Support/Download

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RoHS2 compliant. Please click here for details. If you would like to have a certificate issued, please contact the dealer where you purchased the product or the nearest sales office that handles belts.

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We cannot give an answer for the life expectancy, as it depends on the customer's usage conditions. If the belt is cracked or chipped, please replace it immediately.

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Initial elongation of V-belts is 1-2% for both standard and red V-belts. The belt must be retensioned within 24 hours of tensioning.

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Standard V-belts are made of natural rubber-based material. Red Label V-belts and MAXSTAR WEDGE belts use chloroprene rubber.

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It depends on the conditions of use. However, if the machine has no problem using a standard V-belt, replacing it with a red V-belt is not expected to significantly improve the life of the machine.

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V-belts vary in length. If you are concerned about length differences, please specify as matched set.

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Products from other manufacturers can also be measured. Since the standard values for unit weight and unit mass of belts differ depending on the manufacturer, please contact the belt manufacturer you are using for the unit weight.

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The material of timing belt is below.
【Rubber Belt】Tooth：Chloroprene Rubber　Tensile Cord：Glass Code　Tooth Fabric：Nylon
【Urethane Belt】Tooth：Polyurethane　Tensile Cord：Aramid or Steel wire
Please inquire separately for other MEGA TORQUE series and materials with special specifications.

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Please inquire separately for backlash values between each belt and standard pulleys. The backlash value we provide is the gap between the belt teeth and pulley teeth under static conditions. Backlashless pulleys are available depending on the tooth profile.

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We suggest to switch to our MEGA TORQUE EX This timing belt was developed to increase positioning accuracy through a special tooth profile.

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For normal transmission applications, rubber belts with a wide range of sizes are used. If scattering of rubber powder is a concern,polyurethane belts are preferred, which generate less abrasion powder.

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Timing belt G and timing belt U (MXL, T80, XL, L, H, XH, XXH, etc.) are ISO standard products and are compatible with all companies. Round tooth type products such as SUPER TORQUE series and MEGA TORQUE series are not interchangeable except for some manufacturers.

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Timing belts are maintenance free. The installed tension of the belt will decrease slightly in the first few hours of operation due to the pulleys becoming more familiar with each other. After installation, run the belt for about 1 minute (or 10 rpm for slower speed) to allow it to acclimate, and then tension it at the specified tension. There is no need to re-tension the belt after that.
※Re-tensioning the timing belt may cause poor meshing and shorten the life of the belt.

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Although there is no problem if grease gets on the belt, applying grease to the belt is not recommended.

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Belts are manufactured using molds.
Sizes not listed in the catalog cannot be manufactured due to lack of molds.

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If the belt is cracked or belt teeth are chipped, replace it immediately. In order to minimize downtime, especially for heavy-duty machines, please include cracks or missing belts in periodic inspections and replace the belt before it is damaged.
Click here for the document.

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Rubber timing belts generate dust even in bareback specifications, which generate little dust. When using the product in a clean room, please take measures such as installing covers around the belt.

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The heat resistance temperature of the standard belt is -30°C to 80°C. Please note, if used outside of room temperature, the life of the product may be shortened. If you require heat resistance for operating temperatures up to 100°C, use a belt with heat-resistant specifications. Please inquire separately for details on heat-resistant specifications.

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Basically, the standard widths listed in the catalog are available. If you require a belt width not listed in the catalog, please contact our sales representatives or distributors.

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Unit weights are listed in the catalog. Please check the catalog.
Click here to download catalog.

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There are two ways to measure belt tension: by deflection load or by sound waves. Use a pencil type tension meter when measuring by deflection load, or use a sonic tension meter Doctor Tension Type IV when measuring by sound waves.
For more information about Dr. Tension Type IV, please click ※MEGA TORQUE GIIP, MEGA TORQUE GⅢ, and Giga Torque GX cannot be measured with deflection load.

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RoHS2 compliant. Please click here for details. If you need a certificate, please contact the dealer where you purchased the product or the nearest sales office that handles belts.

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Improved materials have greatly increased transmission capacity.
In addition, standard pulleys can now be used for MEGA TORQUE GⅢ.

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The belts listed in the part numbers are exclusive belts for a specific machine manufacturer (OEM products), so please purchase genuine parts from the machine manufacturer.

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Durability and service life are greatly reduced.
In addition, the dynamic balance of the pulley must be carefully balanced because of the increased noise level.

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When installing on the inner side of the belt, install on the loose side during running, close to the large pulley.
The inner tension pulley diameter should be larger than the minimum pulley diameter in the catalog.
For outside installation, the belt bending angle should be 140° or more (160° or more for MEGA TORQUE GⅢ and Giga Torque GX) at a position close to the small pulley.
The outer tension pulley diameter should be at least 20% larger than the minimum pulley diameter in the catalog.
Click here for the document.

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Transmission efficiency is almost 100%.
However, since the motor shaft is loaded by the belt tension, power loss may occur and the transmission efficiency may be lower than 100%.

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The minimum shaft hole diameter d (mm) is listed in the pulley dimensions table on the product introduction page of this website.
A pre-hole is machined to allow machining to its minimum shaft hole diameter (H7 tolerance).

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The steel material is mainly S25C, but some free-cutting steel is used.
High strength aluminum alloy is A2017. Castings are FC200 equivalent.

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Flanges only are not available for purchase.

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Two pieces are attached to pulley shapes A and B. Pulley shape C is provided with 1 piece. Pulley shape W is not provided.
Up to 15 flanges can be attached to each pulley for bar pulleys. Please be sure to specify the number of pieces required when purchasing.

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Standard pulleys are not surface treated, but sintered material pulleys are steam treated.
※Some sizes are not supported.

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Custom-made pulleys are available with customer-specified surface treatment.

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In the past, G 32S2M0100A was prefixed with "G", but now it is prefixed with "P" to make it easier to distinguish it from the belt. There is no change in the specifications.
Notation of past:G 32S2M0100A
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Present notation:P 32S2M0100A

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min=minimum shaft hole diameter
max=maximum shaft hole diameter
Our standard pulleys are shipped with the bottom hole machined. Please use this as a guide when machining by the customer.

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The number of teeth that can be manufactured differs depending on the specifications and shape. Please contact us for details.

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We can produce pulleys as made-to-order pulleys.
If you provide us with a drawing, we will provide you with a quotation through our distributor.

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It can be downloaded from our website. Please download from here.

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There are two types of flange attachment methods: caulking and screw fixing.
For details, please refer to "Flanges" in the timing belt transmission design document.
Click here for the document.

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Some tooth shapes are available. Please contact us for details.

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RoHS2 compliant. Please for details. If you would like to have a certificate issued, please contact the dealer where you purchased the product or the nearest sales office.

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We deal through distributors and do not sell directly. Please contact the distributor.

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Please contact our distributors or use our catalog request form.
You can also download PDF files from our website.

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Heat weld.

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Proper tension varies depending on the conditions of use. The formulas for calculating proper tension are provided in each catalog. Please check each catalog.
For timing belts and V-belts, please use the "Tension Calculator"

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LA/LB/LC types are belts for agricultural machinery. These belts are thinner than standard V-belts and Red Label V-belts (A/B/C types) and are designed to withstand reverse bending.

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The tooth fabric is specially treated to suppress the scattering of rubber powder.