| Brand Name: | GQZ or Other famous brand |
| Model Number: | Z4 Series |
| MOQ: | 5pcs |
Expansion coupling sleeve is an advanced basic component widely used in the international market for mechanical coupling under heavy load. In the connection of shaft and wheel, it is a keyless coupling device to realise load transmission by tightening the pressure and friction generated between the accommodating surfaces of high-strength bolts.
| Applicable Industries | Automotive.tractor.construction Machinery.rolling Mill |
| Place of Origin | China |
| Type | BALL |
| Model Number | Z2 series |
| Brand Name | GQZ or OEM |
| Seals Type | Open |
| Material | Chrome Steel |
| Outside diameter | 200-300mm |
| Bore size | 270-390mm |
| Feature | Long Life |
| Certificate | ISO9001:2008 |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Precision | P0,P5,P6 |
| Service | OEM Service |
| Stock | Rich |
| Package | Original Packing |
| Dimentions | Hexagon socket head cap screws | Rated burden | Pressure on the joint surface between the expansion sleeve and the shaft | Pressure on the expansion sleeve-hub interface | Screw tightening torque | Weight | ||||||
| d | D | l | L | L1 | d1 | n | Axial force Ft(kN) | Torque Mt(kN.m) | pf(N/mm2) | pf1(N/mm2) | MA(N.m) | W.t(kg) |
| 200 | 270 | 88 | 94 | 110 | M16 | 24 | 1050 | 105 | 242 | 179 | 355 | 18.8 |
| 210 | 290 | 110 | 116 | 134 | M18 | 20 | 1118 | 117.3 | 197 | 143 | 485 | 23 |
| 220 | 300 | 110 | 116 | 134 | M18 | 21 | 1120 | 123 | 189 | 138 | 485 | 27.7 |
| 240 | 320 | 110 | 116 | 134 | M18 | 24 | 1280 | 153 | 198 | 148 | 485 | 29.8 |
| 250 | 330 | 110 | 116 | 134 | M18 | 27 | 1282 | 160.2 | 205 | 157 | 485 | 31 |
| 260 | 340 | 110 | 116 | 134 | M18 | 27 | 1430 | 186 | 205 | 157 | 485 | 32 |
| 280 | 370 | 130 | 136 | 156 | M20 | 24 | 1650 | 230 | 192 | 145 | 690 | 46 |
| 300 | 390 | 130 | 136 | 156 | M20 | 24 | 1650 | 245 | 179 | 138 | 690 | 49 |
Harsh environments, characterized by moisture, dust, and extreme temperatures, pose significant challenges. Corrosion Resistance: Exposure to moisture can lead to corrosion, affecting the sleeve's performance. Solution: For operations in harsh environments, select adapter sleeves made from corrosion-resistant materials or consider protective coatings to enhance the durability of adapter sleeves.
Effective maintenance is crucial for maximizing lifespan and performance. Inspection Schedules: Establishing routine inspection schedules helps detect potential issues early. Lubrication Needs: Proper lubrication ensures smooth operation and reduces wear. Solution: To maintain systems with adapter sleeves effectively: Implement a comprehensive maintenance schedule including cleaning, inspection, and re-lubrication of components around the adapter sleeve. Keep detailed records of all maintenance activities to track the condition and performance of adapter sleeves over time.
High-speed applications require careful selection to manage heat generation and vibration. Heat Management: High speeds can generate significant heat, leading to increased wear. Solution: For high-speed applications, choose adapter sleeves designed for enhanced speed capabilities with optimized internal geometries. Ensure adequate lubrication and cooling systems are in place to support the adapter sleeves.