Synchronous Pulley

5GT Synchronous Pulley

Synchronous pulleys are specialized pulleys with either teeth or pockets around the outside diameter of the pulley body. Synchronous teeth engage holes in the metal belt, while synchronous pockets engage drive lugs on a belt’s inner circumference. These teeth or pockets are used only for synchronous, not for power transmission.

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Synchronous pulleys are specialized pulleys with either teeth or pockets around the outside diameter of the pulley body. Synchronous teeth engage holes in the metal belt, while synchronous pockets engage drive lugs on a belt’s inner circumference. These teeth or pockets are used only for synchronous, not for power transmission.

Product Parameters

Please follow the selection steps 1~5 to select the form and parameters before ordering.
Form (1Type · 2 teeth · 3 belt nominal width 4 pulley shapes 5-axis hole specification (H/P/N(NK)/V/Y)
GT5090 A NK10

 

Form M material S surface treatment An accessory fixing screw Tooth diagram
Belt width 9MM Belt width 12MM Belt width 15MM Pulley Flange
A:10.3 W:14.0 L:22.0 A:13.3 W:17.0 L:25.0 A:16.3 W:20.0 L:28.0
GT5090 GT5120 GT5150 Aluminum alloy Aluminum alloy Natural anodizing treatment SCM435
(Fe3O4 protective film)
GT5090 GT5120 GT5150 C45 SPCC Iron tetroxide protective film SCM435
(Fe3O4 protective film)

Pulley Shape

Shaft Hole Specification

Type 4. pulley shape 5. Shaft hole specification (~) specified unit 1mm (·) selection Number of teeth P.D O.D D F E
1. Type 2. Number of teeth 3. Type and nominal width H
Round hole
P
Round hole + threaded hole
N(C)
Keyway hole + threaded hole
(aluminum alloy)
KJPA(iron)
KJPM
14 GT5090
*A:10.3
*W:14.0
*L:22.0GT5120
*A:13.3
*W:17.0
*L:25.0GT5150
*A:16.3
*W:20.0
*L:28.0
A/B 6~8 14 22.28 21.14 12 26 16
15 6~10 15 23.87 22.73 13 27 17
16 6~12 6 16 25.46 24.32 15 29 19
18 6~14 6~9 18 28.65 27.51 18 32 22
20 8~16 8~10 8 20 31.83 30.69 20 35 24
22 8~19 8~12 8 22 35.01 33.87 22 39 27
24 8~22 8~16 8·10 24 38.20 37.06 26 42 30
25 8~24 8~16 8~12 25 39.79 38.65 28 43 32
26 10~24 10~16 10~13 26 41.38 40.24 28 45 33
28 10~27 10~20 10~15 28 44.56 43.42 30 48 36
30 10~28 10~22 10~16 30 47.75 46.61 32 51 39
32 10~30 10~22 10~17 32 50.93 49.79 34 55 42
34 12~32 12~24 12~18 34 54.11 52.97 36 58 46
36 12~34 12~26 12~20 36 57.30 56.16 38 61 49
40 12~36 12~26 12~22 40 63.66 62.52 40 67 55
44 12~38 12~26 12~23 44 70.03 68.89 42 74 62
48 12~42 12~30 12~26 48 76.39 75.25 46 80 68
50 12~42 12~30 12~27 50 79.58 78.44 46 83 71
60 12~48 12~30 12~30 60 95.49 94.35 52 99 87
Note: Type A pulleys do not have L and D dimensions.

Attachment fixing screw (when shaft hole P·N·C is selected)

Shaft hole specification(P/N/C) 2-M
Coarse thread
Appendix
fixing screw
Shaft diameter
6~12 M4 M4×3
13~30 M5 M5×4
31~45 M6 M6×5(Type A only)

Features of Synchronous Pulley

(1) Eliminates Slippage: Positive grip of belt teeth with “Timing Pulley” grooves eliminates Slippage and speed variation.

(2) Less Bearing Load: The Positive Drive Belt does not rely on friction. There is no need for high initial tension.

(3) Less Space: Small Timing Pulleys, Short centers, narrow belts, and high capacity-all these inherent features can be combined to reduce space requirements.

(4) Constant Angular velocity: Speed is transmitted uniformly. There is no chordal rise and fall of pitch line as with roller chain, no belt creep or slippage-thus no chatter or vibration.

(5) Smoother Running: Backlash between the teeth of stock belts and grooves of stock pulleys is reduced to a negligible minimum. ; Wide Range of load capabilities and Wide Speed Range:

(6) Less Maintenance: Maintenance costs can be reduced because the absence of metal-to-metal contact eliminates the need for lubrication systems.

(7) Less Noise: Throughout the normal speed range of industrial and light-duty drives. The noise level is a relatively low-an important consideration in many machine and equipment installations.

(8) Less weight: The horsepower-to-weight ratio is a high-an important consideration where weight is a critical factor, such as in aircraft and portable equipment. Timing Pulleys can be made of light metals or nonmetallic materials.

(9) Economical: These drives do not require motor bases, lubrication systems, or tensioning devices. thus minimizing original and maintenance costs.

Application of Synchronous Pulley

Widely used in automobiles, textiles, printing and packaging equipment, sewing equipment, office equipment, laser engraving equipment, tobacco, financial machinery, stage lighting, communication food machinery, medical machinery, steel machinery, petrochemicals, instrumentation, various precision machine tools and other fields.