Instruction Manual

8
3-3 BG 450 Bevel Gear Jack Part Numbers
Model Number
BG 450 S BG 450 D
Static Capacity
Upright screw in Compression
218,000 # 218,000#
Static Capacity
Inverted screw in Tension
218,000# 218,000#
Static Capacity
Upright screw in Tension
200,000# 200,000#
Static Capacity
Inverted screw in Compression
200,000# 200,000#
Dynamic Load Capacity
Use JAX*
Software
Use JAX*
Software
Screw Diameter
4 ½” 4 ½”
Pitch/Lead
.5 Pitch
.5 Lead Acme
.5 Pitch
1.0 Lead Acme
Bevel Gear Ratio 3:1 3:1
Pinion turns for
1” of travel
6 3
Pinion Torque (in. #)
.125 W* .154 W*
Screw Torque
.356 W* .438 W*
Jack Efficiency
21.9% 35.5%
Jack Cooling Time (T)
262 minutes 262 minutes
Base Weight (Lbs)
650 650
Add for Each Inch of Travel (Lbs)
5.5 5.5
W*= Load in pounds
Pinion Torque: Torque required to continuously raise a given load.
Screw Torque: Torque required to resist screw rotation in translating jack designs and the torque required to resist rotation of the
traveling nut in Keyed for traveling nut designs.
Lead: The distance a screw advances axially in a single turn
Pitch: the distance from to point on a screw thread to a corresponding point on the next thread, measured axially
* JAX Software: available at www.joycedayton.com/Downloads.