D-3 Max Dynamic Coupling Hub, Straight Blank Bore, 34 mm Max Bore

Straight blank bore hubs for Max Dynamic couplings, in sizes D-2 to D-100. Max Dynamic couplings are made of two hubs with a polyurethane element between them. The coupling protects the equipment against twist, impact and abrasion, and it is replaced and maintained without oil or grease. The simple structure means the element can be replaced without separating the motor or the connected machine. The polyurethane gives good water and chemical resistance and a very flexible, elastic action, with less noise.

The hub has a blank bore, so you can have it bored and keywayed to suit your shaft up to the maximum bore listed for the size. A complete coupling uses two hubs and one polyurethane element. Each listing is one hub.

Where this product is used

• Pump, fan and blower drives
• Compressor and generator drives
• Conveyor, elevator, crane and hoist drives
• Mixers, agitators and drives in food, brewing, paper, rubber, steel, textile and aggregate plants

Features

• Straight blank bore hub, bore to suit up to the listed maximum
• Polyurethane element with good water and chemical resistance
• Sizes D-2 to D-100, bores to 171 mm
• Torque, maximum speed and power rating listed for every size
• Element can be replaced without separating the motor or the machine

Key specifications

Sizes available

Selecting and fitting

Choose the size from the torque and the shaft size, and apply a service factor for the type of machine. The torque is listed in kgf.m, and one kgf.m is about 9.81 Nm. A complete coupling needs two hubs and one element. The other Max Dynamic parts are Max Dynamic Coupling Taperlock Hub, Max Dynamic Coupling Polyurethane Element, Max Dynamic Coupling Polyurethane Spacer.

Fit the bolts in the sequence shown in the manufacturer catalogue and use a high-tension bolt. Align the two shafts as closely as you can before fitting the coupling, and check the alignment again once the coupling is fitted. Good alignment gives the longest life, whatever the coupling type.

Dimensions are as listed in the manufacturer catalogue and are for reference. Contact AIMS to confirm a measurement if it is critical to your application.