Master your engineering challenges with shaft couplings from Norelem

From precise torque transmission, vibration damping and motion control, couplings from Norelem can be used in various applications and are readily available in different designs. The full range includes metal bellows couplings, elastomer dog couplings, beam couplings, Oldham-type couplings and rigid couplings.

Shaft couplings connect two shafts and transmit rotary movements and torques from a driving shaft to a driven shaft. The shafts are coupled via a rigid or a flexible connection. Mostly, linear shaft connections are realised with flexible shaft couplings. Shaft couplings are also used to compensate for axial and radial shaft misalignments and angular errors as well as to dampen vibrations and shocks.

Applications for Norelem’s shaft couplings are manifold, as CEO Marcus Schneck explains: “Shaft couplings are used in a wide variety of areas and designs: from simple drives in machine tools, packaging, and textile machines to complex positioning drives in control and regulation technology, we are pleased to make the design and implementation of these processes that little bit easier with our new range of shaft couplings.”

Applications for shaft couplings are divided into two functional areas. On the one hand, there are applications in which the transmission of torque and power is the main focus, for example in pumps, conveyor systems and agitators. On the other hand, there are applications for position and motion control, which are to transmit rotary movements precisely and with positional accuracy, such as in servo and stepper motors for linear axes.

Couplings for any application

Norelem offers shaft couplings as metal bellows couplings and elastomer dog couplings as well as beam couplings, Oldham-type couplings and rigid couplings. The choice of design depends primarily on the power to be transmitted and the connection to be balanced. The type of mounting is also an important factor. For example, there are versions with clamping hubs and removable clamping hubs, which are slotted and split in the case of rigid couplings. Couplings with removable, split clamping hubs can be mounted radially. Shaft and drive do not have to be dismantled for installation or replacement of the coupling.

A massive benefit to any operation, shaft couplings are almost maintenance-free. Only in the case of elastomer dog couplings are the coupling stars, which are made of polyurethane, subject to wear due to ageing and load. However, the stars can be easily replaced without having to replace the entire coupling.

Metal bellows couplings are made of stainless steel and aluminium, with the metal bellows made of stainless steel and the hub made of aluminium and stainless steel. The couplings are mounted with clamping hubs or removable clamping hubs and are available for shaft diameters from 3 to 70 mm, while transmitting torques from 0.5 to 1500 Nm.

Constructed of aluminium and stainless steel with the coupling star being made of polyurethane, elastomer dog couplings can be assembled with the use of clamping hubs or removable clamping hubs. They are available for shaft diameters from 3 to 60 mm and can transmit torques from 0.7 to 525 Nm.

Beam couplings are made of aluminium and stainless steel. They are mounted via clamping hubs or removable clamping hubs. The spring bar couplings are designed for shaft diameters of 3 to 35 mm and torques of 3 to 130 Nm.

Transmitting torques of 1 to 7 Nm, Oldham-type couplings are made of aluminium and can be mounted on shaft diameters from 3 to 14 mm via clamping hubs.

Rigid couplings are made of steel and stainless steel. The mounting method is slotted and split. Torques of 16 to 2250 Nm can be transmitted with shaft diameters of 8 to 85 mm.

norelem Ltd

Innovation Centre
1 Devon Way
B31 2TS

+44 (0)121 222 5320

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