Flexible Couplings
ZLL Flexible Pin Gear Coupling with Brake Drum
ZLL Flexible Pin Gear Coupling with Brake Drum with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
ZLL adds a brake drum to the flexible pin gear-coupling arrangement. Its table includes paired bores, drum and D-series dimensions, torque, speed, inertia and mass. The gear teeth, resilient pins and brake drum must be reviewed as one rotating assembly for clearance, lubrication and braking duty. The published model tables contain 32 size rows and provide torque values spanning 0.25–31.5 N·m, permissible-speed values spanning 950–4500 r/min, bore values spanning 16–180 mm. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- Flexible pin gear coupling with brake drum
- Paired bores and drum dimensions by model
- Inertia and mass support braking-response comparison
- The model data provides torque values spanning 0.25–31.5 N·m, permissible-speed values spanning 950–4500 r/min, bore values spanning 16–180 mm for a traceable preliminary comparison.
Typical Selection Context
- Brake-equipped gear-unit and conveyor drives
- Heavy machinery requiring flexible pins and a defined drum interface
Technical Specification
The following model tables are provided for preliminary comparison. Keep the relevant assembly drawing with the selected row.
| Model | Nominal torque Tn kN·m | Permissible speed [n] r/min | Bore diameter d₁ d₂ | Bore length Y J₁ L | D₀ | D | D₁ | D₂ | B | B₁ | S | Mass moment of inertia kg·m² | Mass kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ZLL1 | 0.25 | 4500 | 16～19 | 42 | 160 | 98 | 50 | 56 | 70 | 9 | 2 | 0.018 | 6.64 |
| 20～24 | 38～52 | 19 | |||||||||||
| 25～28 | 44～62 | 29 | |||||||||||
| 30～32 | 60～82 | ||||||||||||
| – 35～38 | 49 | ||||||||||||
| ZLL2 | 0.63 | 3800 | 25～28 | 62 | 200 | 124 | 65 | 70 | 85 | 30 | 2 | 0.053 | 12.04 |
| 30～38 | 60～82 | 50 | |||||||||||
| 40～42 | 84～112 | ||||||||||||
| – 45～48 | 80 | ||||||||||||
| ZLL3 | 1.8 | 3000 | 40～56 | 84～112 | 250 | 166 | 90 | 105 | 105 | 48.5 | 3 | 0.183 | 28.09 |
| 60 | 107～142 | ||||||||||||
| – 63～70 | 78.5 | ||||||||||||
| ZLL4 | 4.5 | 2450 | 50～56 | 84～112 | 315 | 214 | 120 | 130 | 135 | 40 | 3 | 0.347 | 51.69 |
| 60～75 | 107～142 | 70 | |||||||||||
| 80 | 132～172 | ||||||||||||
| – 85～90 | 100 | ||||||||||||
| ZLL5 | 8 | 1900 | 60～75 | 107～142 | 400 | 240 | 130 | 145 | 170 | 44 | 3 | 1.413 | 76.61 |
| 80～90 | 132～172 | ||||||||||||
| – 95 | 74 | ||||||||||||
| ZLL6 | 11.2 | 1500 | 70～75 | 107～142 | 500 | 280 | 160 | 170 | 210 | 40 | 4 | 3.865 | 130.61 |
| 80～95 | 132～172 | 70 | |||||||||||
| 100～110 | 167～212 | ||||||||||||
| – 120 | 110 | ||||||||||||
| ZLL7 | 18 | 1200 | 80～95 | 132～172 | 630 | 330 | 190 | 200 | 265 | 42 | 4 | 10.753 | 222.63 |
| 100～125 | 167～212 | 82 | |||||||||||
| 130 | 202～252 | 112 | |||||||||||
| ZLL8 | 25 | 1050 | 90～95 | 132～172 | 710 | 380 | 220 | 220 | 300 | 5 | 4 | 19.156 | 307.92 |
| 100～125 | 167～212 | 45 | |||||||||||
| 130～150 | 202～252 | 85 | |||||||||||
| ZLL9 | 31.5 | 950 | 100～125 | 167～212 | 800 | 400 | 245 | 245 | 340 | 40 | 5 | 33.446 | 405.88 |
| 130～150 | 202～252 | 80 | |||||||||||
| 160～180 | 242～302 | 130 |
Engineering Context
This model is best understood from its own construction: Flexible pin gear coupling with brake drum; Paired bores and drum dimensions by model; Inertia and mass support braking-response comparison 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, bore and speed
- Confirm pin/gear lubrication, drum clearance, inertia and guard coverage
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
What extra check does ZLL add?
The drum adds braking torque, clearance and inertia checks to the gear-and-pin coupling selection.
Why are paired bores important?
The two machine shafts may have different fits; both bores and lengths must match.
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.
