HB Couplings

Flexible Jaw Couplings utilize the flexibility and resilience of a polyurethane element between aluminum hubs. This combination allows high torque to be transmitted with little or no backlash, even where there is significant angular and/or parallel misalignment.

Model	ØD	L	ØB1	ØB2	ØB1/ØB2 min/max bore	L1	Bolt	Torque	SKU	Drawing / Dimensions
HB-2534
HB-2534	25mm	34mm	6 - 12	6 - 12	5-12mm	11mm	M3	5Nm	1072001
HB-3042
HB-3042	30mm	42mm	8 - 15	8 - 15	5-15mm	15mm	M4	9Nm	1072002
Pictures, dimensions,table data and technical drawings of this product are made with reasonable care and liability is excluded for the accuracy and correctness of this data.

  About Jaw Couplings

Jaw Couplings are one of the first and still most widely used elastomer couplings in the world due to their inherent simplicity. Two identical hubs with 3 face lugs are connected through a star shaped element, sometimes referred to as an insert or spider. The 3 piece design makes them simple to work with and popular on applications such as pumps, fans, blowers and compressors.Jaw Couplings are one of the first and still most widely used elastomer couplings in the world due to their inherent simplicity. Two identical hubs with 3 face lugs are connected through a star shaped element, sometimes referred to as an insert or spider.

The 3 piece design makes them simple to work with and popular on applications such as pumps, fans, blowers and compressors. Jaw Couplings require no lubrication and provide high reliability for light to medium duty applications with good alignment of equipment and no requirement for torsional dampening. In normal operating conditions there is no metal to metal contact so the life of the hubs is virtually indefinite. However, in a catastrophic failure of the element the load would still be carried by the hubs providing a degree of failure protection. Jaw couplings are resistant to oil, dirt, moisture and grease.Specific element materials are available to achieve maximum performance for the operating conditions.

The standard element material is NBR (N)-'Synthetic Rubber'. It is highly flexible, oil resistant and the torsionally softest of the element options. It has a temperature operating range suitable for most industrial applications and allows for up to 1 degree misalignment capacity of the connected shafts. NBR is the most economically priced option.