Aluminum Timing Belt Pulleys
Sanmin Gears categorizes their aluminum timing pulleys into four main types based on market demand: HTD Series Timing Pulleys, MXL Series Timing Pulleys, T Series Timing Pulleys and AT Series Timing Pulleys.
This allows them to provide a more targeted and specialized product selection for their customers, meeting their specific needs and requirements.
HTD Series Timing Pulleys
Sanmin Gears produces high-quality HTD aluminum timing belt pulleys in 3M, 5M, and 8M using materials such as steel, aluminum alloy, cast iron, and brass. They offer precise transmission, low noise, high efficiency, and large speed ratio adjustment. Their precision processing and strict quality control ensure reliable and long-lasting use.
| Type | shape | P.D | O.D | F | M | DM | H | C.N |
| 14-3M | A | 13.37 | 12.61 | 16 | 9.5 | 16 | 4,5,6 | NO |
| 15-3M | A | 14.32 | 13.56 | 18 | 11 | 18 | 4,5,6 | NO |
| 16-3M | A | 15.28 | 14.52 | 18 | 11 | 18 | 4,5,6,7 | NO |
| 18-3M | A | 17.19 | 16.43 | 23 | 13 | 23 | 4,5,6,8 | NO |
| 19-3M | A | 18.14 | 17.38 | 23 | 13 | 23 | 5,6,7,8 | NO |
| 20-3M | A | 19,1 | 18.34 | 23 | 13 | 23 | 5,6,7,8 | NO |
| 14-3M-3 | A | 13.37 | 12.61 | 16 | 9.5 | 16 | 3 | NO |
| 14-3M-4 | A | 13.37 | 12.61 | 16 | 9.5 | 16 | 4 | NO |
| 14-3M-5 | A | 13.37 | 12.61 | 16 | 9.5 | 16 | 5 | NO |
| 14-3M-6 | A | 13.37 | 12.61 | 16 | 9.5 | 16 | 6 | NO |
| 21-3M | A | 20.05 | 19.29 | 24 | 13 | 10 | 6,8,10,12 | NO |
| 22-3M | A | 21.01 | 20.25 | 25 | 16 | 10 | 8,10,12 | NO |
| 23-3M | A | 21.95 | 21.19 | 25 | 16 | 12 | 7,8,10,12 | NO |
| 24-3M | A | 22.92 | 22.16 | 25 | 16 | 14 | 8,10,12 | NO |
| 25-3M | A | 23.86 | 23.10 | 26 | 17 | 10 | 6,10,12 | NO |
| 26-3M | A | 24.83 | 24.07 | 28 | 18 | 12 | 7,8,10,12 | NO |
| 27-3M | A | 25.79 | 25.02 | 28 | 18 | 14 | 8,10,12 | NO |
| 28-3M | A | 26.74 | 25.98 | 31 | 20 | 16 | 8,10,12,14 | NO |
| 29-3M | A | 27.69 | 26.94 | 32 | 20 | 17 | 10,12,14,16 | NO |
| 30-3M | A | 28.64 | 27.89 | 33 | 22 | 16 | 12,14,16 | NO |
| 31-3M | A | 28.56 | 28.84 | 33 | 22 | 17 | 10,14,16 | NO |
| 32-3M | A | 30.23 | 29.80 | 35 | 24 | 18 | 10,14,15 | NO |
| 48-3M | Electric scooter | 30.23 | 45.84 | 45.07 | 16 | 25 | 16-80 | 6*M8 |
| 34-3M | A | 32.47 | 31.71 | 10 | 28 | 41 | 10,14,15,16 | NO |
| 36-3M | A | 34.38 | 33.62 | 12 | 28 | 41 | 10,14,15,16 | NO |
| 40-3M | A | 38.06 | 37.44 | 12 | 32 | 44 | 10,14,15,16 | NO |
| 44-3M | A | 42.01 | 41.26 | 10 | 36 | 48 | 10,14,17,16 | NO |
| 50-3M | A | 47.54 | 46.98 | 10 | 38 | 52 | 14,17,16 | NO |
| 60-3M | A | 57.09 | 56.53 | 10 | 46 | 60 | 15,17,16 | NO |
| 72-3M | A | 68.76 | 68 | 10 | 55 | 75 | 15,18,16 | NO |
| 14-5M | B | 22.28 | 22.14 | 14 | 16 | 25 | 8 | M4 |
MXL Series Timing Pulleys
Maximize precision and power with MXL timing pulleys, ideal for small-scale machinery. With design features like a lightweight, trapezoidal tooth shape, and high precision, these aluminum pulleys are perfect for accurate positioning at high speeds. SanMin Gears has been the largest and most experienced MXL timing pulley manufacturer for over 20 years, ensuring top-quality products.
