Linear Unit CTJ 90

The CTJ series includes linear units with a toothed belt drive and two parallel, integrated, zero-backlash rail guides. In the linear units CTJ is used a pre-tensioned steel reinforced AT polyurethane timing toothed belt. In conjunction with a zero-backlash drive pulley high moments with alternating loads with good positioning accuracy, low wear and low noise can be realized.

The in the profile slot driving timing belt, protects all the parts in the profile from dust and other contaminations. Re-lubrication can be done through maintenance holes on the side of the profile.

For CAD-files please contact Rollco.

Dimensions in mm.
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Product Information

Modulus of elasticity: E = 70000 N / mm2
Operating temperature: 0°C ~ +60°C For operating temperature out of the presented range, please contact Rollco.
Duty cycle: 100%
Technical Drawing
Designation Select all Lead Time * Carriage Length Lv Dynamic moments Mx Dynamic moments My Dynamic moments Mz Dynamic Load Capacity C Static Load Capacity C0 Max. permissible loads Forces Fpy Max. permissible loads Forces Fpz Max. permissible loads Moments Mpx Max. permissible loads Moments Mpy Max. permissible loads Moments Mpz Moved mass Max. repeatability Max length Lmax Max. stroke Min. stroke
2 102 125 Nm 17 Nm 34 Nm 4620 N 6930 N 2000 N 4000 N 110 Nm 17 Nm 34 Nm 0,2 kg ± 0,08 6000 5873 25
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2 156 250 Nm 290 Nm 290 Nm 9240 N 13860 N 3990 N 8270 N 200 Nm 290 Nm 125 Nm 0,35 kg ± 0,08 6000 5819 25
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* Green: Stock item, normally immediate shipment. Blue: Contact us for delivery time.

Additional Drawing 1
Designation Select all Carriage version Dyn. Load Capacity C Stat. Load Capacity C0 Dynamic Moment Mx Dynamic Moment My Dynamic Moment Mz Max perm. Loads Forces Fpy Max perm. Loads Moments Mpx Max perm. Loads Moments Mpy Max perm. Loads Moments Mpz
S2 9232 N 13860 N 250 Nm 4,6 * A (mm) Nm 4,6 * A (mm) Nm 4000 220 4,0 * A (mm) 2,0 * A (mm)
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S2 9232 N 13860 N 250 Nm 4,6 * A (mm) Nm 4,6 * A (mm) Nm 4000 220 4,0 * A (mm) 2,0 * A (mm)
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Additional Drawing 2
Designation Select all Max travel speed No load torque Pulley drive ratio Pulley diameter Belt type Belt width Max. force transmitted by belt Specific spring constant Cspec Max. drive torque Min. stroke Planar moment of inertia ly cm⁴ Planar moment of inertia lz cm⁴
5 m/s 0,4 Nm 90 mm/rev 28.65 AT 3 35 520 N 402500 N 7,5 Nm 25 13.40 107
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5 m/s 0,42 Nm 90 mm/rev 28.65 AT 3 35 520 N 402500 N 7,5 Nm 25 13.40 107
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Additional Drawing 2
Designation Select all Carriage Length Lv Mass of linear unit Mass moment of inertia (10⁻⁵ kg * m²) Planar moment of inertia ly cm⁴ Planar moment of inertia lz cm⁴ Moved mass No load torque
102 1, 7 + 0,0048 * Stroke (mm) kg 7 + 0,0031 * Stroke (mm) 13.40 107 0,2 kg 0,4 Nm
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156 2, 1 + 0,0048 * Stroke (mm) kg 11 + 0,0031 * Stroke (mm) 13.40 107 0,35 kg 0,42 Nm
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