RSK-ltz Elastic Pin Coupling with Brake Wheel Direct Efficient Braking with Fast Response-Jiangsu Rokang Heavy Industry Technology Co., Ltd.

Specification

Key Characteristics

High Functional Integration, Saves Space and Cost

Combines the coupling and brake wheel into one unit, eliminating the need for a separate brake wheel mounting hub, connecting key, and alignment procedure. This greatly simplifies the axial layout of the drive train and reduces overall manufacturing cost and installation complexity

Direct, Efficient Braking with Fast Response

The brake wheel is rigidly connected to the drive shaft. The braking torque generated by the brake (typically a hydraulic or electromagnetic disc brake) acts directly on the transmission system without intermediate loss, ensuring fast braking response, safety, and reliability

Possesses Good Transmission Performance

Inherits the advantages of the LT type coupling: can compensate for certain axial, radial, and angular misalignment; the rubber flexible bushes provide excellent vibration damping and cushioning, protecting motors and equipment from shock; requires no lubrication, simplifying maintenance

Standardization and Strong Interchangeability

As a national standard product, its dimensions, torque ratings, and brake wheel specifications are serialized, facilitating selection, procurement, spare parts stocking, and good compatibility with standard brakes

Primary Application Fields

Overhead Cranes, Gantry Cranes: Travel mechanisms of the bridge and trolley, and hoisting mechanisms of small cranes

Electric Hoists: Transmission and braking of the drive wheel assembly

Belt Conveyors, Bucket Elevators: Input shaft end of the drive unit

Light Industrial, Warehousing, and Logistics Equipment: Various conveying and slewing mechanisms requiring positioning and braking

Model	Nominal Torque (N·m)	Permissible rotational speed (rpm)	Shaft hole diameter (mm)	Shaft hole length (mm)				D	B	B₁	A	Allowable compensation amount			Moment of Inertia (kg·m)	Weight (kg)
				Y-shaped	J、J₁、Z-shaped							Radial		Angle direction
				L	L₁	L	mm
RSK-LTZ5	125	3800	25、28	62	44	62	200	130	85	42	45	5	0.3	1°30'	0.0416	13.38
			30、32、35	82	60	82
RSK-LTZ6	250	3000	32、35、38	82	60	82	250	160	105	62	45	5	0.3	1°00'	0.1053	21.25
			40、42	112	84	112
RSK-LTZ7	500	2400	40、42、45、48	112	84	112	315	190	132	89	45	5	0.3	1°00'	0.2522	35
RSK-LTZ8	710	2400	45、48、50、55、56	112	84	112	315	224	132	78	65	5	0.4	1°00'	0.3470	45.14
			60、63	142	107	142
RSK-LTZ9	1000	2400	50、55、56	112	84	112	315	250	168	78	65	6	0.4	1°00'	0.4070	58.61
			60、63、65、70	142	107	142
RSK-LTZ10	2000	1900	63、65、70、71、75	142	107	142	400	315	168	102	80	8	0.4	1°00'	1.3050	100.3
			80、85、90、95	172	132	172
RSK-LTZ11	4000	1500	80、85、90、95	172	132	172	500	400	210	127	100	10	0.5	0°30'	4.330	198.73
			100、110	212	167	212
RSK-LTZ12	8000	1200	100、110、120、125	212	167	212	630	475	265	163	130	12	0.5	0°30'	12.49	370.6
			130	252	202	252
RSK-LTZ13	16000	1000	120、125	212	167	212	710	600	298	174	180	14	0.6	0°30°	30.48	641.13
			130、140、150	252	202	252
			160、170	302	242	302

Describe

Basic Structure

The RSK-ltz type can be viewed as a functional composite of a "Type RSK-ltz Coupling" and a "Brake Wheel". Its main components include:

Brake Wheel Half-Coupling: The key distinguishing component. Typically made of high-strength gray cast iron or cast steel. Its outer circumference is machined to provide a high-precision, low-surface-roughness cylindrical friction surface serving as the brake disc for a disc brake. The wheel rim often features cooling vents and stiffening ribs to improve heat dissipation and increase rigidity.

The Other Half-Coupling: A standard half-coupling (flange type) of the regular RSK-lt type.

Pins and Flexible Bushes: Identical to the RSK-lt type. The pins (made of 45# steel) are fixed at one end to the brake wheel half-coupling. The other end passes through rubber or polyurethane flexible bushes and inserts into the holes of the other half-coupling. The flexible bushes provide force transmission, cushioning, and compensation.

Sealing and Protective Components: Including dust covers, sealing rings, etc., used to protect the brake wheel friction surface from oil and dust contamination.

Key Characteristics

High Functional Integration, Saves Space and Cost:

Direct, Efficient Braking with Fast Response:

Possesses Good Transmission Performance:

Standardization and Strong Interchangeability:

Primary Application Fields

The RSK-ltz type is the "standard configuration for small and medium-sized lifting and transportation machinery", particularly suitable for:

Overhead Cranes, Gantry Cranes: Travel mechanisms of the bridge and trolley, and hoisting mechanisms of small cranes.

Electric Hoists: Transmission and braking of the drive wheel assembly.

Belt Conveyors, Bucket Elevators: Input shaft end of the drive unit.

Light Industrial, Warehousing, and Logistics Equipment: Various conveying and slewing mechanisms requiring positioning and braking.