Flexible Couplings
HTLB H-Type Flexible Block Coupling
HTLB H-Type Flexible Block Coupling with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
HTLB is the H-type flexible block coupling variant. Its table distinguishes the block-coupling dimensions B, D, D1, D2 and S while listing torque, speed, bore, mass and inertia. The block geometry and bore arrangement should be verified together because the flexible element and hub envelope are not the same as HTLA. The published model tables contain 19 size rows and provide torque values spanning 160–63000 N·m, permissible-speed values spanning 800–5000 r/min, bore values spanning 28–250 mm. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- H-type flexible block element
- B/D/D1/D2 dimensions by model
- Mass and inertia support dynamic comparison
- The model data provides torque values spanning 160–63000 N·m, permissible-speed values spanning 800–5000 r/min, bore values spanning 28–250 mm for a traceable preliminary comparison.
Typical Selection Context
- Compact shaft connections where a flexible block is specified
- Motor, pump and gearbox installations with controlled axial space
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 d₁ | Bore length L Y J₁ | B | D | D₁ | D₂ | S | Mass kg | Mass moment of inertia kg·m² | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HTLB1 | A110 | 160 | 5000 | 28～38※～45※ | 44～112 | 49 | 110 | 80 | 62 | 2 | 6 | 0.007 |
| HTLB2 | A125 | 250 | 4500 | 32～45※～50※ | 60～112 | 56 | 125 | 92 | 75 | 2 | 9.2 | 0.012 |
| HTLB3 | A140 | 355 | 4000 | 38～50※～56※ | 60～112 | 62 | 140 | 100 | 80 | 2 | 11.2 | 0.02 |
| HTLB4 | A160 | 560 | 3500 | 42～56※～65※ | 84～142 | 69 | 160 | 110 | 95 | 2 | 17.8 | 0.039 |
| HTLB5 | A180 | 900 | 3100 | 50～65※～75※ | 84～142 | 74 | 180 | 125 | 108 | 2 | 25.4 | 0.072 |
| HTLB6 | A200 | 1400 | 2800 | 60～75※～85※ | 107～172 | 81 | 200 | 140 | 122 | 2 | 31.3 | 0.117 |
| HTLB7 | A225 | 2000 | 2500 | 65～85※～90※ | 107～172 | 92 | 225 | 150 | 138 | 2 | 43.4 | 0.183 |
| HTLB8 | A250 | 2800 | 2200 | 71～95※～100※ | 107～212 | 105 | 250 | 165 | 155 | 3 | 58.5 | 0.35 |
| HTLB9 | A280 | 4000 | 2000 | 80～100※～110※ | 132～212 | 110 | 280 | 180 | 172 | 3 | 81 | 0.55 |
| HTLB10 | A315 | 5600 | 1800 | 90～125 | 132～212 | 120 | 315 | 200 | 200 | 3 | 98.9 | 0.9 |
| HTLB11 | A350 | 7100 | 1600 | 100～140 | 167～252 | 128 | 350 | 230 | 230 | 3 | 152 | 1.6 |
| HTLB12 | A400 | 10000 | 1400 | 110～150 | 167～252 | 137 | 400 | 250 | 250 | 3 | 182.8 | 2.7 |
| HTLB13 | A440 | 12500 | 1300 | 120～160 | 167～302 | 155 | 440 | 265 | 265 | 5 | 204 | 3.9 |
| HTLB14 | A480 | 16000 | 1200 | 130～170 | 202～302 | 160 | 480 | 300 | 300 | 5 | 277.6 | 5.9 |
| HTLB15 | A520 | 20000 | 1100 | 140～180 | 202～302 | 175 | 520 | 315 | 315 | 5 | 348.3 | 8.6 |
| HTLB16 | A560 | 28000 | 1000 | 160～200 | 242～352 | 201 | 560 | 320 | 320 | 6 | 496.9 | 13.9 |
| HTLB17 | A610 | 35500 | 900 | 170～220 | 242～352 | 215 | 610 | 352 | 352 | 6 | 582 | 20.2 |
| HTLB18 | A660 | 45000 | 860 | 180～240 | 242～410 | 234 | 660 | 384 | 384 | 6 | 706.2 | 29.7 |
| HTLB19 | A710 | 63000 | 800 | 200～250 | 280～410 | 246 | 710 | 416 | 416 | 6 | 917.2 | 43.2 |
Engineering Context
This model is best understood from its own construction: H-type flexible block element; B/D/D1/D2 dimensions by model; Mass and inertia support dynamic 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
- Match bore pair, block dimensions and shaft extensions
- Review torque, speed, inertia, mass, alignment and maintenance access
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
How is HTLB different from HTLA?
HTLB uses the H-type block configuration and its own B/D2 dimension set; use the correct drawing.
What should be checked besides torque?
Check speed, bore, block clearance, shaft extension, inertia and installation access.
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.
