Bevel Ball Actuators BB225 (15 Ton)


Joyce BB225 bevel ball actuators with a 15-ton static capacity, offer higher efficiency and greater speed than other mechanical screw jacks. These are among Joyce’s fastest jacks, able to attain travel speeds of 33.8 feet per minute. Available in Translating and KFTN designs, they act as miter boxes, making them an ideal choice for multi-jack systems. As many as three output shafts may be specified for mounting motors, limit switches, readout devices and other accessories.

  • 2 1/4” diameter lifting screw
  • Require a brake or other external locking device to hold position
  • Fully predictable J-10 ball nut life expectancy
  • Right hand screws standard (left hand screws available)
  • Threaded end conditions standard (load pad, clevis, and plain end conditions available)
  • Protective boots and other options are available

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   O&M Manual


   Common System Arrangement


   Product Information


   Ordering Information


    2D/3D Drawings or JAX Online

  • Ductile iron housing
  • Alloy steel ball screw
  • Input shaft CDS

Sample Part Number:

Click on the part number to reveal additional informaton about actuator designs and shaft codes.

Joyce Bevel Ball Actuators

Actuator Configuration

Actuator Configuration
Upright Bevel Ball Actuator configuration Inverted Bevel Ball actuator conversion
U= Upright I= Inverted

End Conditions

End Conditions
T1 T2 T3 T4
1 = T1 (plain end) 2= T2 (load pad) 3= T3 (threaded end) 4= T4 (male clevis)

Actuator Design

Actuator Design
Bevel Ball Translating Actuator Example Keyed for Non Rotation is not a standard Option Bevel Ball Actuator- Traveling nut example
S= Translating Keyed for Non Rotation is not a standard option N= Travelling Nut

Bevel Ball Actuator Rise

Bevel Ball Actuator Rise
Rise is travel expressed in inches and not the actual screw length
Shaft Codes
Three shaft codes must be specified for each jack. Electronic and mechanical limit switches may be substituted for the shaft code per the tables on this page.
STDX- Standard
XXXX- Input shaft no required
When ordering with only one input shaft, it is recommended to order the following configuration: XXXX-STDX-XXXX
Additional Options
X= Standard Actuators, no additional options
X= Additional Specification Required (comment as necessary)
Protective Boots
B= Protective Boot
D= Dual Protective Boot
F1= Do Not Paint
F2= Epoxy Paint
F3= Outdoor Paint processes
Ball Screw
L= Left hand Screw
Screw Stops
Extending stops standard (specify as many options as needed)
ModelDynamic CapacityUpright or Inverted Assembly: Screw-in tensionUpright or Inverted Assembly: Screw-in compressionScrew Dia./LeadBevel Gear RatioPinion Turns for 1" TravelPinion Torque (Raising)Pinion Torque (Holding)Screw TorqueActuator EfficiencyBase Weight (Lbs.)Add for Each Inch of Travel (Lbs.)
BB225 Please use JAX® V2 software or contact Joyce/Dayton 30,000 lbs. 30,000 lbs. 2.25/.50 2.15:1 4.31 .054W* .044W* .089W* 72.2% 200 2.6


Important Note: Bevel Ball Actuators are not self-locking. Brake motors or external locking systems are required.
*W: Load in Pounds.
Pinion Torque (raising): The torque required to continuously raise a given load.
Pinion Torque (holding): The torque required to hold a given static load in position.
Screw Torque: The torque required to resist screw rotation (translating design) and traveling nut rotation (KFTN design).
Lead: The distance traveled axially in one rotation of the lifting screw.
Pitch: The distance from a point on the screw thread to a corresponding point on the next thread, measured axially.

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