Belts, Chains & Cables

WM Berg manufactures several types of industry-proven polyurethane timing belts and chains consisting of PU molded over a stainless steel cable which acts as the force-transmitting spine of the belt. Many of our timing belts and chains are also available with an aramid fiber (i.e. Kevlar®) spine for greater flexibility. Berg belts and chains provide alternative solutions to industry standard timing belts, V-belts, gear drives and roller chain drives for precision and critical applications.

Our belts and chains can be made into any length or number of pitches required by your design, giving you control over shaft center distances. We offer quick turnaround, ten different color options and anti-static material options. View our belts and chains spec sheet and select a product below to learn more.

flex-e-Pitch

Flex-E-Pitch is an alternative to the traditional American roller link chain. While not as strong as roller chain for all applications, Flex-E-Pitch weighs less, features lower inertia, has minimal backlash and requires no lubrication due to the polyurethane molded over a stainless steel cable. This chain is non-magnetic, rust-proof, provides extremely smooth operation and works with a large selection of mating sprockets.

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roller chain alternative

Pow-R-Vee

Pow-R-Vee is designed for commercial equipment drive applications as an alternative to the industry standard V-belt. The Pow-R-Vee is not as strong as standard V-belting, however it can tolerate greater variations in sheave groove angles and can be spliced to size in the field. Pow-R-Vee is easily installed and removed, low maintenance, exhibits little wear over extended periods of time and can dampen sudden shocks or changes in loading. This innovative V-belt alternative can be used with pulleys of any angle, provides positive gripping at all times and is available in any color.

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V-belt alternative

Flex-E-Grip

Flex-E-Grip belts are designed to replace traditional timing belts with increased tensile strength and low stretch due to the stainless steel core. Our patented elongated design means the belt does not require flanges on the timing pulley, which results in silent operation. Flex-E-Grip will not slip, jump, creep or walk off the timing pulley as the center rib ensures the belt tracks straight and has low wear. Available in four compact width sizes and infinite lengths.

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timing belt alternative

Flex-E-Belt

Flex-E-Belt gear drive belt series is designed for applications that can’t attain proper alignment between the sprockets in the system. A single stainless steel cable overmolded with polyurethane accommodates any sprocket misalignment. Deviations up to seven degrees are withstood without loss of motion. The Flex-E-Belt series is also designed to handle a 90° sprocket offset.

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gear drive belt that accommodates sprocket misalignment

Flex-e-gear

Flex-E-Gear is a belt drive series offering a strong drive train that can operate on a standard diametral pitch spur gear modified with a shoulder. Because the gear teeth will not interface, these belts are virtually silent running. Tolerances equivalent to AGMA spur gear classes makes this series an excellent choice for precision motion control applications. Flex-E-Gear is ideal for applications when spacing is an issue, but torque multiplication is not needed—this eliminates the need for multiple gears to provide spacing around a feature (as well as the increased backlash) and simplifies assembly and maintenance.

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quiet belt drive for precision motion control applications

Max-M-Drive

Max-M-Drive is also known as synchronous flat belt with pitched teeth and is an equivalent to the industry standard timing belt. Matched with our pulleys, Max-M-Drive provides a positive no-slip engagement and allows the use of small diameter pulleys. These belts deliver high power transmission, will not stretch and require no lubrication.

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precision timing belt alternative with positive no-slip engagement

Row-L-Er

Row-L-ER chain is the equivalent to standard American roller link chain. The advantages of this series include positive drive between chain and tooth, negligible stretch, long life and the ability to operate in a variety of hostile environments such as high temperature, high moisture, dust, dirt and corrosive environments. Row-L-ER is available in Delrin and Nylatron (no lubrication required) as well as mild steel and stainless steel (must be lubricated).

roller chain with positive drive for harsh environments

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Min-e-Pitch

Min-E-Pitch is a timing belt alternative specially designed with one, two or three spines to add strength while maintaining the flexibility of a single spine construction. They have an operating pitch of 1/20 that can work in circular dimensions, are ideal for low-speed, low-load standard timing chain replacement and do not require lubrication thanks to the polyurethane overmolding (stainless steel or Kevlar® spines). Due to the center rib design, the spines can be twisted and transmit power to mating shafts that are 90° to each other.

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timing belt alternative with center rib design and one, two or three spines

O-Ring Belts & Cords

O-ring belts and cords made from polyurethane and Buna-N offer low break-away friction, high temperature resistance, low permanent set and no special tooling needed.

O-ring Belts and V-Belt Cords

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Aircraft & Fiber Cables

In addition to our continuously molded plastic belts and chains, we offer stainless steel aircraft cable and aramid fiber cable in a range of diameters and lengths. Berg fiber cable has a strength-to-weight ratio approximately 4 times higher than steel in air, and 25 times higher in water (with the same given diameter). Our fiber cable has excellent electrical properties and environmental resistance, and a high modulus of elasticity and low elongation, making it an ideal tensile member in electro-mechanical cables and cable assemblies.

steel aircraft cable construction and aramid fiber cable

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Improve Belt Drive Performance with Berg Belts & Chains

Poor-performing and overdesigned drives can be costly and/or time consuming for any user. Expensive components, complicated assemblies. high repair costs and longer downtime are all reasons to look into making design changes. We manufacture custom belts and chains to meet customer specifications for unique applications.

Learn the fundamentals of belt drive design, including application-specific design considerations, how to accurately tension a belt drive system, calculations for center distance, horsepower, and more. Polyurethane timing belts offer several benefits over all-metal belts, especially in applications involving controls and instrumentation.