Flexible Couplings

HLL Flexible Pin Coupling with Brake Drum

HLL Flexible Pin Coupling with Brake Drum with model-specific technical data, engineering context and assembly drawing for preliminary selection.

Last reviewed Aug 29, 2026

Product Overview

HLL adds a brake drum to the HL flexible pin coupling arrangement. In addition to torque, speed and paired bores, its table lists drum and clearance dimensions, inertia and mass. Selection therefore combines the resilient pin coupling duty with the brake-drum diameter, width, braking torque and guard space. The published model tables contain 15 size rows and provide torque values spanning 560–35500 N·m, permissible-speed values spanning 950–5600 r/min, bore values spanning 20–180 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 coupling with integrated brake-drum interface
  • Paired bore and drum dimensions by model
  • Inertia and mass support braking-response review
  • The model data provides torque values spanning 560–35500 N·m, permissible-speed values spanning 950–5600 r/min, bore values spanning 20–180 mm for a traceable preliminary comparison.

Typical Selection Context

  • Hoists, conveyors and process drives with brake-drum hardware
  • Motor-to-gearbox connections requiring flexible pins and stopping capability

Technical Specification

The following model tables are provided for preliminary comparison. Keep the relevant assembly drawing with the selected row.

ModelNominal torque Tn N·mPermissible speed [n] r/minBore diameter d₁ d₂ d₃Bore length Y J J₁ Z type L₁ LDimensions D₀Dimensions DDimensions D₁Dimensions BDimensions SMass moment of inertia kg·m²Mass kg
HLL1560560020~3538~8220012055852.50.05311
HLL21250375030~4860~11220016075852.50.0614
HLL31250243030~4860~112315160751322.50.3225
HLL42500243040~6384~14231519510013230.4240
HLL52500190040~6384~14240019510016831.259
HLL63150190050~7584~14240022012016831.4269
HLL73150150050~7584~14250022012021033.191
HLL86300150060~85107~17240028014016844.1588
HLL96300150060~85107~17250028014021043.2113
HLL1011200150070~95107~21250032017021044.24156
HLL1111200122070~110107~21263032017026548.5187
HLL1216000122080~125132~21263036020026558.78326
HLL13224001080100~140167~252710410230298517.7337
HLL14355001080110~180167~302710480280298618.16453
HLL1535500950110~180167~302800480280335630.8504

Engineering Context

This model is best understood from its own construction: Flexible pin coupling with integrated brake-drum interface; Paired bore and drum dimensions by model; Inertia and mass support braking-response review 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

HLL Flexible Pin Coupling with Brake Drum assembly drawing
Use this assembly drawing together with the selected model row. Dimension symbols and connection details are drawing-specific; confirm final installation dimensions before manufacture or installation.

Information Required for Selection

  • Provide coupling torque, braking torque, drum dimensions and speed
  • Match paired bores, pin geometry, clearance, inertia and guards
  • Send the exact model row, assembly drawing and actual duty data with the inquiry.

Product FAQ

What extra data is needed for HLL?

Braking torque, drum dimensions and clearance must be supplied in addition to normal coupling duty.

Does the brake drum change pin selection?

Yes. The coupling and brake interface share the same installation envelope and rotating inertia.

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.

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