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Z2 / A2 Type Double-Taper Keyless Shaft Locking Assembly | AL-S Straight-Through Expansion Sleeve | Interchangeable TLK200 / KTR100 Power Transmission Clamping Device
Model Number
Check below, custom
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
[Header: High Radial Pressure & Non-Axial Shift Clamping: Z2 / A2 Double-Taper Keyless Locking Assembly]
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The Apexcoupling Z2 / A2 Type Keyless Shaft Locking Assembly (also designated as the AL-S straight-through double-taper expansion sleeve) is an ultra-reliable, friction-based clamping element designed for heavy-duty industrial power transmission systems. Interchangeable with international standard profiles like TLK200, KTR100, and ZJ2, the A2 architecture consists of a split double-taper inner ring, a split double-taper outer ring, and two double-taper clamping pressure rings. As the high-strength inner hexagon socket bolts are tightened, the wedge mechanism generates high radial contact pressure without causing axial movement of the elastic rings relative to the shaft hub.
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Compared to single-taper A1 models, the A2 double-taper design generates significantly higher radial pressure for the same bolt tightening force, enabling it to transfer heavier rotational torques and axial loads. Precision-forged from quenched and tempered 45# carbon steel (or optional stainless steel), these expansion sleeves feature 2 to 4 integrated disassembly thread holes along the pressure ring for effortless, non-destructive removal.
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[Core Product Advantages / Unique Selling Points]
Higher Radial Pressure Generation: The double-taper design delivers greater radial clamping force than single-taper designs under equal bolt torque, accommodating higher shock loads.
Zero Axial Displacement During Clamping: Tightening the socket bolts clamps the hub without shifting the position of the elastic rings along the shaft axis, preserving exact axial component alignment.
Universal Industrial Interchangeability: Directly replaces and matches international interchange codes including TLK200, KTR100, ZJ2, A2, and AL-S series sleeves.
Integrated Disassembly Thread Holes: Equipped with 2 to 4 specialized threaded extraction holes on the pressure ring for fast, hammer-free removal during maintenance.
Forged 45# Steel & Stainless Options: Quenched and tempered 45# steel construction ensures exceptional mechanical toughness, fatigue resistance, and long operational service life.
Stackable Multi-Unit Configuration: Designed so that multiple locking sleeves can be installed in series to handle extreme torque and heavy axial loads.
Broad Machinery Application: Essential component for CNC machine tools, food packaging, printing presses, textile machinery, woodworking equipment, and photovoltaic gear.
Direct Factory Sourcing: Manufactured directly at our plant with complete support for non-standard custom sizes, special bore diameters, and flexible OEM/ODM production pipelines.
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[Technical Specifications Table]
| Attribute | Specification Details (As Detailed in Technical Profile & 88bbe1b5-ba7f-4d61-b243-01c48708b28b.png) |
| Product Model Series | Z2 / A2 Type Locking Assembly (AL-S Straight-Through Double-Taper) |
| International Cross-Reference | Direct Replacement for TLK200, KTR100, ZJ2, A2, AL-S |
| Mechanical Structure Type | Split Double-Taper Inner Ring + Outer Ring + Dual Pressure Rings |
| Primary Material Options | Quenched 45# Forged Carbon Steel or Stainless Steel |
| Hardware Screw Grade | High-Tensile Inner Hexagon Socket Bolts |
| Axial Displacement Behavior | Zero Axial Movement of elastic rings relative to shaft hub during tightening |
| Disassembly Features | Integrated threaded removal holes (2 to 4 locations along perimeter) |
| Axial Force Capacity | Rated Baseline 31 kN (Scalable with sizing/multi-unit series) |
| Torque Load Capacity | Rated Baseline 298 N·m (Scalable across full dimensional matrix) |
| Custom Size Capabilities | Fully customizable Inner Diameter (ID) and Outer Diameter (OD) profiles |
| Applicable Industries | CNC Machine Tools, Packaging, Printing, Textile, Photovoltaic, Chemical |
| Place of Origin | Manufactured by Apexcoupling (Direct Factory Hub) |
| Customization Support | Direct Factory Technical Custom Sourcing (OEM, ODM, OBM) |
| Model | Inner Diameter (mm) | Outer Diameter (mm) | Length (mm) |
|---|---|---|---|
| Z2 | 18 | 47 | 20 |
| Z2 | 19 | 47 | 20 |
| Z2 | 20 | 47 | 20 |
| Z2 | 22 | 47 | 20 |
| Z2 | 24 | 50 | 20 |
| Z2 | 25 | 50 | 20 |
| Z2 | 28 | 55 | 20 |
| Z2 | 30 | 55 | 20 |
| Z2 | 32 | 60 | 20 |
| Z2 | 35 | 60 | 20 |
| Z2 | 38 | 63 | 20 |
| Z2 | 38 | 65 | 20 |
| Z2 | 40 | 65 | 20 |
| Z2 | 42 | 72 | 24 |
| Z2 | 42 | 75 | 24 |
| Z2 | 45 | 75 | 24 |
| Z2 | 48 | 80 | 24 |
| Z2 | 50 | 80 | 24 |
| Z2 | 55 | 85 | 24 |
| Z2 | 60 | 90 | 24 |
| Z2 | 65 | 95 | 24 |
| Z2 | 70 | 110 | 28 |
| Z2 | 75 | 115 | 28 |
| Z2 | 80 | 120 | 28 |
| Z2 | 85 | 125 | 28 |
| Z2 | 90 | 130 | 28 |
| Z2 | 95 | 135 | 28 |
| Z2 | 100 | 145 | 33 |
| Z2 | 105 | 150 | 33 |
| Z2 | 110 | 155 | 33 |
| Z2 | 120 | 165 | 33 |
| Z2 | 125 | 170 | 33 |
| Z2 | 130 | 180 | 38 |
| Z2 | 140 | 190 | 38 |
| Z2 | 150 | 200 | 38 |
| Z2 | 160 | 210 | 38 |
| Z2 | 170 | 225 | 44 |
| Z2 | 180 | 235 | 44 |
| Z2 | 190 | 250 | 52 |
| Z2 | 200 | 260 | 52 |
| Z2 | 210 | 275 | 56 |
| Z2 | 220 | 285 | 56 |
| Z2 | 240 | 305 | 56 |
| Z2 | 250 | 315 | 56 |
| Z2 | 260 | 325 | 56 |
| Z2 | 280 | 355 | 66 |
| Z2 | 300 | 375 | 66 |
| Z2 | 320 | 405 | 72 |
Note: Non‑standard customization is also available as indicated in the original images. All dimensions are in millimeters (mm).
Z2 locking assembly, A2 expansion sleeve, TLK200 keyless shaft coupling, KTR100 locking element, AL-S double taper locking sleeve, ZJ2 keyless clamping device, 45 steel shaft expansion coupling manufacturer.
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Z2 locking assembly
