• SPG KSH Simple Unit Silk-Hat Strain Wave Gear Units (Size 14-32)
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SPG KSH Simple Unit Silk-Hat Strain Wave Gear Units (Size 14-32)

SPG KSH Simple Unit Silk-Hat Strain Wave Gear Units (Size 14-32)

SPG KSH series simple unit silk-hat strain wave gear reducer, simple unit with silk-hat flexspline and cross roller bearing, in sizes 14-32 with reduction ratios 1/50 to 1/120.

Key features

  • Simple unit with silk-hat flexspline and cross roller bearing; input shaft changeable
  • Standard (SN) or hollow (SH) input option per the coding chart
  • Zero backlash with high positioning and rotational accuracy
  • High torque capacity and high torsional stiffness
  • Sizes 14, 17, 20, 25, 32; ratios 50, 80, 100, 120 (size 14: 50-100)
  • Rated torque 5.5-137 Nm at 2,000 rpm input

Specifications

Model form KSF-<size>-<ratio>-SN/SH
Reducer principle Strain wave gear (flexspline / circular spline / wave generator)
Backlash Zero backlash
Max. input speed (oil) 14,000 / 10,000 / 10,000 / 7,500 / 7,000 rpm (size 14/17/20/25/32)
Max. input speed (grease) 8,500 / 7,300 / 6,500 / 5,600 / 4,800 rpm (size 14/17/20/25/32)
Avg. input speed (grease) 3,500 rpm
Transmission accuracy 1.5 arcmin (size 14-17), 1 arcmin (size 20-32)
Inertia (x10^-4 kgm2) 0.033 / 0.079 / 0.193 / 0.413 / 1.69 (size 14-32)
Weight (SN) 0.41 / 0.57 / 0.81 / 1.31 / 2.94 kg (size 14-32)
Source SPG KSH Precision Reducer catalog, p. 5, 15-17
KSF-14-050-SN Size: 14 | Ratio: 1/50 | Rated torque: 5.5 Nm | Start/stop torque: 18 Nm | Momentary max torque: 35 Nm | Input: Standard (N)
KSF-14-080-SN Size: 14 | Ratio: 1/80 | Rated torque: 8 Nm | Start/stop torque: 23 Nm | Momentary max torque: 47 Nm | Input: Standard (N)
KSF-14-100-SN Size: 14 | Ratio: 1/100 | Rated torque: 8 Nm | Start/stop torque: 28 Nm | Momentary max torque: 54 Nm | Input: Standard (N)
KSF-17-050-SN Size: 17 | Ratio: 1/50 | Rated torque: 16 Nm | Start/stop torque: 34 Nm | Momentary max torque: 70 Nm | Input: Standard (N)
KSF-17-080-SN Size: 17 | Ratio: 1/80 | Rated torque: 22 Nm | Start/stop torque: 43 Nm | Momentary max torque: 87 Nm | Input: Standard (N)
KSF-17-100-SN Size: 17 | Ratio: 1/100 | Rated torque: 24 Nm | Start/stop torque: 54 Nm | Momentary max torque: 110 Nm | Input: Standard (N)
KSF-17-120-SN Size: 17 | Ratio: 1/120 | Rated torque: 24 Nm | Start/stop torque: 54 Nm | Momentary max torque: 86 Nm | Input: Standard (N)
KSF-20-050-SN Size: 20 | Ratio: 1/50 | Rated torque: 25 Nm | Start/stop torque: 56 Nm | Momentary max torque: 98 Nm | Input: Standard (N)
KSF-20-080-SN Size: 20 | Ratio: 1/80 | Rated torque: 34 Nm | Start/stop torque: 74 Nm | Momentary max torque: 127 Nm | Input: Standard (N)
KSF-20-100-SN Size: 20 | Ratio: 1/100 | Rated torque: 40 Nm | Start/stop torque: 82 Nm | Momentary max torque: 147 Nm | Input: Standard (N)
KSF-20-120-SN Size: 20 | Ratio: 1/120 | Rated torque: 40 Nm | Start/stop torque: 87 Nm | Momentary max torque: 147 Nm | Input: Standard (N)
KSF-25-050-SN Size: 25 | Ratio: 1/50 | Rated torque: 39 Nm | Start/stop torque: 98 Nm | Momentary max torque: 186 Nm | Input: Standard (N)
KSF-25-080-SN Size: 25 | Ratio: 1/80 | Rated torque: 63 Nm | Start/stop torque: 137 Nm | Momentary max torque: 255 Nm | Input: Standard (N)
KSF-25-100-SN Size: 25 | Ratio: 1/100 | Rated torque: 67 Nm | Start/stop torque: 157 Nm | Momentary max torque: 284 Nm | Input: Standard (N)
