®Solid Shaft vs Hollow Shaft Gearbox
Solid and hollow output shafts solve different machine-interface problems. Hollow-shaft units can simplify shaft-mounted arrangements, while solid shafts suit couplings, pulleys and conventional driven-shaft connections.
Solid shaft
Often used with couplings, pulleys, sprockets or a separate driven shaft. Key dimensions include shaft diameter, extension and key.
Hollow shaft
Allows the machine shaft to enter the gearbox output. Key dimensions include bore, key/spline or shrink-disc interface, shaft insertion direction and axial retention.
For replacement work, a base size alone is not enough to prove hollow-shaft interchangeability.
How this applies to R, F, K and S gear units
The same engineering principle applies across the CHINFAR four-series platform, but the mechanical layout changes: R is inline/near-inline, F is parallel-shaft, and K/S are right-angle families. Use the principle to define the requirement, then select a configuration within the appropriate family.
Related product families
- R Series Helical Gear Unit
- F Series Parallel Shaft Helical Gear Unit
- K Series Helical-Bevel Gear Unit
- S Series Helical-Worm Gear Unit
Related products & technical resources
Need a gearbox configuration for your machine?
Send the required motor power, input speed, target output speed or ratio, expected output torque, mounting arrangement, and any installation drawing available. CHINFAR can use these inputs to narrow the R/F/K/S configuration before final engineering confirmation.
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