Fortress Renders
Fortress
Fortress
Fortress
Fortress Renders
Fortress
Fortress
Fortress

Fortress® Stainless Steel

Stainless steel offers resistance to the most caustic environments and the unique contour design reduces the build-up of bacteria in those hard to reach areas

With Sumitomo’s all new Fortress gearbox, never worry about paint again.

  • Smooth contoured housing
  • 304SS stainless steel housing
  • All steel internal gearing
  • Hypoidal gearing technology
  • IP69K Rated
  • Maintenance free grease lubricated for life
Input Hollow Quill
HP Rating 1/2 HP to 2 HP(1.5 kW)
Output Diameter 3/4in to 1-7/16in (Solid Shaft)
Torque Up to 1,970 Ib•n (223 N•m)
Ratio Range Specs 7:1 up to 60:1
Mounting Keyed Hollow Bore, B5 Flange, Foot-Mount and Solid Shaft
Options Torque Arm, Drilled and tapped holes in base and face, Casett Seals
93%
Gear Efficiency
IP69K
Washdown Rating
304SS
Cast Stainless Steel Housing

Hypoid Gearing

Long-lasting hypoid gear efficiencies up to 93% with smooth and quiet operation

Stainless Steel

Cast to a smooth 60RMS rating, the 304 stainless housing resits corrosion and reduces bacteria build up

Contoured Housing

Unique smooth design reduces the build-up of bacteria in those hard to reach areas

Maintenance Free

FDA approved synthetic grease, lubricated for life

Cassette Seals

Antimicrobrial FKM Shaft Isolator seal packed with food grade grease and all stainless steel wearing ring and springs

NEMA Quill Input

Simple quill design provides a worry free motor connection

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There are many accessories for use with the Helical Shaft Mount (HSM). Our patented Taper Grip Bushing is well suited for any application. A motor mount, backstop, torque arm, ABS belt guard, belts, breathers, sheaves and harsh duty seals are all accessories that work well with the HSM for any application. Also available are screw conveyor shafts, screw conveyor adaptor kits and screw conveyor seal kits. 

Backstops are safety devices and have to be inspected at regular time intervals.  The periodical inspection is to be carried out by authorized personnel.  The frequency of the inspection depends on the type of application.  Please refer to the P4 service manual for recommended inspection intervals

Hansen P4 units use one of the following systems:

  • Splash Lubrication (standard with horizontal shaft gear units for speeds between 750 and 1800RPM at the high speed shaft.  Gears and output shaft bearings are lubricated by immersion in the oil bath.  Oil splash from gears fill the oil pockets in the housing, assuring gravity circulation lubrication of the bearings via channels in the housing and covers.)
  • Force Feed Lubrication (all rotating elements above oil bath level are lubricated by a gear pump forcing the oil through pressure lines.  Forced feed lubrication is available as circulation lubrication or pressure lubrication.

In general terms, the speeds are 1750 and 1165 RPM. The selection tables in our catalog are based on 1750, 1165, 870, 580, and 50 RPM. When non-standard input speeds are used, the kilowatt (or horsepower) and torque ratings also vary.

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.

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 limitions due to heat.

To select the proper reducer for your application, you need to know: Application: type of driven machine 
Hours of operation per day 
Motor horsepower (HP) and speed (RPM) 
Mounting position 
Ambient environment (altitude, dusty, chemical, explosive, water) 
Ambient temperature and humidity 
You must also note any special environment factors or operational requirements. This information will be important in determining your application's service factor.

This is because Cyclo has a high teeth engagement rate. Since the Cyclo gearing has two-thirds of its reduction components in contact at all time, it can withstand higher shock loads and is more stable than traditional involute gearing.

Models having an "N" after the nomenclature symbol "C (Cyclo)," are universal mounting models that can be mounted in any direction . However, when there is an "H (horizontal)," "V (vertical with slow speed shaft downward)" or "W (vertical type with slow speed shaft upward)," after the "C," the unit cannot be mounted in any direction other than the one specified.

Mounting bolts are not included. Refer to the maintenance manual for mounting bolt specifications.

Generally, Cyclo® Drives allow for input at 3600r/min for up to 3HP, 6:1 to 87:1 ratio. For more than 3HP, it varies depending on frame size and reduction ratio. Many Cyclo models can accept input speeds of up to 3,600 RPM. However, the maximum allowable input speed is dependent upon the model number and the reduction ratio.

