RV / Harmonic ReducersSHF SIMPLE UNIT
SHF(Simple Unit Type)
The SHF(Simple Unit Type) is available from Source Engineering Inc. in Santa Clara, CA for OEM rv harmonic reducers programs. Contact us for sizing, customization, samples, and volume pricing.
SHF(Simple Unit Type)
Product Details
Harmonic Reducer
Arc cone right angle speed reducer motor
The strain wave reducer of CSF series have a standard cup-shaped flexspline, the input shaft is matched with the inner hole of wave generator through Oldham’s coupling which has a function of certain self-alignment.
Outline Drawing/Dimensions Table(SHF-2SO)
Product Description
| Symbol\Model | 14 | 17 | 20 | 25 | 32 | |
|---|---|---|---|---|---|---|
| φA h6 | 50 | 60 | 70 | 85 | 110 | |
| φB1 | 14 | 18 | 21 | 26 | 26 | |
| φC H7 | Standard | 6 | 8 | 9 | 11 | 14 |
| Max | 8 | 10 | 13 | 15 | 15 | |
| D* | SHF | 28.5+0 -0.8 | 32.5+0 -0.9 | 33.5+0 -1.0 | 37+0 -1.1 | 44+0 -1.1 |
| E | 23.5 | 26.5 | 29 | 34 | 42 | |
| F* | 5 | 6 | 4.5 | 3 | 2 | |
| G | 2.4 | 3 | 3 | 3.3 | 3.6 | |
| H | 14.1 | 16 | 17.5 | 18.7 | 23.4 | |
| I | 7 | 7.5 | 8.5 | 12 | 15 | |
| J | 6 | 6.5 | 7.5 | 10 | 14 | |
| K* | SHF | 0.4 | 0.3 | 0.1 | 2.1 | 2.5 |
| L | SHF | 17.6+0 -0.1 | 19.5+0 -0.1 | 20.1+0 -0.1 | 20.2+0 -0.1 | 22+0 -0.1 |
| φM1 | 70 | 80 | 90 | 110 | 142 | |
| φM2 | 48 | 60 | 70 | 88 | 114 | |
| 0 | 8 | 12 | 12 | 12 | 12 | |
| φP | 3.5 | 3.5 | 3.5 | 4.5 | 5.5 | |
| φ0 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | |
| ΦR | 64 | 74 | 84 | 102 | 132 | |
| S | 2 | 4 | 4 | 4 | 4 | |
| T1 | M3X6 | M3X6 | M3X8 | M3X8 | M4X8 | |
| T2 | 22.5° | 15° | 15° | 15° | 15° | |
| φU | 44 | 54 | 62 | 77 | 100 | |
| V | 一 | 一 | 10.4 | 12.8 | 16.3 | |
| W Js9 | 一 | 一 | 3 | 4 | 5 | |
| X1 | 12 E.A.8 | 20 E.A.16 | 16 | 16 | 16 | |
| X2 | M3X5 | M3X6 | M3X6 | M4X7 | M5X8 | |
| Y1 | φ3.5X6 | φ3.5X6.5 | φ3.5X7.5 | φ4.5X10 | φ5.5X14 | |
| Y2 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | |
| Z1 | 4 | 4 | 4 | 4 | 4 | |
| Z2 | M3X6 | M3X6 | M3X8 | M3X10 | M4X16 | |
| Housing inner wall | Φa | 38 | 45 | 53 | 66 | 86 |
| b | 1 | 1 | 1.5 | 1.5 | 1.5 | |
| Φc | 31 | 38 | 45 | 56 | 73 | |
| d | 1.7 | 2.1 | 2 | 2 | 2 | |
| e | D49585 | D59685 | D69785 | D84945 | D1101226 | |
| Weight(kg) | 0.41 | 0.57 | 0.81 | 1.31 | 2.94 | |
*Specification with * mark: The D/F/K indicate the mounting positions in the shaft direction and allowance of the three parts–wave generator, flex spline, circular spline. Strictly follow the requirement of these specifications as they affect the performance and intensity.
*Please note that in the circular spline there does not incorporate an O-ring groove (ymbol f). Please provide alternate sealing arrangements during the designing and installing.
*Due to the deformation of the Flexspline during operation, it is necessary to provide a minimum housing clearance, dimensions Φa, b, c.
*The wave generator is packed separately when the product is delivered.
*The following dimensions can be modified to accommodate customer-specific requirements. Wave Generator: C Flexspline: O and P
Circular Spline: X1 and X2
Outline Drawing/Dimension Table(SHF-2SH)
Note 1: It is recommended to have a housing undercut on the install concave.
