Precision automation, robotics, and cleanroom conveying systems require high-torque power transmission without the high noise levels, lubrication oil mist, or positioning backlash associated with metal chains or older trapezoidal belts. Integrating a versatile g-type timing belt delivers an optimal balance between high load capacity, whisper-quiet operation, and cost-effective drive economics.
The G-profile features a refined arc-tooth geometry situated bridge-like between conventional trapezoidal profiles and ultra-high-precision GT profiles. Power is transmitted through normal force acting along the curved tooth flank, providing distinct mechanical advantages over traditional drive belts:
The smooth transition at the tooth root distributes bending stresses evenly across the profile. Compared to trapezoidal timing belts of the same pitch, the G-profile delivers 30% to 50% higher torque transmission without risking tooth shear under shock loads or frequent start-stop cycles.
Progressive tooth entry into pulley grooves minimizes the polygonal effect and meshing impact. Operating sound levels are consistently maintained between 58 and 65 dBA, making this series ideal for sound-sensitive laboratory, electronics, and office environments.
Positive tooth engagement forces the driven shaft to follow the drive motor in exact proportion with high transmission efficiency (95% to 97%), guaranteeing zero rotational slip for fixed-length indexing and linear positioning modules.
Kaihong utilizes premium synthetic polymers and high-tensile cords built to withstand fatigue, oil exposure, and thermal fluctuations ranging from -30°C to +120°C.
| Layer | Material | Function |
| Belt backing / body | Chloroprene rubber CR (HNBR, PU optional) | Encases tensile cord; weather and aging resistance |
| Tensile member | Fiberglass cord (aramid / steel cord optional) | Carries tensile load; keeps pitch stable |
| Tooth facing | Nylon 66 elastic wear-resistant fabric | Reduces friction; resists tooth flank wear |
Standard belts feature zero-elongation fiberglass cord tensile cores that maintain pitch stability without tension decay. For heavy shock loads or severe pull-force applications, ultra-high strength aramid (Kevlar) or steel cord cores can be integrated upon request.
The tooth surface is jacketed with a wear-resistant Nylon 66 woven fabric layer. This low-friction jacket reduces tooth flank wear, lowers meshing noise, and protects the inner elastomer from physical breakdown.
Kaihong manufactures standard G-profile pitch profiles designed for seamless integration into industrial power drive layouts:
| Type | Pitch (mm) | Tooth Height (mm) |
| G8M | 8.0 | 3.43 |
| G14M | 14.0 | 6.00 |
Note: Smaller pitch sizes (including 2M, 3M, and 5M) are also produced for miniature precision mechanisms and compact automated equipment.
Due to its high torque density, clean dry operation, and low noise footprint, a high-durability g-type timing belt is extensively specified across advanced manufacturing fields:
Powers SMT component placement axes, optical inspection positioning stages, and silicon wafer transfer arms requiring zero vibration and precise indexing.
Drives fixed-length feeding conveyors, rotary carton sealers, labeling machine drives, and commercial printing cylinder shafts.
Provides lubricant-free, oil-mist-free power transmission across pharmaceutical tablet sorters, food packaging conveyors, and medical diagnostic machinery.
Integrated into multi-axis robotic joints, linear actuator modules, and CNC machine tool feed spindles requiring high repeat positioning accuracy.
Applying correct engineering sizing protocols ensures optimal drive longevity and prevents premature tooth wear.
1. Select Profile Pitch: Choose 2M, 3M, 5M, 8M, or 14M based on required torque and speed. Use smaller pitches for space-restricted layouts and larger pitches for heavy loads.
2. Calculate Length & Tooth Count: Compute pitch length from shaft center distance and pulley tooth counts, then round to a standard tooth count.
3. Determine Belt Width: Check the width load-rating table against design horsepower and operational service factors, including a 20% to 30% safety margin.
The G-profile features specific tooth curvature dimensions. Always pair a G-profile belt with matching G-profile pulleys. Never attempt to run G-profile belts on trapezoidal (T/L/H) or standard HTD pulleys, as mismatched tooth profiles cause tooth binding, accelerated wear, and premature tooth shear.
Verify pulley concentricity and parallel alignment before installation. Set installation tension using a tension meter so the belt seats without tooth-side clearance—over-tensioning damages motor bearings, while under-tensioning leads to tooth ratcheting. Store belts flat in a cool, dry room away from direct light and heat; never fold or crimp belts during storage.
No. Although they all feature rounded tooth concepts, their exact tooth flank curves, root radii, and pressure angles differ. Mixing different profiles causes improper tooth seating, dynamic noise, high wear, and early tooth breakage.
Tooth jumping occurs when drive tension is set too low, when severe shock loads exceed the belt's rated torque capacity, or when pulley teeth become worn out. Verify installation tension and inspect pulley tooth profiles if jumping occurs.
Yes. Kaihong offers comprehensive custom engineering, including thickened backings, surface grooving, backing perforations, integrated guide cleats, food-grade polyurethane (PU) formulations, antistatic conductive compounds, and high-temperature HNBR rubber options based on buyer drawings or physical samples.
Looking for reliable synchronous drive components for new equipment development or global aftermarket supply? Certified to ISO 9001:2015 and ISO 14001:2015, Kaihong guarantees full-process quality control across incoming materials, in-process molding, and final product batch sampling.
Request Technical Assistance: Standard models ship same-day from stock, with custom orders delivered in 7 to 15 days. Submit your profile specifications, drawings, or annual purchase requirements today to receive free drive sizing assistance and a direct factory quote within 24 hours.
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No. 48 Guangming Middle Road, Sanmen County, Taizhou City, Zhejiang Province, China
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