PENCOflex - Elastic coupling

Product Description

The PENCOflex coupling is made up of two (female and male) cast iron hubs onto which pins fitted with rubber bushes are mounted.

The pins, made up of ground steel, have a cylindrical shape up to size 460. Pins of sizes 145 to 200 are axially fastened by a circlips and a nut; those of sizes 235 to 460 by two circlips.

Pins over size 510 are tapered and are attached by a screw and washer. A circlips restricts the bush translational motion.

The rubber bushes are vulcanized onto wear-resisting brass liners which are mounted on the pins with a clearance. This allows them to rotate freely and move slightly lengthwise. The stress exerted onto the bearings is thus significantly reduced. A unique scalloped barrel shape of the bushes guarantees a uniform distribution of loads, even in case of misalignment, thus limiting the bending moment resulting from the radial force on the pins. This ensures increased durability of both bushes and pins

Dynamic behavior

The combined elasticity and damping capacity of the rubber bushes reduces both shock loads and critical velocity. Compressed by an increasing torque, the bushes become stiffer due to the scalloping, thereby reducing the resonance effect at critical speeds.

Arrangement PB: with brake drum

This version is made up of two parts:

• The standard female hub
• A male hub fitted with a brake drum. Its single block design allows a high security level and then use as dynamic braking system

Arrangement PD: with brake disc

This version is made up of four parts:

• The standard female hub
• An intermediate part made of alloy steel
• A brake hub also made of Alloy Steel
• A brake disc mounted between the latter two parts (ventilated brake disk also available)

Design includes high security features that allows strongly solicited braking.

NB: It is up to the customer to check that the correct size of brake drum or disk is used. PTP INDUSTRY cannot be held responsible for incorrect selection of brake system.

Documentation