KSF-25-120-SN Size: 25 | Ratio: 1/120 | Rated torque: 67 Nm | Start/stop torque: 167 Nm | Momentary max torque: 304 Nm | Input: Standard (N)
KSF-32-050-SN Size: 32 | Ratio: 1/50 | Rated torque: 76 Nm | Start/stop torque: 216 Nm | Momentary max torque: 382 Nm | Input: Standard (N)
KSF-32-080-SN Size: 32 | Ratio: 1/80 | Rated torque: 118 Nm | Start/stop torque: 304 Nm | Momentary max torque: 568 Nm | Input: Standard (N)
KSF-32-100-SN Size: 32 | Ratio: 1/100 | Rated torque: 137 Nm | Start/stop torque: 333 Nm | Momentary max torque: 647 Nm | Input: Standard (N)
KSF-32-120-SN Size: 32 | Ratio: 1/120 | Rated torque: 137 Nm | Start/stop torque: 353 Nm | Momentary max torque: 686 Nm | Input: Standard (N)
KSF-14-050-SH Size: 14 | Ratio: 1/50 | Rated torque: 5.5 Nm | Start/stop torque: 18 Nm | Momentary max torque: 35 Nm | Input: Hollow (H)
KSF-14-080-SH Size: 14 | Ratio: 1/80 | Rated torque: 8 Nm | Start/stop torque: 23 Nm | Momentary max torque: 47 Nm | Input: Hollow (H)
KSF-14-100-SH Size: 14 | Ratio: 1/100 | Rated torque: 8 Nm | Start/stop torque: 28 Nm | Momentary max torque: 54 Nm | Input: Hollow (H)
KSF-17-050-SH Size: 17 | Ratio: 1/50 | Rated torque: 16 Nm | Start/stop torque: 34 Nm | Momentary max torque: 70 Nm | Input: Hollow (H)
KSF-17-080-SH Size: 17 | Ratio: 1/80 | Rated torque: 22 Nm | Start/stop torque: 43 Nm | Momentary max torque: 87 Nm | Input: Hollow (H)
KSF-17-100-SH Size: 17 | Ratio: 1/100 | Rated torque: 24 Nm | Start/stop torque: 54 Nm | Momentary max torque: 110 Nm | Input: Hollow (H)
KSF-17-120-SH Size: 17 | Ratio: 1/120 | Rated torque: 24 Nm | Start/stop torque: 54 Nm | Momentary max torque: 86 Nm | Input: Hollow (H)
KSF-20-050-SH Size: 20 | Ratio: 1/50 | Rated torque: 25 Nm | Start/stop torque: 56 Nm | Momentary max torque: 98 Nm | Input: Hollow (H)
KSF-20-080-SH Size: 20 | Ratio: 1/80 | Rated torque: 34 Nm | Start/stop torque: 74 Nm | Momentary max torque: 127 Nm | Input: Hollow (H)
KSF-20-100-SH Size: 20 | Ratio: 1/100 | Rated torque: 40 Nm | Start/stop torque: 82 Nm | Momentary max torque: 147 Nm | Input: Hollow (H)
KSF-20-120-SH Size: 20 | Ratio: 1/120 | Rated torque: 40 Nm | Start/stop torque: 87 Nm | Momentary max torque: 147 Nm | Input: Hollow (H)
KSF-25-050-SH Size: 25 | Ratio: 1/50 | Rated torque: 39 Nm | Start/stop torque: 98 Nm | Momentary max torque: 186 Nm | Input: Hollow (H)
KSF-25-080-SH Size: 25 | Ratio: 1/80 | Rated torque: 63 Nm | Start/stop torque: 137 Nm | Momentary max torque: 255 Nm | Input: Hollow (H)
KSF-25-100-SH Size: 25 | Ratio: 1/100 | Rated torque: 67 Nm | Start/stop torque: 157 Nm | Momentary max torque: 284 Nm | Input: Hollow (H)
KSF-25-120-SH Size: 25 | Ratio: 1/120 | Rated torque: 67 Nm | Start/stop torque: 167 Nm | Momentary max torque: 304 Nm | Input: Hollow (H)
KSF-32-050-SH Size: 32 | Ratio: 1/50 | Rated torque: 76 Nm | Start/stop torque: 216 Nm | Momentary max torque: 382 Nm | Input: Hollow (H)
KSF-32-080-SH Size: 32 | Ratio: 1/80 | Rated torque: 118 Nm | Start/stop torque: 304 Nm | Momentary max torque: 568 Nm | Input: Hollow (H)
KSF-32-100-SH Size: 32 | Ratio: 1/100 | Rated torque: 137 Nm | Start/stop torque: 333 Nm | Momentary max torque: 647 Nm | Input: Hollow (H)
KSF-32-120-SH Size: 32 | Ratio: 1/120 | Rated torque: 137 Nm | Start/stop torque: 353 Nm | Momentary max torque: 686 Nm | Input: Hollow (H)
Strain Wave Gear ReducersSPG
38 product codes available in this family
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SPG KSH Simple Unit Silk-Hat Strain Wave Gear Units (Size 14-32)

