Double loop coupling often use for encoder. Double loop flexible shaft coupling bore have:4,5,6, 6.35 ,8,10,12,14,15mm.
1:Designed for Encoder.
2:Softness very good,Not easily broken.
3:Elastomer use TPU,Anti-oil,anti-oxidation.
HDL Series
HDL-Outside diameter X Total length – d1 bore X d2 bore
Example: HDL-46X55-8X10
H: Series
DL: Double Loop Coupling
46: Outside diameter
55: Total length
8: d1 bore diameter
10: d2 bore diameter
Double Loop Encoder Coupling
| Model | d1,d2 Bore | d3 | L2 | ΦD | L | LF | LP | S | F | M | Wrench Torque
(N.M) |
| HDL-25×21 | 4,5,6, 6.35 ,8 | 16 | 22 | 25 | 21 | 7.9 | 19.5 | 1.7 | 2.5 | 4-M3 | 0.7 |
| HDL-25×25 | 4,5,6, 6.35 ,8 | 16 | 22 | 25 | 25 | 7.9 | 20 | 1.7 | 2.5 | 4-M3 | 0.7 |
| HDL-25X30 | 4,5,6, 6.35 ,8 | 16 | 22 | 25 | 30 | 7.9 | 20 | 1.7 | 2.5 | 4-M3 | 0.7 |
| HDL-30X26 | 4,5,6, 6.35 ,8,10 | 18 | 26 | 30 | 26 | 9.2 | 24 | 1.8 | 3.1 | 4-M4 | 1.7 |
| HDL-30X32 | 4,5,6, 6.35 ,8,10 | 18 | 26 | 30 | 32 | 9.2 | 24 | 1.8 | 3.1 | 4-M4 | 1.7 |
| HDL-30X36 | 4,5,6, 6.35 ,8,10 | 18 | 26 | 30 | 36 | 9.2 | 24.5 | 1.8 | 3.1 | 4-M4 | 1.7 |
| HDL-46X43 | 6, 6.35 ,8,10,12,14,15 | 25 | 39 | 46 | 43 | 12.3 | 38 | 2.5 | 4 | 4-M4 | 1.7 |
| HDL-46X48 | 6, 6.35 ,8,10,12,14,15 | 25 | 39 | 46 | 48 | 12.3 | 39.5 | 2.5 | 4 | 4-M4 | 1.7 |
| HDL-46X55 | 6, 6.35 ,8,10,12,14,15 | 25 | 39 | 46 | 55 | 12.3 | 39.5 | 2.5 | 4 | 4-M4 | 1.7 |
| Model | Rated torque
(N.M) |
Allow Radial direction
(mm) |
Allow angle
(°) |
Allow Axis
(mm) |
Maximum speed
(rpm) |
Static torsional stiffness
(N.M/rad) |
Moment of inertia
(kg.M2) |
Assembly methods | Bushings Material | Flexible colloidal material | SurFace Treatment | Weight
(g) |
| HDL-25×21 | 0.7 | 1 | 3 | -2 ~ +2 | 10000 | 15 | 4.2×10-7 | backwards | High strength aluminum alloy | TPU | Oxidation treatment | 8 |
| HDL-25×25 | 0.7 | 1 | 3 | -2.5 ~ +2.5 | 10000 | 15 | 4.2×10-7 | forwards/backwards | 8 | |||
| HDL-25X30 | 0.7 | 1 | 3 | -4 ~ +3 | 10000 | 15 | 4.2×10-7 | forwards | 8 | |||
| HDL-30X26 | 0.8 | 1 | 3 | -2 ~ +2 | 10000 | 20 | 5.6×10-7 | backwards | 13 | |||
| HDL-30X32 | 0.8 | 1 | 3 | -2.5 ~ +2.5 | 10000 | 20 | 5.6×10-7 | forwards/backwards | 13 | |||
| HDL-30X36 | 0.8 | 1 | 3 | -5 ~ +3 | 10000 | 20 | 5.6×10-7 | forwards | 13 | |||
| HDL-46X43 | 1.0 | 1 | 3 | -4 ~ +3 | 10000 | 25 | 7×10-7 | backwards | 34 | |||
| HDL-46X48 | 1.0 | 1 | 3 | -5 ~ +3 | 10000 | 25 | 7×10-7 | forwards/backwards | 34 | |||
| HDL-46X55 | 1.0 | 1 | 3 | -8 ~ +4 | 10000 | 25 | 7×10-7 | forwards | 34 |
