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Bevel Ball Actuators BB300 (35 Ton)

BB300 (35 Ton)

Joyce BB300 bevel ball actuators with a 35-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 27.3 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.

3” 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)
Load capacity is dependant on configuration

2D/3D Drawings

Product Media

2D/3D DRAWINGS O & M MANUAL COMMON SYSTEM ARRANGEMENTS PRODUCT INFORMATION ORDERING INFORMATION TRANSLATING KFTN TYPICAL PLAN VIEW COLUMN LOAD CHART LIFE EXPECTANCY CHART

Available Models

BB150 (7.5 TON) BB225 (15 TON) BB300 (35 TON) BB400 (100 TON)

Ductile iron housing
Alloy steel ball screw
Input shaft CDS

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.)
BB300	Please use JAX® V2 software or contact Joyce/Dayton	42,500 lbs.	70,000 lbs.	3.00/.66	3.52:1	5.34	.044W*	.035W*	.117W*	72.2%	360	3.2
		Inverted Assembly: Screw-in tension	Inverted Assembly: Screw-in compression
BB300	Please use JAX® V2 software or contact Joyce/Dayton	70,000 lbs.	42,500 lbs.	3.00/.66	3.52:1	5.34	.044W*	.035W*	.117W*	72.2%	360	3.2

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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