PUFlex GS Compact Couplings

Hub Material: Aluminium

Spider material: Polyurethane.

Bore Tolerance: H7 by default. Other Tolerance and Keyways are available on request.

00 : Size of Coupling
XX and YY : Both side inner diameters.

Shaft Encoders
Tacho-generators
Servo Motors
Stepper Motors
Ball-screws
CNC machines
X-Y slides
Medical Equipment’s
Precise Spindles,
and much more precise backlash-free motion and power transmission applications.

PUFLEX GS hubs are available in Aluminium and Steel Material.
PUFLEX GS sizes from 9 to 38 are made from Aluminium Alloy material.
PUFLEX GS sizes from 42 to 65 are made from Steel.
PUFLEX GS hubs are manufactured with high precision machining.
The jaws are machined with concave shape and entry chamfer for easy assembly.
The concave shape in jaws of hub and the convex shape on the polyurethane spider allows for better angular, parallel and axial misalignment.
These hubs are available in un-bored, pilot bored, finish bore & key-ways, and with different styles of clamping arrangements as per customer requirements.

PUFLEX GS spiders are manufactured from high grade polyurethane.
PUFLEX GS are available in three different hardness as 80 Shore A, 92 Shore A, and 98 Shore A. This different hardness’s are made available to suit different applications.

The details are as below.

Spider Type Shore Hardness	Colour	Material	Temperature Range ° C		Available sizes	Application
Spider Type Shore Hardness	Colour	Material	Normal working	Maximum	Available sizes	Application
80 Shore A	Blue	Polyurethane	from -50 to + 80	from -60 to + 120	PUFlex 5 to 24	Low torque, more mis-alignment
92 Shore A	Yellow	Polyurethane	from -40 to + 90	from -50 to + 120	PUFlex 5 to 55	Medium torque, medium mis-alignment
98 Shore A	Red	Polyurethane	from -30 to + 90	from -40 to + 120	PUFlex 5 to 65	More torque, less mis-alignment

Size	Bore sizes mm		Overall Dimensions mm								Clamping Screw
	Min.	Max.	Outer Dia.	Total Length	Spider ID	Hub Length	Space Betⁿ Hubs	Spider Width	Isolation Gap	Spider Wall Thickness	Screw Size	Tightening Torque
	d1	d2	D	L	d3	l1 & l2	E	b	g	a		Ts Nm
7	3	7	14	18	—	5	8	6	1	6	M2	0.43
9	4	10	20	24	7	7	10	8	1	1.5	M2.5	0.85
12	4	12	25	26	8.5	7	12	10	1	3.5	M3	1.5
14	6	14	30	32	10.5	9.5	13	10	1.5	2	M4	1.5
19	8	20	40	50	18	17	16	12	2	3	M6	10.5
24	11	32	55	58	27	20	18	14	2	3	M6	10.5
28	15	38	65	62	30	21	20	15	2.5	4	M8	25
38	20	48	80	86	38	31	24	18	3	4	M10	70
42	25	51	95	94	46	34	26	20	3	4	M12	120
48	28	55	105	110	51	41	28	21	3.5	4	M12	120

Size PUFlex GS	Spider Hardness Shore A	Rated Torque Nm	Max. RPM	Dynamic Torsional Stiffness Nm/rad	Radial Stiffness N/mm	Max. Shaft Misalignment			Weight Kg	Moment of Inertia g m²
Size PUFlex GS	Spider Hardness Shore A	Rated Torque Nm	Max. RPM	Dynamic Torsional Stiffness Nm/rad	Radial Stiffness N/mm	Axial mm	Radial mm	Angular º degree	Weight Kg	Moment of Inertia g m²
7	80	0.7	27000	26	114	+0.6 to -0.3	0.15	1.1	0.006	0.00018
	92	1.2		43	219		0.1	1
	98	2		69	421		0.06	0.9
9	80	1.8	19000	52	125	+0.8 to -0.4	0.19	1.1	0.015	0.00085
	92	3		95	262		0.13	1
	98	5		155	518		0.08	0.9
12	80	3	15200	252	274	+0.9 to -0.4	0.2	1.1	0.023	0.00221
	92	5		482	470		0.14	1
	98	9		718	846		0.08	0.9
14	80	4	12700	180	153	+1.0 to -0.5	0.21	1.1	0.045	0.0166
	92	7.5		344	336		0.15	1
	98	12.5		513	604		0.09	0.9
19	80	4.9	9550	1030	582	+1.2 to -0.5	0.15	1.1	0.14	0.0311
	92	10		1720	1120		0.1	1
	98	17		2580	2010		0.06	0.9
24	92	35	6950	4296	1480	+1.4 to -0.5	0.14	1	0.27	0.12
24	98	60	6950	6189	2560	+1.4 to -0.5	0.1	0.9	0.27	0.12
28	92	95	5850	6876	1780	+1.5 to -0.7	0.11	1	0.43	0.26
28	98	160	5850	10314	3200	+1.5 to -0.7	0.08	0.9	0.43	0.26
38	92	190	4750	13752	2350	+1.8 to -0.7	0.17	1	0.89	0.83
38	98	325	4750	21486	4400	+1.8 to -0.7	0.12	0.9	0.89	0.83
42	92	265	4000	14490	2430	+2.0 to -1.0	0.19	1	1.43	1.87
42	98	450	4000	48000	5570	+2.0 to -1.0	0.14	0.9	1.43	1.87
48	92	310	3600	18055	2580	+2.1 to -1.0	0.23	1	2.02	3.22
48	98	525	3600	55925	5930	+2.1 to -1.0	0.16	0.9	2.02	3.22

OUR PRODUCTS

KULKARNI TRANSPOWER PVT. LTD.

B-103, Prestige point,
Near Dhariwal Institute,
Warje, Pune -411058

Mobile: 91 0-9422007155 / 9764444391

E-mail: sales@ktppl.com

GSTIN: 27AAFCK1110M1ZP