DODGE 4A12.0B12.4–SK v-belt pulley

DODGE 4A12.0B12.4–SK is a reference of v-belt pulley, within Power transmission. Request a quote for 4A12.0B12.4–SK via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

Dodge SK series V-belt pulleys are power transmission components mounted on shafts to transmit motion through V-belts. They are used in industrial equipment where speed needs to be adjusted, power distributed among several shafts, or a stable transmission ratio maintained. MR Accesorios Industriales sells this line, and advises you on choosing the pulley that matches your application.

The designation of these pulleys combines two numbers of grooves and diameters: for example, 3A6.6B7.0–SK indicates a pulley with three A grooves with a pitch diameter of 6.6 inches and three B grooves with 7.0 inches. The series includes other combinations of grooves and diameters. The –SK suffix identifies the mounting system or the type of bushing the pulley uses. Combinations such as 3A7.0B7.4–SK or 3A12.0B12.4–SK appear in the series, always with the same logic: first the number and section of grooves, then the dimensions. Knowing how to read this lets you order the exact part number without ambiguity.

These pulleys are used in industrial fans, centrifugal pumps, screw compressors, conveyors and continuous process machines. In the Argentine market they appear in food, textile and chemical plants and in maintenance workshops that replace worn pulleys or modify transmission ratios. They are also used in refrigeration equipment and local exhaust systems, where the pulley must withstand frequent starts and environments with dust or humidity.

To select a V-belt pulley, take into account the belt section (A, B, C as applicable), the number of grooves, the pitch diameter and the type of bushing. Mounting requires cleaning the shaft and the bushing, checking that the grooves are aligned with the drive pulley and applying the recommended tightening torque. Lubrication does not apply to the pulley itself, but it does to the shaft bearing or bushing. Poor alignment accelerates belt wear and generates vibration.

Dodge SK series pulleys interchange with other brands that use taper bushings or equivalent systems, as long as the shaft diameter, the number of grooves and the pitch diameter match. It is not enough for the pulley to be the same size: the type of bushing and the belt standard must be verified. If you need to replace an existing pulley, send us the part number stamped on the part or the measurements taken with a caliper.

MR Accesorios Industriales sells the Dodge line and also manufactures custom pulleys for special applications. If you cannot find the combination you are looking for, write to us on WhatsApp with the part number or model you need: we will send you a quote shortly and indicate the compatible alternative. Our technical team helps you define the right pulley so that your transmission runs smoothly.