with Grub Screw

GN 2241 Elastomer Jaw Couplings

Elastomer Jaw Couplings GN 2241 thumbnail

Bore code

B	Without keyway
K	With keyway (from d°°1°° = 30)

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d₁	d₂ - d₃ H8 recommended shaft tolerance h7

14	3-3	3-4	3-5	3-6	4-4	4-5	4-6	5-5	5-6	6-6
20	5-5	5-6	5-8	6-6	6-8	8-8	-	-	-	-
30	8-8	8-10	8-12	8-14	10-10	10-12	10-14	12-12	12-14	14-14
40	12-12	12-14	12-15	12-16	14-14	14-15	14-16	15-15	15-16	16-16
55	18-18	18-19	18-20	18-25	19-19	19-20	19-25	20-20	20-25	25-25

Filter combination produces no result.

d₁	d₄	l₁	l₂ recommended shaft insertion depth	l₃	s recommended installation spacing	Tightening torque of the screw in Nm ≈

14	M 3	22	7	3,5	1	0,7
20	M 3	30	10	5	1	0,7
30	M 4	35	11	5,5	1,5	1,7
40	M 5	66	25	8,5	2	4
55	M 6	78	30	10,5	2	7

Filter combination produces no result.

Specification

Hub
AluminumAL
Anodized, natural color

Coupling spider
Thermoplastic polyurethane (TPU)
Temperature resistant up to 60 °C
Hardness
80 Shore A, blueBS
92 Shore A, whiteWS
98 Shore A, redRS

Grub screws

Steel, blackened
For d₂ / d₃ ≤ 4, one grub screw
For d₂ / d₃ > 4, two grub screws

Temperature range: -20 °C up to +60 °C

Highlights - Couplings

Keyway P9 DIN 6885

ISO Fundamental Tolerances

Elastomer Characteristics

RoHS

Accessory

Coupling Spiders GN 2240.1

Information

Elastomer jaw couplings GN 2241 can transmit very high torques while compensating for shaft misalignments and runout tolerances. They are preferred in applications where the focus lies on pure torque and power transmission.

The choice of three coupling spiders with different hardness values allows the properties of the coupling to be optimally matched to the specific requirements. The use of grub screws for clamping and the simple plug-in installation make jaw couplings very easy to assemble.

With the bore code K, the keyway is always integrated into both bores d₂ and d₃.