STS/STD tooth synchronous pulley

Product listCixi Xinlong synchronous belt pulley Co., LTD

STS/STD tooth synchronous pulley is also known as semi-arc tooth synchronous pulley.

STS/STD gear synchronous pulley classification: S2M, S3M, S4.5M, S5M, S8M, S14M

STS/STD gear synchronous pulley Raw materials: Generally made of steel, aluminum alloy, cast iron, brass, and other materials. The inner hole has round hole, D-shaped hole, conical hole and other forms.

STS/STD tooth synchronous pulley surface treatment: natural oxidation, blackening, zinc plating, color zinc plating, high-frequency quenching and other treatment. Accuracy level depends on customer requirements.

1, the STS/STD gear synchronous belt produced by our factory is not only for the STS/STD gear synchronous belt of domestic equipment, but also can replace the imported STS/STD gear synchronous belt.

2, customized STS/STD gear synchronous pulley, please provide the pulley drawing (it is not necessary to draw the tooth shape size of the pulley in the drawing), our factory can also draw the pulley drawing according to the specifications provided by the user, the inner hole of the pulley, the keyway, the width and other dimensions for the user.

3, our factory STS/STD synchronous belt wheel can be processed according to user needs, and our factory can also develop drawings for users.

Presentation method Code Material Surface treatment
LYA Aluminum alloy Natural anodizing
LYZ Hard oxidation
LYH Do not process
LYY 45# steel Blackening treatment
LYD Galvanizing
LYM Do not process
Standard keyway size table (dH7: indicates inner hole size; bJS9: indicates the keyway width; t tolerance: keyway depth
Model dH7 bJS9 t tolerance Model dH7 bJS9 t tolerance Model dH7 bJS9 t tolerance
N8 8 +0.015
0
3 ±0.0125 1.4 +0.1
0
N23 23 +0.021
0
8 ±0.018 3.3 +0.2
0
N38 38 +0.025
0
10 ±0.018 3.3 +0.2
0
N10 10 N24 24 N39 39 12 ±0.0215
NK10 10 +0.018
0
4 ±0.015 1.8 N25 25   N40 40
N11 11 N26 26 N41 41
N12 12 2.3 N27 27 N42 42
N13 13 N28 28 N43 43
N14 14 5 N29 29 N44 44
N15 15 N30 30 N45 45 14 3.8
N16 16 N31 31   N46 46
N17 17 N32 32 +0.025
0
10 N47 47
N18 18 6 2.8 N33 33 N48 48
N19 19 +0.021
0
N34 34 N49 49
N20 20 N35 35 N50 50
N21 21 N36 35              
N22 22 N37 37              
Note: when the shaft hole is 10, the keyway width is 4.0MM, and the keyway depth is 1.8MM, the shaft hole is indicated by NK10
Model Pitch Pb Slot width S Tooth height hg Base radius R Tip radius rb Root radius rt
S2M 2.00 1.30 0.76 1.325 0.19 0.10
S3M 3.00 1.95 1.11 1.975 0.28 0.15
S4.5 4.50 2.93 1.59 2.980 0.38 0.20
S5M 5.00 3.25 1.77 3.275 0.55 0.25
S8M 8.00 5.20 2.83 5.300 0.75 0.40
S14M 14.00 9.10 4.95 9.280 1.31 0.75