Print- Right hand thread standard
- Left hand thread available on many models
- Special pitch/lead available
- Special finishes available
- Special machining options
1-800-523-5204 or 1-937-294-6261
Bevel Ball Jacks
Joyce Bevel Ball Actuators (BB), available in 7.5-ton to 100-ton static capacities, are designed for near-continuous duty operation. These are Joyce’s fastest jacks, able to attain travel speeds of 48.6 feet per minute. Available in Translating and KFTN designs, bevel ball actuators 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.
- Higher speeds and less heat generation than other mechanical actuators
- Require a brake or other external locking device to hold position
- More precise positioning and repeatability than hydraulic cylinders
- Fully predictable J-10 ball nut life expectancy
- Right hand screws standard (left hand screw available)
- Threaded end conditions standard (load pad, clevis, and plain end condition available)
- Protective boots and other options are available
- Custom finishes available
Joyce Bevel Ball Actuators (BB) come in four capacities:
Parts list and exploded view are included in the O&M Manual. Serial numbers are attched to the product housing.
Ball Screw Options |
Encoders
|
Finishes
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Limit Switches
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Lubrication
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Oversized Ball Bearings
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Protective Boots
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Screw Stops
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| Model | Dynamic Capacity | Upright Assembly: Screw-in tension | Upright Assembly: Screw-in compression | Screw Dia./Lead | Bevel Gear Ratio | Pinion Turns for 1" Travel | Pinion Torque (Raising) | Pinion Torque (Holding) | Screw Torque | Actuator Efficiency | Base Weight (Lbs.) | Add for Each Inch of Travel (Lbs.) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BB150 | Please use JAX® V2 software or contact Joyce/Dayton | 15,000 lbs. | 15,000 lbs. | 1.50/.25 | 2.69:1 | 10.77 | .022W* | .018W* | .044W* | 72.2% | 52 | 0.7 |
| BB225 | 30,000 lbs. | 30,000 lbs. | 2.25/.50 | 2.15:1 | 4.31 | .054W* | .044W* | 089W* | 200 | 2.6 | ||
| BB300 | 42,500 lbs. | 70,000 lbs. | 3.75/.66 | 3.52:1 | 5.34 | .044W* | .035W* | .117W* | 360 | 3.2 | ||
| BB400 | 200,000 lbs. | 200,000 lbs. | 4.00/1.00 | 3:1 | 3.00 | .078W* | .063W* | .117W* | 740 | 4.8 | ||
| Inverted Assembly: Screw-in tension | Inverted Assembly: Screw-in compression | |||||||||||
| BB150 | Please use JAX® V2 software or contact Joyce/Dayton | 15,000 lbs. | 15,000 lbs. | 1.50/.25 | 2.69:1 | 10.77 | .022W* | .018W* | .044W* | 72.2% | 52 | 0.7 |
| BB225 | 30,000 lbs. | 30,000 lbs. | 2.25/.50 | 2.15:1 | 4.31 | .054W* | .044W* | 089W* | 200 | 2.6 | ||
| BB300 | 70,000 lbs. | 42,500 lbs. | 3.75/.66 | 3.52:1 | 5.34 | .044W* | .035W* | .117W* | 360 | 3.2 | ||
| BB400 | 200,000 lbs. | 200,000 lbs. | 4.50/1.00 | 3:1 | 3.00 | .078W* | .063W* | .117W* | 740 | 4.8 | ||
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.
