Chain coupling pitch 3/4 x 7/16″ 18 teeth nominal torque 600Nm vs Elastic coupling RN size 38 max. torque 380Nm nominal torque 190Nm outer diameter 80 mm overall length 114 mm with pilot bore insert 92° shore yellow

Chain coupling pitch 3/4 x 7/16″ 18 teeth nominal torque 600Nm and Elastic coupling RN size 38 max. torque 380Nm nominal torque 190Nm outer diameter 80 mm overall length 114 mm with pilot bore insert 92° shore yellow are compared below on the data published by their sellers — price converted to euros, stock, and every specification either seller discloses. On price, Elastic coupling RN size 38 max. torque 380Nm nominal torque 190Nm outer diameter 80 mm overall length 114 mm with pilot bore insert 92° shore yellow is €53.23 cheaper ($61.80).

Feature-by-feature product comparison

Criterion	Chain coupling pitch 3/4 x 7/16″ 18 teeth nominal torque 600Nm	Elastic coupling RN size 38 max. torque 380Nm nominal torque 190Nm outer diameter 80 mm overall length 114 mm with pilot bore insert 92° shore yellow
Price	$123.23	$61.80cheapest
Seller	MÄDLER	MÄDLER
Availability	In stock	In stock
Rating	—	—
Torque	6 118,2 kg·cm	3 874,9 kg·cm
Weight	4.97 kg	980 g
Bore length	—	45 mm
Bore pilot hole	—	13.6 mm
Coupling type	Elastic. angular/transv./long flexible	Elastic. angular/transv./long flexible
Din iso no	12 B-2	—
Distance between hub and spider	—	3 mm
Distance between the hubs	—	24 mm
Electrically insulating	No	No
Hub diameter	90 mm	66 mm
Hub length up to flange	—	37 mm
Inner diameter spider	—	38 mm
Length of each sprocket	40 mm	—
Material	Steel	Aluminum/Polyurethane
Max bore	—	38 mm
Max misalignment angle	0.5 °	1 °
Max misalignment axial	0.25 mm	1.8 mm
Max misalignment radial	0.2 mm	0.28 mm
Max outer diameter	126.5 mm	—
Max speed	3000 min-1	—
Max speed at 30 m s	—	7100 min-1
Max torque	600 Nm	380 Nm
Min bore diameter	25 mm	—
Min distance for dismantling	—	19 mm
Moment of inertia	0.03010 kgm2	—
Mounting distance over tooth flanks	29.5 mm	—
Nominal torque	—	190 Nm
Outer diameter	—	80 mm
Power speed max.	0.0616 kW/min -1	—
Replacement spider 92 shore part no	—	60 509 238
Replacement spider 98 shore part no	—	60 509 838
Size	—	38
Spider width	—	18 mm
Stainless	No	Yes
Surface	Blank	Blank
Temperature max.	220 °C	90 °C
Temperature min.	-30 °C	-40 °C
Torsional angle at max nm	—	5
Total lenght	—	114 mm
Total length	89.5 mm	—
With keyway	No	No
	View at seller ↗	View at seller ↗

Specifications are extracted automatically from seller data — an empty cell means the seller does not publish that value, not that the product lacks it.

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