Set Screw Type Flexible Disc Couplings - Jhan Rong Mechanical Ltd.

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Product

Couplings

Product Name

Set Screw Type Flexible Disc Couplings

Model

PH-J

Introduction

Features：

Body : A rigid enclosure integrally made with quality castings, with the gear shaft and holes being machined at once on a high-precision CNC machining center. With high degrees of parallelism, the bearings ensure fine gear meshing, high transmission efficiency and low noise during operation.

Gear : Large gears are made of S45oC or alloy steel undergoing high-frequency induction hardening process; small gears are made of SNCM21 materials going through carburizing process. To minimize loss of thrust, gears are developed with a spiral geometry to limit pressure angles to lower than 20 degrees. The gear geometry makes for improved strength and surface roughness, while helping to avoid losing concentricity during operation. Key shear stress can also be greatly reduced with this design.

Lubrication : Molybdenum disulfide lubricants are splashed onto parts of gears and bearings inside a reducer, to allow for easy maintenance and low consumption of lubricants.

Dimensions/Size Chart

Characteristic Table

【Unit : m/m】

Specification NO	D1D2／Tolerance（H8 )*		K	S	B	E	F	L	M
Specification NO	min	max	K	S	B	E	F	L	M
PH-J20	5	9.525	27	5	10.45	0.7	9.3	30.2	M3
PH-J30	6	14	35	5.5	11.6	1	11.8	35	M4
PH-J40	8	20	40	12.5	25.5	1.5	15	66	M5
PH-J55	10	28	45	15.5	30.2	1.2	17.6	78	M6
PH-J65	12	35	56	17.5	35.7	2	18.6	90	M8
PH-J80	16	45	68	23	46.3	2	21.4	114	M8
PH-J95	20	55	82	25.5	51.5	2	23	126	M10

【Material: Aluminum】

Specification NO	Conventional Torque (N.m)	Ultimate Torque (N.m)	Eccentric (mm)	Declination （Degree）	Displacement (mm)	Limit Speed (rpm)	Torsion Coefficient (N.m/rad)	Moment of Inertia (kg.m²)	Weight (g)
PH-J20	5	10	0.1	1	±0.8	19000	55	1.1 × 10^-6	20
PH-J30	12.5	25	0.1	1	±1.0	13000	135	5.9 × 10^-6	40
PH-J40	17	34	0.1	1	±1.2	9600	1100	39 × 10^-6	150
PH-J55	60	120	0.1	1	±1.4	7000	3200	170 × 10^-6	350
PH-J65	160	320	0.1	1	±1.5	5900	4900	380 × 10^-6	500
PH-J80	325	650	0.1	1	±1.8	4800	7400	1120 × 10^-6	1000
PH-J95	450	900	0.1	1	±2.0	3600	14000	1900 × 10^-6	1500

【Features : High rigidity and torque, low inertia and backlash-free, suitable for precision positioning and transmission of servo motors, with telescopic and vibration-resistance functions】