter and Outer diameter within 30mm, Inch Series bearings, Flange bearings,Stainless Steel bearings and Thrust Ball bearing with flat seat.

Our products are wildly used in variety kinds of micro motors, cooling fans, instruments, printers, copiers, householdappliances, medical equipments, fishing tackles, mining machines, elevators and accessories industry, precision machine tools andmany other industries.

DAW Bearing Company Limited was established in 2002. The company is headquartered in Baoan district of Shenzhen in Guangdong province. The company ' s production research and development base is located in the Pudong new area of Shanghai,where is the bearing base of China. The company covers more than 30 acres of land with a floor area of 20,000 square meters. We have 21 middle and senior technical personnel, 230 employees, and a annual output value of more than 130 million yuan.

We' ve adopted the automatic flow production and introduced in domestic advanced Automatic numerical control high precision grinding machine, end face automatic ultra-precision machine and a whole set of automatic equipment. And formed a complete set of detection system by matched the testing equipment with Y9025G roundness tester, JB-3C fine roundness instrument,metroscope， YZ- 1 light microscope, S0910 vibration measurer, BVT- 1 three band measuring devices. The company passed IS09001 - 2008 International Quality System Identification and EU Enterprise Environmental Identi fication earlier. We also have the ROHS environmental certification. For processing technic, we’ re always endeavor to do better and put the best of our bearings into the market.

“Good quality and customer always come first" has been the operating service purpose these years. Welcome all the new and old clients to contact us to negotiate! We are sincerely looking forward to the successful cooperation with you!