| Type | shape | P.D | O.D | F | M | DM | H | C.N |
| 14MXL | C | 9.06 | 8.55 | 12 | 6 | 12 | 3,4 | NO |
| 15MXL | C | 9.7 | 9.19 | 12 | 6 | 12 | 3,4 | NO |
| 16MXL | C | 10.35 | 9.84 | 14 | 7 | 14 | 3,4,5 | NO |
| 18MXL | C | 11.64 | 11.14 | 14 | 7 | 14 | 3,4,5 | NO |
| 19MXL | C | 12.29 | 11.78 | 14 | 7 | 14 | 3,4,5 | NO |
| 20MXL | A | 12.94 | 12.43 | 18 | 11 | 9 | 4,5,6 | NO |
| 21MXL | A | 13.58 | 13.08 | 18 | 12 | 12 | 3,4 | NO |
| 22MXL | B | 14.23 | 13.72 | 18 | 12 | 12 | 3,4 | NO |
| 22MXL | A | 14.92 | 13.72 | 18 | 12 | 12 | 3,4 | NO |
| 23MXL-3 | A | 15.54 | 14.37 | 20 | 12 | NO | 3 | NO |
| 23MXL-4 | A | 15.54 | 14.37 | 20 | 12 | NO | 4 | NO |
| 23MXL-5 | A | 15.54 | 14.37 | 20 | 12 | NO | 5 | NO |
| 23MXL-3 | B | 15.54 | 14.37 | 20 | 12 | 11 | 3 | 1*M3 |
| 23MXL-4 | B | 15.54 | 14.37 | 20 | 12 | 11 | 4 | 1*M3 |
| 23MXL-5 | B | 15.54 | 14.37 | 20 | 12 | 11 | 5 | 1*M3 |
| 23MXL-6 | B | 15.54 | 14.37 | 20 | 12 | 11 | 6 | 1*M3 |
| 23MXL-7 | B | 15.54 | 14.37 | 20 | 12 | 11 | 7 | 1*M5 |
| 23MXL-8 | B | 15.54 | 14.37 | 20 | 12 | 11 | 8 | 1*M6 |
| 23MXL-6 | A | 15.54 | 14.37 | 20 | 12 | NO | 6 | NO/A |
| 23MXL-7 | A | 15.54 | 14.37 | 20 | 12 | NO | 7 | NO/A |
| 23MXL-8 | A | 15.54 | 14.37 | 20 | 12 | NO | 8 | NO/A |
| 24MXL-3 | A | 15.52 | 15.02 | 20 | 12 | NO | 3 | NO/A |
| 24MXL-4 | A | 15.52 | 15.02 | 20 | 12 | NO | 4 | NO/A |
| 24MXL-5 | A | 15.52 | 15.02 | 20 | 12 | NO | 5 | NO/A |
| 24MXL-6 | A | 15.52 | 15.02 | 20 | 12 | NO | 6 | NO/A |
| 24MXL-7 | A | 15.52 | 15.02 | 20 | 12 | NO | 7 | NO/A |
| 24MXL-8 | A | 15.52 | 15.02 | 20 | 12 | NO | 8 | NO/A |
| 25MXL-3 | A | 15.93 | 15.66 | 20 | 12 | NO | 3 | NO/A |
| 25MXL-4 | A | 15.93 | 15.66 | 20 | 12 | NO | 4 | NO/A |
| 26MXL | A | 16.82 | 16.31 | 23 | 13 | NO | 4,5,6,7,8 | NO/A |
| 27MXL | A | 17.34 | 16.96 | 23 | 13 | NO | 5,6,7,8,10 | NO/A |
| 28MXL | A | 17.96 | 17.6 | 23 | 13 | NO | 6,7,8,10 | NO/A |
| 30MXL | A | 19.40 | 18.90 | 25 | 16 | NO | 7,8,10,12 | 2*M4 |
| 32MXL | A | 20.70 | 20.19 | 25 | 18 | NO | 8,10,12 | 2*M4 |
| 34MXL | C | 21.99 | 21.48 | 25 | 20 | NO | 6,8,10,12 | 2*M4 |
| 36MXL | C | 23.29 | 22.78 | 30 | 20 | 16 | 8,10,12 | 2*M4 |
| 38MXL | C | 24.58 | 24.07 | 30 | 21 | 16 | 8,10,12,14 | 2*M4 |
| 40MXL | C | 25.87 | 25.36 | 31 | 20 | 15 | 12,14,15 | 2*M4 |
| 42MXL | C | 27.07 | 26.59 | 31 | 24 | 18 | 12,14,15 | 2*M4 |
