1 Mold 21 Teeth Spur Gear 1M 21T Blackened Motor Metal Tab Gear Bore 6/6.35/8 mm
Description:
 

Product Information:
Module: 1 module
Number of teeth: 21 teeth
Outer diameter: 23mm
Step: 17mm
Total height: 18mm
Tooth height: 10mm
Optional Bore: 6/8/10/12
Fixed screws: machine screws M4*2
Material: 45 Steel
Treatment: black surface treatment


Description: The above description of the shape of the data (in addition to the accuracy of the bore) may vary slightly from batch to batch, please prevail in kind!


Purchase Notes:
1. gear material is 45 steel, bore all positive tolerance 0- positive 0.04. spot there may be a small number of burrs, is normal.
2. Gear surface blackening and high-frequency quenching treatment of two kinds, for the hardness of 45 steel raw materials. The surface hardness is about 40-45 degrees.
3.1 mold 10 teeth - 14 teeth because the effective tooth height of 12mm, the rest of the position looked at the teeth, but there is no rolling in place, so the two gears are not suitable for parallel bite!
4. Gear external dimensions (in addition to the accuracy of the bore) may vary slightly from batch to batch, please prevail in kind! Gear distribution machine meter screws, locking screw wrench to be purchased separately, no distribution.
5. In addition to the introduction of 1 mold 80 teeth 90 teeth 100 teeth (step 50) 120 teeth and 150 teeth (step 70) bore 8. No top wire hole. If you need other specifications, welcome to drawings and samples can be customized according to your requirements.

 




 
 
   
 
Package include: 
 
 
According to your choice.
 

Shipping:

We Ship to Worldwide.

Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that's why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed.

We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address.

Package to USA will Shipping by E-Package with Tracking Number(7-15 Days to Delivered). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15-35 Days to Delivered)

Items are shipped via China Post Air Mail.

Guarantee:

Good Good quality. Buy with confidence!

If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it.

Not accept returning of electronic components.

Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer.

We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.

 

 

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●  Good quality. Buy with confidence!
●  If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it.
●  Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer.
●  We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately before you give us neutral or negative feedback, so that we can satisfactorily address your concerns.


●For the functional products in our shop, we make sure that the functions are the same as the description.
●About the product colour:Because of the different light and environment when the product is photographed, In a few instances the colour of the product may have a little colour difference with the actual colour of the product, I hope you can understand.
 

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