JTC2.5-UR -100-H -II-C-HW
2. Screw Configuration & Mounting Orientation
US: Upright translating screwUK: Upright keyed anti-rotation screwUR: Upright rotating screw
IS: Inverted translating screw IK: Inverted keyed anti-rotation screwIR: Inverted rotating screw
3. Travel Stroke
100, means travel stroke 100mm.
All lifting screw without standard stroke, all made following your
require stroke. Maximum stroke 1200mm.
4. Gear Ratio
H: High gear ratio 1/5, 0.8mm stroke per full turn of input worm
L: Low gear ratio 1/20, 0.2mm stroke per full turn of input worm
5. Lifting Screw Top Ends Types
Standard lifting screw top ends types include top plate, clevis
end, threaded end and plain end. Custom screw end sizes following
your design drawings.
6. Worm Shaft Input Types
A: left side worm shaft input.
B: right side worm shaft input.
C: double worm shaft input.
M1: right side motor flange direct input, left side worm shaft input.
M2: right side motor flange direct input.
M3: left side motor flange direct input, right side worm shaft input.
M4: left side motor flange direct input.
N: No accessory
PP: Protective tube (lifting screw dust-proof and rustproof)
BB: Bellows boots (lifting screw dust-proof and rustproof)
HW: Hand wheel (hand operated)
DC: Digital counter or digital position indicator (installed on worm
shaft, precision display stroke)
EM: Electric motor (motor driven)
SN: Stop nut (installed at the bottom of lifting screw, prevent
lifting screw from being removed from the jack housing)
PB: Pillow block bearing (when long distance between the supports,
pillow block bearing is recommended)
FB: Flange pillow block bearing (when rotating screw jacks with long
stroke or unguided, flange pillow block bearing is recommended)
FC: Flexible coupling (interconnections with drive shafts)
CS: Connecting shaft (for connecting drive shafts like screw jack lift
BG: Miter gearbox (right angle transmit rotary motions, power or
torque in screw jack lift system)
SP: Swivel plate (installed on jack base with swivel pins for pivoting
RE: Rod end (solar tracking systems is required)