Flexible Couplings
HL Flexible Pin Coupling
HL Flexible Pin Coupling with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
HL is a flexible pin coupling with multiple bore and bore-length arrangements. The model table combines nominal torque, permissible speed, D/S dimensions, pin-related lengths, inertia and mass. Its resilient pins provide the flexible element, while the drawing determines the correct pin spacing and shaft-end arrangement. The published model tables contain 14 size rows and provide torque values spanning 250–180000 N·m, permissible-speed values spanning 950–8500 r/min, bore values spanning 12–340 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 element for limited shaft displacement
- Several bore and bore-length arrangements
- D, S, mass and inertia values by model
- The model data provides torque values spanning 250–180000 N·m, permissible-speed values spanning 950–8500 r/min, bore values spanning 12–340 mm for a traceable preliminary comparison.
Typical Selection Context
- General motor, pump and gearbox connections
- Industrial shaft lines where pin flexibility and straightforward maintenance are desired
Product Gallery
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 dz | Bore length Y J J₁ Z type L₁ L | Dimensions D | Dimensions D₁ | Dimensions S | Mass kg |
|---|---|---|---|---|---|---|---|---|
| HL1 | 250 | 8500 | 12～24 | 27～52 | 90 | 40 | 2.5 | 2 |
| HL2 | 560 | 6300 | 20～35 | 38～82 | 120 | 55 | 2.5 | 5 |
| HL3 | 1250 | 4750 | 30～48 | 60～112 | 160 | 75 | 2.5 | 8 |
| HL4 | 2500 | 3870 | 40～63 | 84～142 | 195 | 100 | 3 | 22 |
| HL5 | 3150 | 3450 | 50～75 | 84～142 | 220 | 120 | 3 | 30 |
| HL6 | 6300 | 2720 | 60～85 | 107～172 | 280 | 140 | 4 | 53 |
| HL7 | 11200 | 2360 | 70～110 | 100～212 | 320 | 170 | 4 | 98 |
| HL8 | 16000 | 2120 | 80～125 | 132～212 | 360 | 200 | 5 | 119 |
| HL9 | 22400 | 1850 | 100～140 | 167～252 | 410 | 230 | 5 | 197 |
| HL10 | 35500 | 1600 | 110～180 | 167～302 | 480 | 280 | 6 | 322 |
| HL11 | 50000 | 1400 | 130～220 | 202～352 | 540 | 340 | 6 | 520 |
| HL12 | 80000 | 1220 | 100～180 | 242～410 | 630 | 400 | 7 | 714 |
| HL13 | 125000 | 1080 | 190～300 | 282～470 | 710 | 465 | 8 | 1057 |
| HL14 | 180000 | 950 | 240～340 | 330～550 | 800 | 530 | 8 | 1956 |
Engineering Context
This model is best understood from its own construction: Flexible pin element for limited shaft displacement; Several bore and bore-length arrangements; D, S, mass and inertia values by model 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
- Specify both bores, keyways, shaft extensions and pin access
- Check torque, speed, displacement, D/S envelope, inertia and mass
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
What does the pin element accommodate?
It provides the coupling’s intended flexibility; allowable displacement must still be confirmed for the selected row.
Is HL interchangeable with HLL?
No. HLL adds a brake drum and has different bore and envelope dimensions.
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.
