Overview
The Sumitomo CHHJS4145Y-87 is a single-stage SM-Cyclo speed reducer engineered for reliable speed reduction in demanding industrial environments. With its 87:1 reduction ratio and compact inline design, this unit delivers consistent performance in applications requiring high torque and smooth operation. The SM-Cyclo series is built on cycloidal disc technology with distinctively smooth curves and unique circular-arc tooth profiles that prevent tooth breakage, resulting in durability and long service life.
Key Features
- 87:1 Reduction Ratio: Delivers precise speed reduction for optimal output shaft control
- Cycloidal Gear Design: Smooth, almost frictionless operation with thermal ratings that far exceed mechanical capacity
- Inline Configuration: Space-efficient design suitable for belt-drive and direct-drive installations
- High Load Capacity: Ductile iron housing rated for continuous heavy-duty service
- Low Maintenance: Grease-lubricated design minimizes service intervals
Technical Specifications
- Model Number: CHHJS4145Y-87
- Manufacturer: Sumitomo (SM-Cyclo)
- Reduction Ratio: 87:1 (single stage)
- Reducer Type: Inline speed reducer
- Housing Material: Ductile iron / Cast iron
- Standard Input Speed: 1750 RPM
- Lubrication: Grease-lubricated
- Condition: Used
Typical Applications
The CHHJS4145Y-87 is suited for a broad range of industrial machinery where compact, efficient speed reduction is required:
- Conveyor systems and material handling equipment
- Pump and fan drives
- Mixing and agitation equipment
- Winding and unwinding machinery
- Industrial automation and production line drives
- Any application requiring smooth torque transmission and shock-load resistance
Compatibility & Replacements
Compatible With
- Standard 1750 RPM motor inputs (1–5 HP range typical for this frame size)
- Electric motors with C-face or flange mounting
- Belt-drive and direct-drive configurations
- AGMA-rated industrial gearbox mounting standards
- Applications requiring 87:1 speed reduction with high-torque output
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The CHHJS4145Y-87 is a standard SM-Cyclo frame that may replace earlier model variants using the same frame size and 87:1 ratio requirement.
Works With
- AC induction motors (TEFC, open drip-proof)
- Servo motor inputs (up to specifications)
- Fixed-displacement and variable-speed motor controllers
- Torque-limiting couplings and safety clutches
- Standard shaft coupling standards (taper-lock bushings, flexible couplings)
