Inch type synchronous belt gear tooth classification: MXL, XL, L, H, XH, XXH
British synchronous belt pulley Raw materials: generally made of steel, aluminum alloy, cast iron, brass, etc. The inner hole has round hole, D-shaped hole, conical hole and other forms.
British synchronous belt 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 British ladder type synchronous belt produced by our factory is not only a matching of the British ladder gear synchronous belt of domestic equipment, but also can replace the imported British ladder gear synchronous belt.
2, user customized inch ladder type synchronous pulley, please provide pulley drawings (the drawing does not need to draw the tooth shape size of the pulley), our factory can also draw pulley drawings according to the specifications provided by the user, the inner hole of the pulley, the keyway, the width and other dimensions.
3, our factory inch ladder synchronous pulley 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 mm3.3 | +0.2 0 |
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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 | MXL | XXL | XL | L | H | XH | XXH | |||||||
Width of the bottom of the alveolar bw | 0.84±0.05 | 1.14±0.05 | 1.32±0.05 | 3.05±0.10 | 4.19±0.13 | 7.90±0.15 | 12.17±0.18 | |||||||
Depth of tooth space hg | 0.69 | 0 | 0.84 | 0 | 1.65 | 0 | 2.67 | 0 | 3.05 | 0 | 7.14 | 0 | 10.31 | 0 |
-0.05 | -0.05 | -0.08 | -0.10 | -0.13 | -0.13 | -0.13 | ||||||||
Half Angle of the alveolar Φ+1.5° | 20 | 25 | 25 | 20 | 20 | 20 | 20 | |||||||
Root radius rb | 0.35 | 0.35 | 0.41 | 1.19 | 1.60 | 1.98 | 3.96 | |||||||
Tip fillet radius rt | 0.13 | +0.05 | 0.30 | +0.05 | 0.64 | +0.05 | 1.17 | +0.13 | 1.60 | +0.13 | 2.39 | +0.13 | 3.18 | +0.13 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||
Twice the pitch 2β | 0.508 | 0.508 | 0.508 | 0.762 | 1.372 | 2.794 | 3.048 |