Z5 Expansion Sleeve for Ultra High Torque Transmission with High Dynamic Load Capacity High Rigidity and Strong Stability-Jiangsu Rokang Heavy Industry Technology Co., Ltd.

Specification

Size（mm）	Dimensions (mm)		Rated load		Contact pressure (MPa)		Locking screw	Weight (Approx. kg)
Size（mm）	L1	L2	Axial (kN)	Torque (N·m)	Shaft (MPa)	Hub (MPa)	Tightening (N·m)	Weight (Approx. kg)
100×145×65	60	77	291	14540	184	133	145	4.1
110×155×65	60	77	337	16300	180	127	145	4.4
120×165×65	60	77	382	20000	184	133	145	4.8
130×180×74	68	86	424	27500	189	136	145	6.5
140×190×74	68	86	514	38100	225	165	145	7
150×200×74	68	86	545	38600	198	145	145	7.4
160×210×74	68	86	636	50900	230	179	145	7.8
170×225×81	75	95	676	60900	217	164	230	10
180×235×81	75	95	719	61200	193	147	230	10.6
190×250×94	88	108	816	77500	183	139	230	14.3
200×260×94	88	108	920	97000	211	135	230	15
210×275×104	98	120	980	99000	178	162	355	17.5
220×285×104	98	120	990	108000	181	140	355	19.8
240×305×104	98	120	1300	156000	220	174	355	21.4
250×315×104	98	120	1340	168000	215	170	355	22
260×325×104	98	120	1420	185000	224	179	355	23
280×355×126	120	144	1560	218000	184	146	475	35.2
300×375×126	120	144	1600	241000	178	142	475	37.4
320×405×142	135	162	2050	330000	184	146	475	513
340×425×142	135	162	2080	354000	176	140	690	54.1
360×455×165	158	187	2620	480000	176	139	930	75.4
380×475×165	158	187	2670	498000	163	130	930	79
400×495×165	158	187	2750	551000	163	132	930	82.8
420×515×165	158	187	3170	646000	179	146	930	86.5
450×555×180	172	204	3740	861000	177	143	1200	112
480×585×180	172	204	3990	957000	177	144	1200	119
500×605×180	172	204	3990	998000	170	140	1200	123
530×640×200	190	227	4110	1088000	149	124	1600	151
560×670×200	190	227	4360	1222000	140	125	1600	160
600×710×200	190	227	4790	1408000	159	126	1600	170

Describe

The Z5 Expansion Sleeve is an advanced shaft-hub connection component engineered for the most demanding torque transmission environments. Designed to perform under extreme dynamic loads, this sleeve offers exceptional rigidity, stability, and operational safety in mechanical power systems that require maximum strength and precision. It is an ideal choice for OEM configurations and custom steel assemblies where performance cannot be compromised.

Key Features and Advantages
Ultra High Torque Capacity
The Z5 sleeve is optimized for transferring exceptionally high torque without slippage, making it suitable for heavy-duty industrial equipment and high-powered drive systems.

Superior Dynamic Load Resistance
Built to withstand fluctuating and impact-rich dynamic loads, this expansion sleeve maintains performance under intensive operating conditions such as high-speed reversing or abrupt torque changes.

High Rigidity for Accurate Positioning
Its structural integrity ensures minimal deformation under load, providing precise shaft alignment and reducing wear on connected components.

Enhanced Operational Stability
The robust clamping mechanism guarantees a secure and stable connection that remains reliable even under vibration, shock, or thermal expansion.

OEM-Compatible and Customizable
The Z5 expansion sleeve can be adapted for specific OEM requirements, with customizable dimensions, surface treatments, and material grades to suit a wide range of industrial configurations.

Simple Installation and Maintenance
Unlike keyways or interference fits, the Z5 uses frictional locking for easy mounting and disassembly, saving time and preserving the integrity of the shaft and hub.

High-Grade Steel Construction
Manufactured from premium alloy steel, the sleeve offers excellent fatigue strength, corrosion resistance, and long-term reliability even in aggressive environments.

Main Applications
Heavy-Duty Gearboxes and Drives
Supports high-power mechanical transmissions in industries such as mining, metallurgy, and cement.

Steel Production Equipment
Ideal for rolling mills, coil processing lines, and high-load transfer systems requiring rigid shaft-to-hub connections.

Pumps, Fans, and Compressors
Ensures reliable torque transmission in applications with varying speeds and intermittent loads.

Large Industrial Automation Systems
Used in robotic arms, rotary actuators, and automated handling systems requiring high stiffness and shock resistance.

Wind Turbines and Renewable Energy Equipment
Offers strong, vibration-resistant coupling under alternating loads and challenging environmental conditions.

With its unmatched torque capacity, structural rigidity, and dynamic load handling, the Z5 Expansion Sleeve delivers high-performance reliability for modern industrial systems. It is the optimal solution for OEMs and engineers seeking a robust, maintenance-friendly coupling method in high-stress mechanical applications.