Cyclo® Bevel Buddybox® 4 Series Speed Reducer
Right-Angle Spiral-Bevel Reducers with Cyclo® Input
Robust, state-of-the-art, spiral-bevel reducers.
- All-Steel Internal Components
- Highly Efficient
- Standard Ductile-Iron Housing
- Integrated-Cycloidal Technology
- Maintenance-Free Options Available
| Input | Quill and C-face adapter |
| Output | Shrink Disc, Taper-Grip® Bushing, Solid Shaft, Keyed Hollow Bore, Screw Conveyor |
| Mounting | Hollow Shaft, Foot, Flange, U-Face (direct surface mount) |
| Sizes | 6 frame sizes (A-F), 48 to 1059 kg |
| Ratios | 11:1 to 26,000:1 and greater |
| Power Range | 1/8 to 100HP (0.10kW to 75kW) |
| Torque Capacity | Up to 159,313 lb-in (18,000 Nm) |
| Motor Standards | NEMA, IEC, JIS, UL, CSA, CE |
Cyclo® BBB4
The Cyclo® BBB4 combines the strength and flexibility of the Cyclo® gear reducer and a single-stage right-angle spiral-bevel gearbox in a rugged right-angle gearbox design. With a 24-month warranty, regardless of hours of operation, the Cyclo® BBB4 is an excellent choice for applications in material handling, asphalt mixers, specialty machine industries, conveyors, and other applications requiring right-angle speed reducers.
Key Facts
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FAQ
Do you have questions about the Cyclo® BBB4? Below are some of our most commonly asked questions, or you can view our Support area under Knowledge for more frequently asked questions and answers.
What are the advantages of the Taper-Grip® bushing?
The Taper-Grip® bushing is integral to the Cyclo® BBB4 and provides for easy mounting and removal to and from the shaft of the driven machine. Because it requires no key way, the shaft isn’t weakened and maximum torque is transmitted.
What thermal capacity limitations does the Cyclo® BBB4 have?
The Cyclo® speed reducer, by virtue of its smooth, almost frictionless operation (unlike traditional helical gears), has a thermal rating that far exceeds its mechanical capacity and all but eliminates the conventional limitations due to heat.
How can I be sure that the reducer can withstand periodic excessive overloads?
Cyclo® BBB4 Speed Reducers provide 300% momentary intermittent shock load capacity. For applications with shock loads greater than 300%, consult a Sumitomo Application Engineer.
Can the Cyclo® BBB4 handle severe operating conditions?
The standard ratings for Cyclo® BBB4 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 the 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 are the standard input speeds?
In general terms, the speeds are 1750 and 1165 RPM. The selection tables in our catalog are based on 1750 RPM. When other input speeds are used, the horsepower and torque ratings will vary.
How do I select a Cyclo® BBB4 reducer or gearmotor?
Visit our Cyclo® BBB4 Product Configurator to find the exact match for your applications.
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