Research & development
to constantly improve
driveline technology.

This includes the N-EUPEX^® modular system which is continuously growing and, with its detailed solutions, providing users with a wide range of sustainable options for making their machines and systems even more reliable, robust and efficient.

N-EUPEX® rated torque: up to 85,000 Nm,
ATEX Directive for:
II 2G Ex h IIC T6 ... T4 Gb X
II 2D Ex h IIIC T85 °C ... 110 °C Db X
I M2 Ex h Mb X

» Torque limiter for more safety in the drivetrain

The new N-EUPEX ERN coupling is equipped with a torque limiter, which provides even more security in the drivetrain in many applications. Protect mechanical equipment, or its work, from damage from mechanical overload. Eliminates the need to replace potentially expensive spare parts, reducing long downtimes of the drivetrain.

» Clamping elements as a practical shaft-hub connection

Shaft connected to the coupling hub via a clamping connection without a feather key.In contrast to the feather key connection, the usual heating of the hub parts before tightening is not required. The hubs are very easy to remove during disassembly after the clamping screws of the clamping elements have been loosened, restoring sufficient play in the connection between the shaft and coupling. No connecting machine components have to be moved, which reducing the time required and machine downtime. Additional tools such as mechanical three-arm pullers are not required.

» Double-cardanic coupling as “short version”

Following the launch of the N-EUPEX DK (see below) as a double-cardanic coupling type, the DKS type is the shortest possible double-cardanic solution on the market. Shortened overall length of the double-cardanic coupling and reduced costs. Making it easier to replace single-joint couplings with the double-cardanic design in problematic drives.

» Double-cardanic coupling N-EUPEX DK

The double-cardanic design compensates for not only a greater range of shaft angle offsets, but also a considerably greater radial offset so that shaft ends can be connected in a manner that offers the drive greater protection. With this two-joint version, compensation for radial offset that occurs between the shaft ends is enabled by a corresponding angle of inclination in the elastomer joints. This increases the range of possible radial offset by more than a multiple of four. Depending on the coupling length and size, it enables compensation for a radial offset of up to 3 mm. The coupling type "DK" makes use of not just one, but two series of elastomer elements, which guarantees increased damping over the entire drive train. The spacer, made of aluminum with a joined pocket part made of gray cast iron, comes in standard increments for shaft spacing from 100 mm to 250 mm, so its length can be adapted to the customer's design.

» Split hub

With the split hub, assembly and disassembly are simple and time saving, requiring only that the two half shells be connected or separated. The coupled drive and work machines do not have to be moved. The half shells in the parallel keyway are split. When the clamping screws are tightened, the half shells are centred above the parallel key, which guarantees that the halves are positioned properly. The keyed joint is constructed so that there is no backlash.

The name "EUPEX" comes from ancient Greek meaning "well connected.”

Link to: full N-Eupex details including technical specification catalogue

Mechanical power transmission couplings . . .

1) What is your application?

2) Which power transmission coupling would best serve your purpose?
‍
3) Which size & specification of coupling will safely and cost effectively fulfill your requirements?

Link to: all coupling types in the range

There are a range of factors when selecting the most suitable coupling for your application.

Contacting jbj Techniques for helpful, friendly advice is definitely a good idea. Before doing so why not be prepared with some useful information first.

The range of Flender couplings showing the different types in a selection criteria, quick reference grid.

This helpful guide covers many considerations in the selection of the right coupling for mechanical power transmission.