Customer's Voice

I purchased a 3/8-inch sprocket from Company A and a 3/8-inch chain from Company B, and was told by the engineer that these two could not be assembled at all. The reason was that the pins of the chain were too short and the width was not even 5.7 degrees. In the end, I had to buy a product that could be assembled from the market again, which took 3 days.
If you purchase a set of 06B sprocket and 06B chain from MISUMI, you can use them immediately after receiving the products.

Introduction of specifications

Economic sprockets/chains are available in 12 commercial series in European and Japanese standards to meet your daily design needs.
European standards (6 series)

	Nominal model name	06B	08B	10B	12B	16B	20B
Sprocket	Number of Teeth	10~30	10~30	10~25	11~25	11~25	9~20
Chain	Number of links		4 links – all customizable

Japanese standard (6 series)

	Nominal model name	25	35	40	50	60	80
sprocket	Number of teeth	16~40	9~40	9~40	9~35	9~30	9~21
Chain	Number of links		4 links – all customizable

※ Misumi economic sprockets/chains can be assembled and used if they are the same nominal model. ※ There are 11 types of economic idler pulleys in 4 series and can be used in set design mechanisms.

Differences in standard performance between economy type and market distribution type

	Misumi existing product	Misumi economy type	Market distribution type※
Sprocket hardness	HRC45	HRC40	HRC20
Sprocket conversion life	3 years or more	2 years or more	1 year or more
Sprocket roller hardness	HRA75	HRA68	HRA42
Sprocket roller tensile strength	12.5kN	9.3kN	7.4kN
Standard type name	Japanese standard 25~100 only	Japanese standard 25~80, European standard 06B~20B	European standard 06B~08B only

Sprocket strength comparison

Misumi economy type

- Tooth surface high frequency heat treatment M
- Hardness 40HRC or more
Wear resistance long life

VS

Market distribution product ※

- Hardness 20HRC
- Tooth surface wear severe
Teeth easily wear out and frequent snagging

※ There are many difficulties when using market distribution products.

Comparison of meshing degree of sprocket and chain (smooth meshing when meshing tolerance is 0.03~0.08)

Misumi Economy Type

- All dimensions meet GB standards
- The meshing tolerance is 0.04~0.06, so the meshing is smooth

VS

Market products ※

- The meshing tolerance is a small value of 0~0.024, so the meshing is not good
- The chain often comes off the sprocket

※ Cases of poor quality of market products ※ The market products on the above page are similar products that our company purchased randomly from online and offline markets. Please note that the experimental data is obtained through our inspection measurements and is for reference only.