Flexible Couplings
LA Tire Coupling
LA Tire Coupling with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
LA is a tire coupling with eleven size rows covering screw pattern, bore diameter, two bore-length arrangements, nominal torque, permissible speed, inertia and mass. The resilient tire element makes damping and misalignment part of the application discussion, while the table’s two length columns distinguish the shaft-end arrangements available for each size. The published model tables contain 11 size rows and provide torque values spanning 10–20000 N·m, permissible-speed values spanning 800–5000 r/min, bore values spanning 6–180 mm. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- Resilient tire element with two bore-length arrangements
- Nominal torque and permissible speed by LA1–LA11
- Screw count, inertia and mass support installation planning
- The model data provides torque values spanning 10–20000 N·m, permissible-speed values spanning 800–5000 r/min, bore values spanning 6–180 mm for a traceable preliminary comparison.
Typical Selection Context
- Motor, pump and general process drives needing a resilient element
- Shaft lines where vibration, misalignment and tire access must be considered
Technical Specification
The following model tables are provided for preliminary comparison. Keep the relevant assembly drawing with the selected row.
| Size | Main dimensions D | Main dimensions D₁ | Main dimensions S | Number of screws Md×L | Bore diameter d dz | Bore length L Y J₁ | Bore length L₁ J Z₁ | Nominal torque Tn N·m | Permissible speed [n] r/min | Mass moment of inertia kg·m² | Mass kg |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LA1 | 63 | 20 | 4 | 12-M4×10 | 6～11 | 16～25 | — | 10 | 5000 | 0.0004 | 0.35 |
| LA2 | 100 | 36 | 8 | 12-M6×20 | 8～19 | 20～42 | 35 | 20 | 5000 | 0.005 | 1.33 |
| LA3 | 135 | 48 | 12 | 12-M8×25 | 18～28 | 30～62 | 42～50 | 80 | 4000 | 0.022 | 3.4 |
| LA4 | 180 | 64 | 18 | 12-M10×30 | 25～38 | 44～82 | 50～65 | 160 | 3150 | 0.071 | 7.4 |
| LA5 | 210 | 80 | 18 | 16-M10×40 | 30～50 | 60～112 | 65～90 | 315 | 2800 | 0.154 | 13.5 |
| LA6 | 265 | 100 | 24 | 16-M12×40 | 40～56 | 84～112 | 90 | 630 | 2500 | 0.46 | 22.6 |
| LA7 | 310 | 120 | 28 | 16-M16×50 | 45～75 | 84～142 | 90～120 | 1250 | 2000 | 0.89 | 84.8 |
| LA8 | 400 | 150 | 38 | 16-M20×60 | 60～95 | 107～172 | 120～145 | 2500 | 1600 | 3.57 | 74.3 |
| LA9 | 450 | 190 | 42 | 20-M20×70 | 80～125 | 132～212 | 145～180 | 5000 | 1250 | 6.47 | 111.5 |
| LA10 | 560 | 230 | 51 | 24-M24×80 | 100～150 | 167～252 | 180～220 | 10000 | 1000 | 17.55 | 191.3 |
| LA11 | 700 | 280 | 70 | 32-M30×90 | 130～180 | 202～302 | 220～270 | 20000 | 800 | 54.1 | 373 |
Engineering Context
This model is best understood from its own construction: Resilient tire element with two bore-length arrangements; Nominal torque and permissible speed by LA1–LA11; Screw count, inertia and mass support installation planning Industry selection practice checks torque and speed together with the movement, shaft interface, installation envelope and maintenance conditions allowed by that construction.
Technical Notes
- Model symbols, units and empty or placeholder cells are shown as published.
- Dimension letters must be interpreted with the relevant assembly drawing.
- Published values support preliminary review and do not replace final engineering confirmation.
Assembly Drawing
Information Required for Selection
- Choose the bore-length arrangement that matches each shaft extension
- Check torque, speed, screw pattern, tire environment, inertia and mass
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
Why are two bore-length columns shown?
LA offers different shaft-end arrangements; select the row that matches the actual extension geometry.
What environment matters for a tire coupling?
Temperature, oil, dust, ozone and access for inspecting the resilient tire should be confirmed.
Are the published values final ordering values?
No. They are preliminary engineering data; confirm the selected model, drawing, dimensions, materials, standard and suitability with RONGXING DRIVE.
Technical data is provided for preliminary selection. Confirm the final model, dimensions, materials, applicable standard and operating suitability with RONGXING DRIVE before quotation, manufacture or installation.
