SPG KSR Hollow Shaft Low-Backlash Reducers (10C-500C)

SPG KSR series hollow shaft cycloidal reducer, frames 10C to 500C, rated output torque 10-500 kgf-m.

Key features

Hollow shaft through the centre for cables, hoses and shafts
2-stage reduction for efficient machine design
Low backlash (1 arcmin class) for robot joints and indexing
High output torque and high stiffness
Ratios per frame exactly as the coding chart lists them

Specifications

Model form	KSR-<frame>C-<ratio>
Reducer principle	Cycloid disc with crank shafts, 2-stage
Rated output speed	15 rpm
Backlash	1 arcmin
Angular transmission accuracy	60 arcsec
Moment rigidity	43-2500 kgf-m/arcmin
Lubrication	Grease (not filled at shipment)
Source	SPG KSR Low Backlash Reducer catalog, p. 5, 8-9

KSR-10C-27		Frame: 10C \| Ratio: 27 \| Rated torque: 10 kgf-m \| Allowable moment: 70 kgf-m \| Weight: 4.6 kg \| Availability: Consult SPG
KSR-27C-36.57		Frame: 27C \| Ratio: 36.57 \| Rated torque: 27 kgf-m \| Allowable moment: 100 kgf-m \| Weight: 8.5 kg \| Availability: Standard
KSR-50C-32.54		Frame: 50C \| Ratio: 32.54 \| Rated torque: 50 kgf-m \| Allowable moment: 180 kgf-m \| Weight: 14.6 kg \| Availability: Standard
KSR-100C-36.75		Frame: 100C \| Ratio: 36.75 \| Rated torque: 100 kgf-m \| Allowable moment: 250 kgf-m \| Weight: 19.5 kg \| Availability: Standard
KSR-200C-34.86		Frame: 200C \| Ratio: 34.86 \| Rated torque: 200 kgf-m \| Allowable moment: 900 kgf-m \| Weight: 55.6 kg \| Availability: Standard
KSR-320C-35.61		Frame: 320C \| Ratio: 35.61 \| Rated torque: 320 kgf-m \| Allowable moment: 2100 kgf-m \| Weight: 79.5 kg \| Availability: Standard
KSR-320C-171		Frame: 320C \| Ratio: 171 \| Rated torque: 320 kgf-m \| Allowable moment: 2100 kgf-m \| Weight: 79.5 kg \| Availability: Standard
KSR-320C-210		Frame: 320C \| Ratio: 210 \| Rated torque: 320 kgf-m \| Allowable moment: 2100 kgf-m \| Weight: 79.5 kg \| Availability: Standard
KSR-500C-37.34		Frame: 500C \| Ratio: 37.34 \| Rated torque: 500 kgf-m \| Allowable moment: 3500 kgf-m \| Weight: 154 kg \| Availability: Standard

Cycloidal ReducersSPG

9 product codes available in this family

Sourced direct from KoreaExport-ready supplyCompetitive pricing

RFQ List 0 Email about this

Need a different model, or a part not listed here? Send us your parts list →

SPG KSR Hollow Shaft Low-Backlash Reducers (10C-500C)

Brand SPG·Cycloidal Reducers

Available part numbers (9)

KSR-10C-27, KSR-27C-36.57, KSR-50C-32.54, KSR-100C-36.75, KSR-200C-34.86, KSR-320C-35.61, KSR-320C-171, KSR-320C-210, KSR-500C-37.34

How to order

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.

RFQ List 0 →

View full details

Item added to your cart

SPG KSR Hollow Shaft Low-Backlash Reducers (10C-500C)