Brand SPG·Strain Wave Gear Reducers

Available part numbers (38)

KSF-14-050-SN, KSF-14-080-SN, KSF-14-100-SN, KSF-17-050-SN, KSF-17-080-SN, KSF-17-100-SN, KSF-17-120-SN, KSF-20-050-SN, KSF-20-080-SN, KSF-20-100-SN + 28 more — see full table ↓

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Send the SPG part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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RFQ List (0)
Product codeSpec
KSF-14-050-SNSize: 14 | Ratio: 1/50 | Rated torque: 5.5 Nm | Start/stop torque: 18 Nm | Momentary max torque: 35 Nm | Input: Standard (N)
KSF-14-080-SNSize: 14 | Ratio: 1/80 | Rated torque: 8 Nm | Start/stop torque: 23 Nm | Momentary max torque: 47 Nm | Input: Standard (N)
KSF-14-100-SNSize: 14 | Ratio: 1/100 | Rated torque: 8 Nm | Start/stop torque: 28 Nm | Momentary max torque: 54 Nm | Input: Standard (N)
KSF-17-050-SNSize: 17 | Ratio: 1/50 | Rated torque: 16 Nm | Start/stop torque: 34 Nm | Momentary max torque: 70 Nm | Input: Standard (N)
KSF-17-080-SNSize: 17 | Ratio: 1/80 | Rated torque: 22 Nm | Start/stop torque: 43 Nm | Momentary max torque: 87 Nm | Input: Standard (N)
KSF-17-100-SNSize: 17 | Ratio: 1/100 | Rated torque: 24 Nm | Start/stop torque: 54 Nm | Momentary max torque: 110 Nm | Input: Standard (N)
KSF-17-120-SNSize: 17 | Ratio: 1/120 | Rated torque: 24 Nm | Start/stop torque: 54 Nm | Momentary max torque: 86 Nm | Input: Standard (N)
KSF-20-050-SNSize: 20 | Ratio: 1/50 | Rated torque: 25 Nm | Start/stop torque: 56 Nm | Momentary max torque: 98 Nm | Input: Standard (N)
KSF-20-080-SNSize: 20 | Ratio: 1/80 | Rated torque: 34 Nm | Start/stop torque: 74 Nm | Momentary max torque: 127 Nm | Input: Standard (N)
KSF-20-100-SNSize: 20 | Ratio: 1/100 | Rated torque: 40 Nm | Start/stop torque: 82 Nm | Momentary max torque: 147 Nm | Input: Standard (N)
KSF-20-120-SNSize: 20 | Ratio: 1/120 | Rated torque: 40 Nm | Start/stop torque: 87 Nm | Momentary max torque: 147 Nm | Input: Standard (N)
KSF-25-050-SNSize: 25 | Ratio: 1/50 | Rated torque: 39 Nm | Start/stop torque: 98 Nm | Momentary max torque: 186 Nm | Input: Standard (N)
KSF-25-080-SNSize: 25 | Ratio: 1/80 | Rated torque: 63 Nm | Start/stop torque: 137 Nm | Momentary max torque: 255 Nm | Input: Standard (N)
KSF-25-100-SNSize: 25 | Ratio: 1/100 | Rated torque: 67 Nm | Start/stop torque: 157 Nm | Momentary max torque: 284 Nm | Input: Standard (N)
KSF-25-120-SNSize: 25 | Ratio: 1/120 | Rated torque: 67 Nm | Start/stop torque: 167 Nm | Momentary max torque: 304 Nm | Input: Standard (N)
KSF-32-050-SNSize: 32 | Ratio: 1/50 | Rated torque: 76 Nm | Start/stop torque: 216 Nm | Momentary max torque: 382 Nm | Input: Standard (N)
KSF-32-080-SNSize: 32 | Ratio: 1/80 | Rated torque: 118 Nm | Start/stop torque: 304 Nm | Momentary max torque: 568 Nm | Input: Standard (N)
