Flexible Couplings
LB Tire Coupling
LB Tire Coupling with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
LB is a tire coupling with its own model table and drawing, not an automatic substitute for LA. The record should be read for the LB-specific bore, length, torque, speed, D/S and mass values. The resilient tire transfers torque while providing compliance, so the selected size must be checked against misalignment, environment and the machine’s shaft spacing. The published model tables contain 14 size rows and provide torque values spanning 10–20000 N·m, permissible-speed values spanning 1000–5000 r/min, bore values spanning 6–200 mm. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- LB-specific resilient tire arrangement
- Model data links bore, length, torque, speed and mass
- Drawing controls the tire seat and shaft-end geometry
- The model data provides torque values spanning 10–20000 N·m, permissible-speed values spanning 1000–5000 r/min, bore values spanning 6–200 mm for a traceable preliminary comparison.
Typical Selection Context
- Industrial motor and process drives using the LB tire interface
- Installations where resilient compliance and accessible tire maintenance are required
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 H | Number of screws Md×L | Bore diameter d dz | Bore length L Y J₁ Z₁ | Nominal torque Tn N·m | Permissible speed [n] r/min | Mass moment of inertia kg·m² | Mass kg |
|---|---|---|---|---|---|---|---|---|---|---|
| LB1 | 63 | 20 | 26 | 12-M4×12 | 6～11 | 16～25 | 10 | 5000 | 0.0003 | 0.4 |
| LB2 | 100 | 36 | 32/37 | 12-M6×18 | 10～19 | 25～42 | 50 | 5000 | 0.0035 | 1.5 |
| LB3 | 120 | 44 | 39 | 12-M8×20 | 16～24 | 30～52 | 100 | 4500 | 0.01 | 2.2 |
| LB4 | 140 | 50 | 45 | 12-M10×20 | 22～35 | 38～82 | 160 | 4200 | 0.021 | 3.1 |
| LB5 | 160 | 60 | 51 | 12-M10×22 | 25～38 | 44～82 | 224 | 4000 | 0.031 | 5 |
| LB6 | 185 | 70 | 58 | 12-M12×25 | 30～45 | 60～112 | 315 | 3600 | 0.07 | 8.1 |
| LB7 | 220 | 85 | 68 | 12-M12×28 | 35～56 | 60～112 | 500 | 3200 | 0.15 | 13 |
| LB8 | 265 | 100 | 82 | 12-M12×32 | 40～65 | 84～142 | 800 | 2600 | 0.30 | 22 |
| LB9 | 310 | 120 | 106 | 12-M16×40 | 45～75 | 84～142 | 1250 | 2200 | 0.75 | 35 |
| ″ | 340 | 135 | 106 | 12-M16×45 | 55～75 | 84～142 | 1600 | 2000 | 1.1 | 51 |
| LB10 | 400 | 150 | 124 | 12-M20×50 | 60～95 | 107～172 | 2500 | 1800 | 2.2 | 69 |
| LB11 | 450 | 190 | 140 | 12-M20×56 | 80～125 | 132～212 | 5000 | 1600 | 4.4 | 110 |
| LB12 | 560 | 239 | 172 | 16-M24×71 | 100～150 | 167～252 | 10000 | 1200 | 14 | 190 |
| LB13 | 700 | 318 | 220 | 24-M24×71 | 130～200 | 202～352 | 20000 | 1000 | 38 | 340 |
Engineering Context
This model is best understood from its own construction: LB-specific resilient tire arrangement; Model data links bore, length, torque, speed and mass; Drawing controls the tire seat and shaft-end geometry 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
- Match LB bore, shaft extension, D/S envelope and tire seat
- Confirm torque, speed, misalignment, temperature, oil exposure and maintenance access
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
Can LB use an LA drawing?
No. Treat LA and LB as separate records and use the correct model drawing.
What should be checked around the tire seat?
Confirm tire clearance, shaft alignment, environment and access for inspection or replacement.
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.
