Flexible Couplings
TLL Flexible Sleeve Pin Coupling with Brake Drum
TLL Flexible Sleeve Pin Coupling with Brake Drum with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
TLL combines the TL sleeve-pin coupling with a brake drum. Its model table adds drum diameter and width to the bore, torque, speed, D/S/A and mass values. The flexible sleeve, brake hardware and guard must be treated as one assembly when checking clearance, braking torque and maintenance access. The published model tables contain 9 size rows and provide torque values spanning 125–16000 N·m, permissible-speed values spanning 1000–3800 r/min, bore values spanning 25–170 mm. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- Sleeve-pin coupling with brake drum
- Drum, B, D and A dimensions by size
- Paired bore arrangements and mass data
- The model data provides torque values spanning 125–16000 N·m, permissible-speed values spanning 1000–3800 r/min, bore values spanning 25–170 mm for a traceable preliminary comparison.
Typical Selection Context
- Brake-equipped motor and conveyor drives
- Industrial shaft connections needing sleeve-pin flexibility and stopping hardware
Technical Specification
The following model tables are provided for preliminary comparison. Keep the relevant assembly drawing with the selected row.
| Model | Nominal torque Tn N·m | Permissible speed [n] r/min | Bore diameter d d₁d₂ | Bore length Y type L | Bore length J Z type L₁ | Dimensions D₀ | Dimensions B | Dimensions D | Dimensions S | Dimensions A | Mass kg |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TLL1 | 125 | 3800 | 25~35 | 62~82 | 44~82 | 200 | 85 | 130 | 5 | 45 | 10 |
| TLL2 | 250 | 3000 | 32~42 | 82~112 | 60~112 | 250 | 105 | 160 | 5 | 45 | 16 |
| TLL3 | 500 | 2400 | 40~48 | 112 | 84~112 | 315 | 132 | 190 | 5 | 45 | 30 |
| TLL4 | 710 | 2400 | 45~63 | 112~142 | 84~142 | 315 | 132 | 224 | 6 | 65 | 40 |
| TLL5 | 1000 | 2400 | 50~71 | 112~142 | 84~142 | 315 | 168 | 250 | 6 | 65 | 48 |
| TLL6 | 2000 | 1900 | 63~95 | 142~172 | 107~172 | 400 | 168 | 315 | 8 | 80 | 94 |
| TLL7 | 4000 | 1500 | 80~110 | 172~212 | 132~212 | 500 | 210 | 400 | 10 | 100 | 130 |
| TLL8 | 8000 | 1200 | 100~130 | 212~252 | 167~252 | 630 | 265 | 475 | 12 | 130 | 310 |
| TLL9 | 16000 | 1000 | 120~170 | 212~302 | 167~302 | 710 | 298 | 600 | 14 | 180 | 580 |
Engineering Context
This model is best understood from its own construction: Sleeve-pin coupling with brake drum; Drum, B, D and A dimensions by size; Paired bore arrangements and mass data 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
- State coupling torque, braking torque, drum dimensions and speed
- Match bore arrangement, sleeve access, drum clearance, guard and temperature
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
How does TLL differ from TL?
TLL adds a brake drum and associated dimensions; the brake duty changes the complete envelope.
What should be checked before commissioning?
Confirm sleeve installation, drum clearance, brake torque and guard coverage.
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.