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.
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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.
I don’t like the turnbuckle torque arms and sometimes have reversing applications they don’t work well for, do you have another option?
Yes, we have 6 different torque arm options to make your installation easy.
What if I need to change the backstop rotation?
No problem, your Sumitomo rep can assist with that, we can instruct you how, or you can send it to us to do.
I have a problem with backstops failing regularly, can a Cyclo® BBB4 fix that problem?
The BBB has a different design when it comes to the backstop.
- Our backstop is at the high-speed shaft achieving lift off easily and not creating drag and wear on the spragues
- Our backstop being at the high-speed shaft sees the least amount of torque. The combination of the backstop ratings being higher, and seeing less torque, results in a long life
- Our backstop is maintenance-free (no lubrication maintenance) and is sealed off from the reducer protecting the reducer from the backstop and the backstop from the reducer. There is no unified lubrication system between the two.
Can I adjust the speed with a direct drive like I can with a belt drive?
Not by changing a sheave size since that component is eliminated, but there are things to consider…
- How often are you really changing the speed?
- The flexibility of changing a sheave size also puts your system at risk. Are you overspeeding beyond the reducer's capabilities? Are you slowing down too much and causing the backstop spragues to drag and wear?
If you are utilizing a VFD, that can control your speed.
- If you find out you truly need to change your speed, our BBB is the only direct drive on the market that has a Cyclo cartridge that could be changed to change your overall speed eliminating the need for a whole new reducer. Work with your Sumitomo rep to consider this.
My belts are my weak spot, what is the weak spot in a direct drive?
Our BBB (for typically 50hp and under depending on ratio) is designed for momentary high shock load – higher than any direct drive in the industry through utilizing our Cyclo technology. Another safeguard that can be put in place include the following:
- BBB’s are designed and sized where the motor would amp out before any damage would be done to the reducer
- Can adjust the motor heater for additional safety measures if desired
- A torque limiting or shear coupling could be used within the c-face adaptor as an additional safety measure if desired
I don’t have a very long shaft, can I still replace a belt drive with a direct drive?
Yes, if our standard Taper Grip Bushing requires more shaft than you have, we have a new Taper Grip Bushing option that needs an average of ½ the shaft length. When we size up the reducer you need, we can tell you how much shaft length you need for both options.
What should be some features or upgrades I should consider for the Aggregate, Sand and Cement industries?
Taconite Seals, Severe Duty or Desiccant Breather
What is the difference in the mounting positions of the Cyclo® BBB4?
The mounting positions for the Cyclo® BBB4 detail the position of the unit relative to the driven shaft. The mounting position effects how the unit is assembled and maintained (i.e., location of oil fill ports, type of lubrication, breather location, etc.). You must specify the mounting position at the time of order.
What kind of torque arm do I specify? At what position should I mount it?
The standard torque arm assembly supplied is a turnbuckle type as shown in our catalog. The torque arm should be mounted at 90 degrees to a line from the point of attachment to the reducer and the center of the output bore with up to 30 degrees plus or minus variance. A bracket type torque arm is also offered as a non-stock option. In addition, we provide the Banjo-type and T-type torque arm mounting configurations.
What are the advantages of the new Steel Taper-Grip® bushing?
With an increased torque capacity, the new Steel Taper-Grip® bushing can be used in reversing and/or high start-up applications. The new Steel Taper-Grip®bushing can be used on all Taper-Grip® products.