Theoretically any combination is available by multiplying single reduction ratios: 6, 8, 11, 13, 15, 17, 21, 25, 29, 35, 43, 51, 59, 71, 87, and 119:1.

The standard ratings for Cyclo 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.

Cyclo® BBB4 Speed Reducers provide 300% momentary intermittent shock load capacity. For applications with shock loads greater than 300%, consult a Sumitomo Application Engineer.

Cyclo frame size 606 to 612# are called “MF: Maintenance Free.” Grease replenishment is not required for normal operating conditions, and grease fittings are not utilized. Sumitomo recommends overhaul and grease change at 20,000 hours or 4-5 years. However, when the Cyclo uses special grease for high or low ambient temperature and grease fittings are installed, then grease replenishment and grease changes are required according to the appropriate factory schedule.

Cyclo® is a type of internal planetary gear. The planetary gear has cycloidal-shaped teeth. All torque-transmitting parts roll, not grind. Unlike the normal involute teeth with limited contact points, a Cyclo has two-thirds of its reduction components in contact at all times. Multiple teeth share the load, so therefore the Cyclo® is not susceptible to tooth breakage.

Selection should be made based on required Service factor. The Service Factor value depends on the load characteristics and operation time for the customer’s application.

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.

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.

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.

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.

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.

A gear tooth, such as that of Paramax, with a 25-degree pressure angle provides for greater torque transmission due to its wider dedendum. It is also important in minimizing tooth breakage due to shock loading.

Backstops are safety devices and have to be inspected at regular time intervals.  The periodical inspection is to be carried out by authorized personnel.  The frequency of the inspection depends on the type of application.  Please refer to the P4 service manual for recommended inspection intervals

Hansen P4 units use one of the following systems:

  • Splash Lubrication (standard with horizontal shaft gear units for speeds between 750 and 1800RPM at the high speed shaft.  Gears and output shaft bearings are lubricated by immersion in the oil bath.  Oil splash from gears fill the oil pockets in the housing, assuring gravity circulation lubrication of the bearings via channels in the housing and covers.)
  • Force Feed Lubrication (all rotating elements above oil bath level are lubricated by a gear pump forcing the oil through pressure lines.  Forced feed lubrication is available as circulation lubrication or pressure lubrication.

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.

Mineral oils containing EP additives, which increase oil film load capacity should be used.  Refer to the P4 service manual for recommended oil types. 

The first oil change should be carried out preferably after 100 hours and not more than 800 hours of operation.  The removed oil may be used again after filtering.  Filter the oil volume at least 10 times using a 10mm filter or smaller.  Subsequently the oil should be renewed after 4000 to 8000 hours or maximum of 18 months of operation depending on working conditions.  Please refer to service manual for detailed oil change instructions.

Cyclo® BBB5 Speed Reducers provide 300% momentary intermittent shock load capacity. For applications with shock loads greater than 300%, consult a Sumitomo Application Engineer.

Visit our Cyclo® BBB4 Product Configurator to find the exact match for your applications.

The standard ratings for Cyclo® BBB5 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.  Sumitomo recommend our Cyclo® BBB4 product for extremely severe operating conditions, as it is a more robust right-angle gearbox design.

Yes, 1.25:1 thru 5:1 in the parallel shaft configuration; and 1.6:1 thru 4:1 in the right angle shaft configuration.

Yes, 1.25:1 thru 5:1 in the parallel shaft configuration; and 1.6:1 thru 4:1 in the right angle shaft configuration.

Yes, many options exist for integral backstop; consult the factory for design details.

Up to 5 million inch-pounds, or more than 550 kiloNewtons

Yes, but these are options, and require additional design lead time.

Please consult a Sumitomo Sales Representative. They will review your application and provide an optimum Paramax selection.

While all gearboxes maintain thermal limitations, our new Paramax 9000 series has been improved to provide an 87% higher thermal rating over the previous series. This results from optimizing the units' fan cooling system as well as the airflow over the surface. 

A gear tooth, such as that of Paramax, with a 25-degree pressure angle provides for greater torque transmission due to its wider dedendum. It is also important in minimizing tooth breakage due to shock loading.

Special voltage, dust-proof, humidity-proof, high-temp, special shaft, CSA and NEMA standard conformance options are available.

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: III, 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.

Emergency After-Hours Support

757-485-3355

Sumitomo’s Product Support offers scheduled repair services as a one-stop-shop for all your related gearbox needs. For emergency repairs, we offer repair services 24 hours a day, 7 days a week.