Z11 Expansion Sleeve Shaft Locking Assembly โ Precision Shaft-to-Bore Connection
The Z11 expansion sleeve locking assembly delivers high-precision, backlash-free shaft fixation without keys or set screws. Its slim, clamping design evenly distributes contact pressure, minimizing vibrations and wear. Available in bore sizes ร 6โ150 mm with corresponding outer diameters ร 14โ185 mm, it supports torques up to 27 305 Nยทm and axial forces up to 364 kN. Supplied with high-strength DIN 912 (12.9) screws for rapid, reliable mounting and dismounting on motors, gearboxes, conveyors, and CNC spindles.
Technical Specifications for Selected Z11 Variants
| Variant | Bore ร (mm) | Outer ร (mm) | Torque Capacity (Nยทm) | Axial Force (kN) | Contact Pressure (N/mmยฒ) | Locking Screws |
|---|---|---|---|---|---|---|
| Z11-9ร16 | 9 | 16 | 227 | 128 | 10 | M4 ร 12 |
| Z11-24ร34 | 24 | 34 | 255 | 105 | 21 | M6 ร 18 |
| Z11-25ร34 | 25 | 34 | 266 | 100 | 21 | M6 ร 18 |
| Z11-16ร24 | 16 | 24 | 184 | 123 | 16 | M6 ร 18 |
| Z11-11ร18 | 11 | 18 | 186 | 114 | 10 | M4 ร 12 |
| Z11-12ร18 | 12 | 18 | 171 | 114 | 10 | M4 ร 12 |
| Z11-14ร23 | 14 | 23 | 146 | 89 | 10 | M4 ร 12 |
| Z11-15ร24 | 15 | 24 | 196 | 123 | 16 | M6 ร 18 |
| Z11-8ร15 | 8 | 15 | 299 | 159 | 10 | M4 ร 10 |
| Z11-10ร16 | 10 | 16 | 205 | 128 | 10 | M4 ร 12 |
| Z11-20ร28 | 20 | 28 | 213 | 174 | 21 | M6 ร 18 |
| Z11-22ร32 | 22 | 32 | 234 | 114 | 21 | M6 ร 18 |
| Z11-17ร26 | 17 | 26 | 184 | 134 | 21 | M6 ร 18 |
| Z11-18ร26 | 18 | 26 | 184 | 134 | 21 | M6 ร 18 |
| Z11-19ร27 | 19 | 27 | 183 | 129 | 21 | M6 ร 18 |
| Z11-38ร50 | 38 | 50 | 811 | 110 | 43 | M6 ร 18 |
| Z11-40ร53 | 40 | 53 | 959 | 110 | 48 | M6 ร 18 |
| Z11-42ร55 | 42 | 55 | 1 007 | 105 | 48 | M6 ร 18 |
| Z11-28ร39 | 28 | 39 | 373 | 112 | 27 | M6 ร 18 |
| Z11-30ร41 | 30 | 41 | 480 | 126 | 32 | M6 ร 18 |
| Z11-32ร43 | 32 | 43 | 511 | 98 | 32 | M6 ร 18 |
| Z11-35ร47 | 35 | 47 | 747 | 120 | 43 | M6 ร 18 |
| Z11-6ร14 | 6 | 14 | 299 | 159 | 10 | M4 ร 10 |
All variants include high-strength DIN 912 (12.9) cap screws. Contact us for custom bore/outer-diameter combinations or higher torque requirements.