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Product Description

Type：6004/22-2RS
Material：Bearing steel
Select Bearing grades：ordinary class ，Motor class or Specialty class
Inner Diameter：22mm
Outer Diameter：42mm
Thickness：12mm
Package Includes：3pcs bearings
 
Feature:
Bearing grades mainly include ：ordinary grade，motor grade，Specialty grade.
1. ordinary class：national standard P0 class。Dimensional accuracy less than ±0.05mm，Speed less than 1000rpm，Suitable for low speed, low requirements. Such as: low-speed transmission equipment，casters， baby carriages， toy cars， etc.
2. Motor class：national standard P0Z2 class above。Dimensional accuracy less than ±0.01mm，feels smooth , Speed less than 20000rpm, Low noise and long service life. Suitable for motors， toy models， automobiles， power tools， pneumatic tools，telecommunications equipment，fitness equipment， sports equipment， etc.
3. Specialty class: national standard P6 class above。 Dimensional accuracy less than ±0.005mm [can replace imported] ，feels smooth , Speed is greater than 20000rpm，Low noise and long service life.。Suitable for high-speed motors，high-speed models，instrumentation， precision equipment，high-end toys and other areas with high requirements.
Bearing materials mainly include : iron sheets， carbon steel， bearing steel，stainless steel， plastic， ceramics and other new materials.
1. [iron sheets] and [carbon steel] material：Low hardness， poor product accuracy and stability， and short service life。 The quality is very poor，the store will not sell.
2. [Bearing steel] material：Also known as [chrome steel]，Steel grade: GCr15 is a special steel for international bearing industry standard
3. [Stainless steel] material：Default is stainless steel 440C material (with magnetic) It is an environmentally friendly standard steel for bearing industry。has the waterproof， rust-proof，anti-corrosion， acid and alkali resistance， strong stability， maintenance-free， long service life and no rust。Widely used in food machinery，Medical equipment，instrumentation，High-end crafts，high-end fishing gear，fishing reels，high-end toys, etc。 Please do not use magnetics to judge the pros and cons of stainless steel bearings.
4. [Plastic] and [ceramic] and other materials：Mainly used for insulation，Non-magnetic，etc.
 
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if you need a tracking number , please choose " Standard Shipping ",it means free shipping with a tracking number,you only pay it one time,and you can buy whatever you want,we can ship it for you together with a tracking number,if you have any problem,please feel free to contact us .  
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please allow 3-6 weeks to deliver, if package is not received in time, please contact us. We will resend or refund for you.

Buyers' Information: We strive our best to provide you the most reliable, affordable way of shipping service. But sometimes international delivery is highly depended on the courier company and local customs/duties. If you do not receive your item on time, please contact us immediately for further assistance. Thank you for your understanding. 

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Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.
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