| 44MXL | C | 28.54 | 27.95 | 33 | 26 | 20 | 10,14,15 | 2*M4 |
| 46MXL | C | 30.12 | 29.24 | 33 | 27 | 20 | 9,10,14,15 | 2*M4 |
| 48MXL | B | 31.09 | 30.54 | 34 | 28 | 10 | 10,14,15 | 2*M4 |
| 50MXL | B | 32.45 | 31.83 | 34 | 29 | 12.5 | 10,14,15 | 2*M4 |
| 60MXL | A | 38.95 | 38.30 | 44 | 32 | 18 | 9,14,15 | NO/A |
| 70MXL | A | 46.74 | 46.06 | 52 | 38 | 10 | 9,14,15 | NO/A |
T Series Timing Pulleys
Optimize your power transmission with T2.5 T5 T10 timing pulleys from Sanmin Gears. Our pulleys are made from various materials such as steel, aluminum, and brass, and come in different bore shapes and surface treatments. We specialize in producing pulleys suitable for domestic and imported timing belts, and can customize them to your specifications.
T2.5 T5 T10 pulleys offer accurate transmission, low noise, high efficiency, durability, and can transmit over long distances with high-strength torque operations. Trust Sanmin Gears for reliable and high-quality timing belt pulleys that meet your power transmission needs.
| Type | shape | P.D | O.D | F | M | DM | H | C.N |
| T2.5-16 | C | 12.73 | 12.22 | 16 | 9.5 | 16 | 3,4,5 | NO |
| T2.5-18 | C | 14.32 | 13.81 | 18 | 11 | 18 | 3,4,5 | NO |
| T2.5-20 | C | 15.92 | 15.41 | 20 | 12 | 20 | 4,5,6 | NO |
| T2.5-21 | C | 16.71 | 16.20 | 21 | 12 | 20 | 4,5,6 | M4 |
| T2.5-22 | C | 18.03 | 16.75 | 23 | 13 | 20 | 4,5,6 | M4 |
| T2.5-23 | C | 18.98 | 18.30 | 25 | 15 | 20 | 5,6 | M4 |
| T2.5-24 | C | 19.10 | 18.59 | 25 | 16 | 20 | 5,6 | M4 |
| T2.5-30 | C | 23.87 | 23.34 | 31 | 16 | 20 | 5,6，8 | M4 |
| T2.5-32 | C | 25.47 | 24.96 | 32 | 22 | 20 | 5,6，8 | M4 |
| T2.5-34 | C | 26.55 | 25.53 | 35 | 22 | 20 | 5,6，8 | M4 |
| T2.5-38 | C | 28.97 | 28.14 | 35 | 26 | 20 | 5,6，8 | M4 |
| T2.5-40 | C | 31.98 | 31.32 | 38 | 26 | 20 | 8，10 | M4 |
| T2.5-42 | C | 33.54 | 32.91 | 42 | 28 | 20 | 8，10 | M4 |
| T5-12 | B | 19.10 | 18.25 | 23 | 13 | 15 | 8，10 | M4 |
| T5-14 | B | 22.28 | 21.43 | 25 | 16 | 14 | 5,6，8 | M4 |
| T5-15 | B | 23.88 | 23.03 | 28 | 22 | 14 | 6，8 | M4 |
| T5-16 | B | 25.46 | 24.61 | 32 | 22 | 14 | 6，10 | M4 |
| T5-18 | B | 27.80 | 25.33 | 33 | 24 | 16 | 8，10 | M4 |
| T5-20 | B | 30.98 | 31.83 | 35 | 24 | 20 | 8，10 | M4 |
| T5-22 | B | 34.16 | 35.13 | 40 | 32 | 24 | 8，12 | M4 |
| T5-24 | B | 37.35 | 38.12 | 44 | 35 | 25 | 14，12 | M4 |
| T5-26 | B | 40.53 | 41.02 | 47 | 35 | 30 | 14，15 | M4 |
