Flexible Couplings
ZLZ Intermediate-Shaft Flexible Pin Gear Coupling
ZLZ Intermediate-Shaft Flexible Pin Gear Coupling with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
ZLZ is the intermediate-shaft flexible pin gear coupling. The model table uses paired bores and adds D/D1/B/S dimensions for the intermediate connection. The drawing caption is incomplete; the complete controlled model name is used and the intermediate shaft length, phasing and pin access must be confirmed before order. The published model tables contain 23 size rows and provide torque values spanning 0.112–2800 N·m, permissible-speed values spanning 430–4500 r/min, bore values spanning 12–850 mm. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- Intermediate-shaft flexible pin gear layout
- Paired bores for the two connected shaft interfaces
- Controlled model name resolves the drawing-caption omission
- The model data provides torque values spanning 0.112–2800 N·m, permissible-speed values spanning 430–4500 r/min, bore values spanning 12–850 mm for a traceable preliminary comparison.
Typical Selection Context
- Extended gear-unit and process drive spans
- Installations where an intermediate shaft changes the coupling distance
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 type J₁ type L | D | D₁ | B | S | Mass moment of inertia kg·m² | Mass kg |
|---|---|---|---|---|---|---|---|---|---|---|
| ZLZ1 | 0.112 | 4500 | 12～28 | 27～62 | 84 | 40 | 38 | 2.5 | 0.002 | 1.90 |
| ZLZ2 | 0.25 | 4500 | 16～38 | 30～82 | 98 | 50 | 42 | 2.5 | 0.003 | 3.18 |
| ZLZ3 | 0.63 | 4000 | 25～48 | 44～112 | 124 | 65 | 54 | 3.0 | 0.011 | 6.68 |
| ZLZ4 | 1.8 | 4000 | 40～70 | 84～142 | 166 | 90 | 72 | 4 | 0.047 | 15.98 |
| ZLZ5 | 4.5 | 3600 | 55～90 | 84～172 | 214 | 120 | 72 | 4 | 0.137 | 29.50 |
| ZLZ6 | 8 | 3200 | 60～95 | 107～172 | 240 | 130 | 86 | 5 | 0.241 | 39.80 |
| ZLZ7 | 11.2 | 2700 | 70～120 | 107～212 | 280 | 160 | 90 | 5 | 0.511 | 62.82 |
| ZLZ8 | 18 | 2300 | 80～130 | 132～252 | 330 | 190 | 100 | 6 | 1.1 | 101.44 |
| ZLZ9 | 25 | 2000 | 90～150 | 132～252 | 380 | 220 | 115 | 7 | 2.253 | 152.5 |
| ZLZ10 | 31.5 | 1900 | 100～170 | 167～302 | 400 | 245 | 115 | 8 | 3.031 | 185.0 |
| ZLZ11 | 40 | 1750 | 110～180 | 167～302 | 435 | 260 | 130 | 8 | 4.499 | 229.3 |
| ZLZ12 | 63 | 1600 | 130～200 | 202～352 | 480 | 290 | 145 | 8 | 7.504 | 313.3 |
| ZLZ13 | 100 | 1400 | 150～250 | 202～410 | 545 | 345 | 165 | 8 | 14.86 | 484.9 |
| ZLZ14 | 125 | 1270 | 170～260 | 242～352 | 600 | 390 | 170 | 8 | 23.98 | 646.9 |
| ZLZ15 | 160 | 1200 | 190～300 | 282～470 | 630 | 420 | 190 | 10 | 32.92 | 767.5 |
| ZLZ16 | 250 | 1020 | 220～340 | 282～550 | 745 | 490 | 205 | 10 | 69.47 | 1210 |
| ZLZ17 | 355 | 920 | 240～380 | 330～550 | 825 | 550 | 225 | 10 | 118.3 | 1635 |
| ZLZ18 | 450 | 830 | 250～420 | 330～650 | 920 | 605 | 240 | 13 | 196.2 | 2168 |
| ZLZ19 | 630 | 730 | 280～450 | 380～650 | 1040 | 695 | 255 | 14 | 358.1 | 3205 |
| ZLZ20 | 1120 | 610 | 320～600 | 380～800 | 1240 | 800 | 285 | 15 | 766.6 | 4923 |
| ZLZ21 | 1800 | 490 | 380～710 | 450～800 | 1540 | 1020 | 310 | 18 | 2143 | 9212 |
| ZLZ22 | 2240 | 460 | 420～750 | 540～800 | 1640 | 1100 | 330 | 19 | 2937 | 11191 |
| ZLZ23 | 2800 | 430 | 450～850 | 540～880 | 1760 | 1240 | 360 | 20 | 4477 | 14544 |
Engineering Context
This model is best understood from its own construction: Intermediate-shaft flexible pin gear layout; Paired bores for the two connected shaft interfaces; Controlled model name resolves the drawing-caption omission 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
- Provide intermediate shaft length, phasing, bores and shaft extensions
- Check torque, speed, pin/gear access, lubrication, inertia and guard clearance
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
Why is ZLZ different from ZL?
ZLZ introduces an intermediate-shaft arrangement and a different shaft-span envelope.
Why is the complete name used on this page?
The drawing caption is incomplete; the controlled model designation avoids ambiguity.
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.