KSF-32-100-SNSize: 32 | Ratio: 1/100 | Rated torque: 137 Nm | Start/stop torque: 333 Nm | Momentary max torque: 647 Nm | Input: Standard (N)
KSF-32-120-SNSize: 32 | Ratio: 1/120 | Rated torque: 137 Nm | Start/stop torque: 353 Nm | Momentary max torque: 686 Nm | Input: Standard (N)
KSF-14-050-SHSize: 14 | Ratio: 1/50 | Rated torque: 5.5 Nm | Start/stop torque: 18 Nm | Momentary max torque: 35 Nm | Input: Hollow (H)
KSF-14-080-SHSize: 14 | Ratio: 1/80 | Rated torque: 8 Nm | Start/stop torque: 23 Nm | Momentary max torque: 47 Nm | Input: Hollow (H)
KSF-14-100-SHSize: 14 | Ratio: 1/100 | Rated torque: 8 Nm | Start/stop torque: 28 Nm | Momentary max torque: 54 Nm | Input: Hollow (H)
KSF-17-050-SHSize: 17 | Ratio: 1/50 | Rated torque: 16 Nm | Start/stop torque: 34 Nm | Momentary max torque: 70 Nm | Input: Hollow (H)
KSF-17-080-SHSize: 17 | Ratio: 1/80 | Rated torque: 22 Nm | Start/stop torque: 43 Nm | Momentary max torque: 87 Nm | Input: Hollow (H)
KSF-17-100-SHSize: 17 | Ratio: 1/100 | Rated torque: 24 Nm | Start/stop torque: 54 Nm | Momentary max torque: 110 Nm | Input: Hollow (H)
KSF-17-120-SHSize: 17 | Ratio: 1/120 | Rated torque: 24 Nm | Start/stop torque: 54 Nm | Momentary max torque: 86 Nm | Input: Hollow (H)
KSF-20-050-SHSize: 20 | Ratio: 1/50 | Rated torque: 25 Nm | Start/stop torque: 56 Nm | Momentary max torque: 98 Nm | Input: Hollow (H)
KSF-20-080-SHSize: 20 | Ratio: 1/80 | Rated torque: 34 Nm | Start/stop torque: 74 Nm | Momentary max torque: 127 Nm | Input: Hollow (H)
KSF-20-100-SHSize: 20 | Ratio: 1/100 | Rated torque: 40 Nm | Start/stop torque: 82 Nm | Momentary max torque: 147 Nm | Input: Hollow (H)
KSF-20-120-SHSize: 20 | Ratio: 1/120 | Rated torque: 40 Nm | Start/stop torque: 87 Nm | Momentary max torque: 147 Nm | Input: Hollow (H)
KSF-25-050-SHSize: 25 | Ratio: 1/50 | Rated torque: 39 Nm | Start/stop torque: 98 Nm | Momentary max torque: 186 Nm | Input: Hollow (H)
KSF-25-080-SHSize: 25 | Ratio: 1/80 | Rated torque: 63 Nm | Start/stop torque: 137 Nm | Momentary max torque: 255 Nm | Input: Hollow (H)
KSF-25-100-SHSize: 25 | Ratio: 1/100 | Rated torque: 67 Nm | Start/stop torque: 157 Nm | Momentary max torque: 284 Nm | Input: Hollow (H)
KSF-25-120-SHSize: 25 | Ratio: 1/120 | Rated torque: 67 Nm | Start/stop torque: 167 Nm | Momentary max torque: 304 Nm | Input: Hollow (H)
KSF-32-050-SHSize: 32 | Ratio: 1/50 | Rated torque: 76 Nm | Start/stop torque: 216 Nm | Momentary max torque: 382 Nm | Input: Hollow (H)
KSF-32-080-SHSize: 32 | Ratio: 1/80 | Rated torque: 118 Nm | Start/stop torque: 304 Nm | Momentary max torque: 568 Nm | Input: Hollow (H)
KSF-32-100-SHSize: 32 | Ratio: 1/100 | Rated torque: 137 Nm | Start/stop torque: 333 Nm | Momentary max torque: 647 Nm | Input: Hollow (H)
KSF-32-120-SHSize: 32 | Ratio: 1/120 | Rated torque: 137 Nm | Start/stop torque: 353 Nm | Momentary max torque: 686 Nm | Input: Hollow (H)

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