QD bushing DODGE 121187

DODGE 121187 is a qD bushing reference, within Power transmission. Request a quote for 121187 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The QD bushing is a tapered fastening element that mounts between the shaft and the hub of pulleys, gears, sprockets or couplings. It is installed with screws that, when tightened, compress the bushing onto the shaft and lock it against the hub, achieving a firm and removable connection without additional machining. It is a key part in power transmission because it allows torque transmission, centers the hub and simplifies component replacement in industrial equipment.

The DODGE QD designation is organized by bushing size, and each size accepts a range of shaft diameters. In the series codes, such as 117043, 117049, 119894 or 119899, the number identifies the combination of bushing size and shaft diameter. The SDS, SD and QD series group the different sizes according to the torque capacity and the hub diameter they support. To choose the right one, the governing data are the shaft diameter and the hub size of the equipment.

In Argentine industry, QD bushings are used in transmission pulleys, gears, chain sprockets, couplings and hubs of process equipment. They appear in food, cement, steel, paper, mining plants and in material handling systems. They are also common in pumping, ventilation and conveying equipment, where a tapered connection is needed that withstands loads and allows the hub to be removed without damaging the shaft.

To select a QD bushing, take into account the shaft diameter, the hub size, the torque to be transmitted and the type of load. Mounting is done with the fastening screws, tightening evenly and respecting the recommended torque for the size. Cleaning the tapered surfaces, lubricating the threads and aligning the shaft and hub are key to avoiding slipping and vibration. If the equipment works with dust or humidity, it is advisable to check the sealing and protection of the assembly.

DODGE QD bushings are interchangeable with those of other brands that use the same taper mounting standard, as long as the size, shaft diameter and number of screws match. This compatibility facilitates replacement in existing equipment and allows combining hubs and bushings from different origins. To confirm the equivalence, the safest approach is to compare the original bushing code with the shaft and hub measurements of the equipment.

If you need a QD bushing for a pulley, a gear or a coupling, send the code or model by WhatsApp to MR Accesorios Industriales. We will quote the corresponding DODGE bushing and indicate the compatible alternative if the equipment is another brand. With more than 80 years in Buenos Aires, Argentina, we support the selection and replacement of power transmission components.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.