| T5-28 | B | 43.71 | 44.21 | 47 | 33 | 30 | 14，18 | M4 |
| T5-30 | B | 44.71 | 45.21 | 47 | 33 | 30 | 14，18 | M4 |
AT Series Timing Pulleys
Sanmin Gears produces high-quality AT timing belt pulleys that offer accurate transmission, low noise, and high efficiency. Made from materials such as steel, aluminum, and brass, our pulleys can be customized to your specifications with different bore shapes, surface treatments, and dimensions.
With a transmission efficiency of up to 0.98 and the ability to transmit over long distances, our AT pulleys are durable and cost-effective. Compared to MXL, AT pulleys have a larger torque and can achieve high-strength torque operations. Trust Sanmin Gears for reliable and customized AT timing belt pulleys for your power transmission needs.
GT2 Timing Pulleys
Sanmin Gears will provide you with the most complete series of GT2 timing pulleys and timing belts
GT2 timing pulleys and belts are crucial components of 3D printers, as their precise transmission ensures the reliability and accuracy of the entire device.
At this point, the concentricity of the pulley’s bore and tooth surface plays a critical role, as our 15 years of production experience have shown that quality is the key to efficient and stable 3D printing.
Additionally, the clearance between GT2 timing pulleys and belts is one of the sources of transmission noise, so improving the precision of the pulley’s cutting tools and the accuracy of the belt’s mold is crucial to achieving precise transmission and solving noise issues.
| Type | shape | P.D | O.D | F | M | DM | H | C.N |
| GT2-20 | B | 12.73 | 12.22 | 7.5 | 7.5 | 16 | 6.35 | 2*M4 |
| GT2-20 | B | 12.73 | 12.22 | 7.5 | 7.5 | 16 | 8 | 2*M4 |
| UMGT2-20 | B | 12.73 | 12.22 | 7.5 | 7.5 | 16 | 5 | 2*M4 |
| DoubleGT2-20 | B | 12.73 | 12.22 | 2*7.5 | 2*7.5 | 16 | 5 | 2*M4 |
| DoubleGT2-20 | B | 12.73 | 12.22 | 2*7.5 | 2*7.5 | 16 | 8 | 2*M4 |
| GT2-16 | B | 10.18 | 9.65 | 7.5 | 7.5 | 14 | 9 | 2*M4 |
| GT2-18 | B | 11.68 | 10.56 | 10.5 | 10.5 | 15 | 5 | 2*M4 |
| GT2-18 | B | 11.68 | 10.56 | 6.5 | 7.5 | 16 | 6.35 | 2*M4 |
| GT2-32 | B | 20.37 | 19.86 | 6.5 | 9 | 18.5 | 10 | 2*M4 |
| GT2-24 | B | 15.28 | 14.77 | 6.5 | 7.5 | 6 | 5 | 2*M4 |
| GT2-40 | A | 25.48 | 24.97 | 6.5 | 7.5 | 20 | 10 | 2*M4 |
| GT2-50 | A | 32.46 | 31.98 | 6.5 | 12 | 20 | 5 | 2*M4 |
| Idler Pulleys | NO/A | GT2/NO | NO | NO | NO | NO | 3 | NO/A |