Note 2: Refer to the confirmation drawing for detailed dimensions. Especially be certain to check the delivered specifications since the configuration of the wave generator varies depends on the size.
| Symbol\Model | 14 | 17 | 20 | 25 | 32 | |
|---|---|---|---|---|---|---|
| ΦA h6 | 50 | 60 | 70 | 85 | 110 | |
| φB1 | – | – | – | – | – | |
| C | 52.5+0 -0.1 | 56.5+0 -0.1 | 51.5+0 -0.1 | 55.5+0 -0.1 | 65.5+0 -0.1 | |
| D1* | SHF | 16+0.8+0 | 16+0.9+0 | 9.5+1.0+0 | 10+1.1+0 | 12+1.1+0 |
| D2 | 23.5 | 26.5 | 29 | 34 | 42 | |
| D3* | 13 | 14 | 13 | 11.5 | 11.5 | |
| E1 | 2.4 | 3 | 3 | 3.3 | 3.6 | |
| E2 | 14.1 | 16 | 17.5 | 18.7 | 23.4 | |
| E3 | 7 | 7.5 | 8.5 | 12 | 15 | |
| F | 6 | 6.5 | 7.5 | 10 | 14 | |
| φG H6 | 48 | 60 | 70 | 88 | 114 | |
| φH h6 | 70 | 80 | 90 | 110 | 142 | |
| Wave generator dimensions | l1 | 20±0.1 | 21.5±0.1 | 19±0.1 | 20±0.1 | 29±0.1 |
| l2 | 20±0.1 | 21.5±0.1 | 20±0.1 | 22.5±0.1 | 23.5±0.1 | |
| (13) | 12.5 | 13.5 | 12.5 | 13 | 13 | |
| J1 | 2.5 | 2.5 | – | – | – | |
| J2 | 7 | 7 | 7 | 6.5 | – | |
| J3 | 7 | 7 | 7 | 6.5 | – | |
| J4 | – | – | – | – | – | |
| K1 | – | – | – | – | – | |
| K2 | – | – | – | – | – | |
| φL1 | 22 | 27 | 32 | 42 | 47 | |
| φL2 j6 | 20 | 25 | 30 | 40 | 45 | |
| φL3 h9 | – | – | – | 38 | – | |
| φL4 H7 | 14 | 19 | 21 | 29 | 36 | |
| φL5 f7 | 20 | 25 | 30 | – | 45 | |
| ΦM1 | 22 | 27 | 32 | 42 | 49 | |
| φM2 h7 | 20 | 25 | 30 | 38 | 45 | |
| φM3 | – | – | – | – | 42.5 | |
| φM4 H7 | 14 | 19 | 21 | 29 | 36 | |
| ΦN1 j6 | 20 | 25 | 30 | 40 | 45 | |
| ΦN2 | 14.5 | 19.5 | 21.5 | 29.5 | 36.5 | |
| 01 | 10 | 10 | 10 | 10 | 10 | |
| 02 | 22.5 | 24.5 | (19.5) | 22.5 | (30.5) | |
| 03 | 20 | 22 | 22 | 23 | 25 | |
| P1 | 3 | 3 | 6 | 6 | 6 | |
| P2 | M3 | M3 | M3X6 | M3X6 | M3X6 | |
| φP3 | – | – | 0.25 | 0.25 | 0.25 | |
| Q1 | 8 | 12 | 12 | 12 | 12 | |
| φ02 | 3.5 | 3.5 | 3.5 | 4.5 | 5.5 | |
| φ03 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | |
| ΦR | 64 | 74 | 84 | 102 | 132 | |
| φS | – | – | 25.5 | 33.5 | 40.5 | |
| T1 | 2 | 4 | 4 | 4 | 4 | |
| T2 | M3X6 | M3X6 | M3X8 | M3X8 | M4X8 | |
| T3(angle) | 22.5° | 15° | 15° | 15° | 15° | |
| φU | 44 | 54 | 62 | / | 100 | |
| V1 | 8 parts of 12 equally divided ones | 16 parts of 20 equally divided ones | 16 | 16 | 16 | |
| V2 | M3X5 | M3X6 | M3X6 | M4X7 | M5X8 | |
| V3 | φ3.5X6 | φ3.5X6.5 | φ3.5X7.5 | φ4.5X10 | φ5.5X14 | |
| V4 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | |
| W1 | 4 | 4 | 4 | 4 | 4 | |
| W2 | M3X6 | M3X6 | M3X8 | M3X10 | M4X16 | |
| Minimum housing clearance | φa | 38 | 45 | 53 | 66 | 86 |
| b | 1 | 1 | 1.5 | 1.5 | 1.5 | |
| Φc | 31 | 38 | 45 | 56 | 73 | |
| d | 1.7 | 2.1 | 2 | 2 | 2 | |
| e | D49585 | D59685 | D69785 | D84945 | D1101226 | |
*Specification with * mark: The D/F/K indicate the mounting positions in the shaft direction and allowance of the three parts–wave generator, flex spline, circular spline. Strictly follow the requirement of these specifications as they affect the performance and intensity. *Please note that in the circular spline there does not incorporate an O-ring groove (Symbol f). Please provide alternate sealing arrangements during the designing and installing.
Configuration Options
- Custom output shafts, input gears, and motor mounting flanges on request
- Prototype samples through production volumes
Applications
- Robot arms
- Precision positioners
- Machine tools
- Aerospace mechanisms
When to Choose This Model
Choose harmonic or cycloidal reducers for high reduction ratios with compact size and high torsional stiffness.
Frequently Asked Questions
What is the SHF(Simple Unit Type) used for?
The SHF(Simple Unit Type) is used in OEM motion-control applications. Contact us to match torque, speed, and mounting to your design.
Can you customize this model?
Yes. Output shafts, ratios, input gears, and motor mounting interfaces can be customized for OEM programs.
How do I get pricing and lead time?
Request a quote with your quantity, target specs, and timeline. We typically respond within one business day.
Ready to spec your next motion system?
Talk to a Source Engineering application specialist. No obligations, just answers.