Frequently Asked Questions
Do you have questions about our products or services? Below are some of our most commonly asked question.
What are the standard input speeds?
In general terms, the speeds are 1750 and 1450 RPM. The selection tables in our catalog are based on 1750 RPM. The reducer selection tables show ratings at 1750 RPM for Quill models, and 1750 and 1450 for C-face models.
How can I be sure that the reducer can withstand periodic excessive overloads?
Hyponic® speed reducers provide 250% momentary intermittent shock load capacity. For applications with shock loads greater than 250%, consult a Sumitomo Application Engineer.
What do I do if my application has particularly severe operating conditions?
The standard ratings for Hyponic® are based on 10-hour daily service under conditions of uniform loads (equivalent to AGMA service factor 1.0). By following the product selection process outlined in our catalog, you will determine and apply the Service Factors to compensate for severe operating conditions.
What are service factors and how are they used?
In general, reducers and gearmotors are rated for specific conditions and operating requirements of the application by the use of AGMA-defined Service Factors. There are three AGMA load classifications for reducers: uniform (U), moderate shock (M) and heavy shock (H), and three AGMA load classifications for gearmotors: I, II, and III. Refer to our catalog for a list of AGMA load classifications. These Service Factors are used in the product selection process to adjust for the specific conditions and operating requirements of your application.
What information do I need to get started in the selection process?
To select the proper reducer for your application, you will need to know:Application: type of driven machine
Hours of operation per day
Motor horsepower (HP) and speed (RPM)
Loading Conditions
Mounting Position
Ambient environment (altitude, dusty, chemical, explosive, water)
Ambient temperature and humidity
You must also note any special environment factors or operation requirements. This information will ve important in determining your application's service factor.
How do I select a Hyponic® reducer or gearmotor?
Selection is based on the actual horsepower and/or torque requirements at the output shaft. The Hyponic® speed reducer has particularly high efficiencies over a wide range of reduction ratios, which frequently permits the use of reduced input power requirements (smaller HP motor) without sacrificing output shaft torque. The selection procedures in our catalog will guide you in choosing the most efficient reducer for your application.
What are the advantages of the Hyponic® reducer over other right angle drives?
Hyponic® uses hypoid gearing, which is more efficient than worm gearing and quieter than bevel gearing. It is superior within the right-angle drives.
What are the advantages of the Hyponic® reducer over other right angle drives?
Hyponic® uses hypoid gearing, which is more efficient than worm gearing and quieter than bevel gearing. It is superior within the right-angle drives.
I want to change the motor on a Hyponic® unit. How can I do this?
The Hyponic® motor cannot be replaced because the hypoid gear is controlled as a set with the motor shaft. Contact our Aftermarket Department for replacement service.
What options are available for the precision reducers?
We offer almost any desired option, from a motor adapter to an assembly that includes the motor and is ready for mounting right out of the box. Contact your Sumitomo representative for more details.