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SE151 Elastic couplings

Reference : 622108

The SE151 coupling is available in two versions:

hollow hub or solid hub. The resilient element consists of a natural rubber body, an outer steel ring bonded to the rubber, and a triangular hub: either hollow and bonded to the rubber, onto which the hub is fitted, or solid to accommodate a splined or keyed shaft. The steel hub is fitted with a round flange.

Flexible Couplings

Paulstra Range

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Made in France

Hutchinson

Reference

Out of stock

€113.08 tax excl. | €135.70 TTC

Unit price : €113.08 tax excl. | €135.70 tax incl.

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Description

What is the SE151 flexible coupling?

The Hutchinson Paulstra SE151, also known as CARDAFLEX®, is a flexible coupling designed to transmit torque while providing flexibility within the transmission.

It is available in two configurations: hollow hub or solid hub. Its resilient element combines a natural rubber body, an outer steel ring bonded to the rubber and a triangular hub.

Nominal torque: from 30 to 520 N.m depending on the reference.
Maximum torque: up to 1,040 N.m.
Maximum speed: up to 7,000 rpm.
Versions: hollow hub or solid hub.
Manufactured in: France.

Hutchinson Paulstra SE151 Cardaflex flexible coupling

What are the advantages of the CARDAFLEX®?

✅ Fail-safe design: designed to provide reliable mechanical transmission.

✅ Suitable for high speeds: up to 7,000 rpm depending on the reference.

✅ Low angular stiffness: the coupling retains flexibility to accommodate alignment errors.

✅ Compact design: overall dimensions are particularly reduced on solid-hub versions.

✅ Flywheel mounting: the outer ring of the resilient element can be centred directly on the flywheel of one of the machines to be coupled.

What is the difference between the hollow hub and solid hub versions?

Version	Design	Installation
Hollow hub	Hollow triangular hub bonded to the rubber	A triangular-flange hub is fitted to the coupling hub
Solid hub	Solid triangular hub integrated into the resilient element	The hub directly accommodates a splined or keyed shaft

What applications is the SE151 suitable for?

The CARDAFLEX® is suitable for industrial transmissions requiring a compact coupling capable of operating at high speeds. It is particularly used for generator sets, machine tools, engines and motor-driven pumps.

SE151 coupling dimensions

The technical data sheet distinguishes between the dimensional characteristics of the hollow hub and solid hub versions. The diagram below identifies the different dimensions.

SE151 Cardaflex hollow hub and solid hub coupling dimensions

Dimensions – Hollow Hub

Reference	C1 (mm)	C2 (mm)	A (mm)	B (mm)	D1 (mm)	D2 (mm)	E1 (mm)	E2 (mm)	E3 (mm)	F (mm)	G (mm)	J (mm)	K (mm)	L (mm)	M (mm)
622311	9 to 20	9 to 30	120	125	32	50	44	40	35	45	100	6	8	52	30
622315	9 to 32	9 to 42	155	155	49	60	55	50	43	55	130	10	12	76	42
622320	11 to 42	11 to 56	205	203	67	80	71	65	57	73	175	12	16	100	56

Dimensions – Solid Hub

Reference	C2 (mm)	C3 (mm)	A (mm)	B (mm)	D2 (mm)	E2 (mm)	E3 (mm)	F (mm)	G (mm)	J (mm)	K (mm)	L (mm)
622401	7 to 24	10 to 21	85	60	40	28	26	32	68	6	7	42
622402	7 to 28	16 to 28	105	70	45	30	28	40	86	6	8	52
622403	9 to 30	17 to 28	120	85	50	40	35	45	100	6	8	52
622404	9 to 36	18 to 36	130	95	55	45	35	50	108	8	10	64
622405	9 to 42	22 to 42	155	105	60	50	43	55	130	10	12	76
622406	11 to 56	30 to 56	205	138	80	65	57	73	175	12	16	100

SE151 references and performance

The references below correspond to the complete couplings currently listed in the price list.

Reference	Version	Nominal Torque (N.m)	Max. Torque (N.m)	Max. Speed (rpm)	C1 (mm)	C2 (mm)	C3 (mm)	Weight (kg)
622311	Hollow hub	80	160	6,000	9 to 20	9 to 30	—	2.3
622315	Hollow hub	160	320	5,500	9 to 32	9 to 42	—	4.5
622320	Hollow hub	520	1,040	4,500	11 to 42	11 to 56	—	10.7
622401	Solid hub	30	60	7,000	—	7 to 24	10 to 21	0.4
622402	Solid hub	50	100	6,500	—	7 to 28	16 to 28	0.7
622403	Solid hub	80	160	6,000	—	9 to 30	17 to 28	1
622404	Solid hub	120	240	5,500	—	9 to 36	18 to 36	1.2
622405	Solid hub	160	320	5,500	—	9 to 42	22 to 42	2.3
622406	Solid hub	520	1,040	4,500	—	11 to 56	30 to 56	5

Note: the maximum torque corresponds to an infrequent, non-periodic starting torque. Replacement resilient elements are also available separately.

CARDAFLEX® technical characteristics

Nominal Torque (N.m)	Vibratory Torque (N.m)	Angle at TCN (°)	Axial Stiffness (daN/mm)	Radial Stiffness (daN/mm)	Torsional Stiffness (m.kN/rad.)	Angular Stiffness (m.kN/rad.)
30	15	6	30	100	0.286	0.114
50	25	7	16	65	0.400	0.114
80	40	5	30	90	0.860	0.230
120	60	8	25	80	0.860	0.230
160	80	5	32	90	1.720	0.460
520	260	7	40	150	4	1.140

How to install the SE151 coupling?

The installation procedure varies depending on the version selected.

Fit the round-flange hub onto the shaft of the first machine.
For a hollow hub version, fit the triangular-flange hub onto the other shaft.
For a solid hub version, fit the resilient element directly onto the other shaft.
Then assemble the round-flange hub and the resilient element.

Paulstra example: connection between an internal combustion engine and a hydraulic pump, with installation on a keyed shaft and pulley.

How to choose your SE151 coupling?

Selection mainly depends on the torque to be transmitted, rotational speed, shaft dimensions and the required installation configuration.

Choose a hollow hub when the installation requires a separate triangular-flange hub.
Choose a solid hub to directly accommodate a splined or keyed shaft and reduce overall dimensions.
Then check that the nominal torque, maximum speed and bore dimensions are suitable for your transmission.

View the SE151 technical data sheet

Discover Hutchinson Paulstra flexible couplings

Discover the CARDAFLEX® SE151 as well as our complete range of flexible couplings and Hutchinson Paulstra solutions for torque transmission and vibration isolation.

Need advice?

Our technical team can help you determine the CARDAFLEX® best suited to the torque, rotational speed and installation configuration of your transmission.

Have a project? Contact us!

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Technical data sheet

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