1FT7 servomotors with series SP+ planetary gearbox Siemens

Обзор



SIMOTICS S-1FT7 motor with built-on SP+ planetary gearbox

SIMOTICS S-1FT7 motors can be combined with planetary gearboxes to form compact coaxial drive units. The gearboxes are flanged directly to the drive end of the motors.

When selecting the gearbox, ensure that its maximum permissible input speed is not exceeded by the maximum speed of the motor. In the case of high operating frequencies, allowance must be made for the factor f2 (see Configuration Manual, SIMOTICS S-1FT7 synchronous motors). The frictional losses of the gearbox must always be taken into account.

The gearboxes are only available in non-balanced design.

Интеграция



SIMOTICS S-1FT703 to 1FT710 motors can be supplied ex works (Siemens AG) complete with flange-mounted planetary gearbox.

The gearboxes assigned to the individual motors and gear ratios i available for these motor/gearbox combinations are listed in the subsequent selection table. When making a selection, account must be taken of the maximum permissible input speed of the gearbox (this is the same as the maximum motor speed).

The motor/gearbox combinations listed in the selection tables are mainly intended for cycle operation S3-60 % (ON time ≤ 60 % and ≤ 20 min). Reduced maximum motor speeds and output torques apply for use in S1 continuous duty (ON time > 60 % or > 20 min). The gearbox temperature may not exceed 90 °C (194 °F).

Follow the instructions contained in the Configuration Manual for SIMOTICS S-1FT7 synchronous motors when assigning gearboxes to the motor.

Особенности


  • High efficiency
    Single-stage: > 97 %
    Two-stage: > 94 %
  • Minimum torsional backlash
    Single-stage: ≤ 4 arcmin
    Two-stage: ≤ 6 arcmin
  • Power transmission from the central sun wheel via planet wheels
  • No shaft deflections in the planet wheel set due to symmetrical force distribution
  • Very low moment of inertia and thus short acceleration times of the motors
  • Output shaft bearings dimensioned for high cantilever and axial loads with preloaded tapered-roller bearings
  • The gearboxes are connected to the motor shaft via an integrated clamping hub. A plain motor shaft extension is necessary for this purpose. Shaft and flange accuracy tolerance N in accordance with DIN 42955 and vibration severity grade A in accordance with EN 60034-14 are sufficient. The motor flange is adapted by means of adapter plates.
  • Output shaft of gearbox exactly coaxial with the motor
  • The gearboxes are enclosed (seal between gearbox and motor) and filled with oil at the factory. They are lubricated and sealed for their service life. The gearboxes are suitable for all mounting positions.
  • Degree of protection of gearbox: IP65
  • Small dimensions
  • Low weight

Технические данные



SIMOTICS S-1FT7 motor with SP+ planetary gearbox, single-stage

Gearbox
Type

Gear ratio

Motor speed

Output torque

Moments of inertia of gearbox (referred to the drive)

 

i

Continuous duty S11)

1FT703

1FT704

1FT706

1FT708

1FT710

  

nN1

MN2 (T2N)

J1

J1

J1

J1

J1

  

rpm

Nm
(lbf-ft)

kgcm2 (lbf-in2)

kgcm2 (lbf-in2)

kgcm2 (lbf-in2)

kgcm2 (lbf-in2)

kgcm2 (lbf-in2)

SP 060S‑MF1

4

3300

26 (19.2)

0.22 (0.08)

5

3300

26 (19.2)

0.20 (0.07)

7

4000

26 (19.2)

0.18 (0.06)

SP 075S‑MF1

4

2900

75 (55.3)

0.61 (0.21)

0.78 (0.27)

5

2900

75 (55.3)

0.51 (0.17)

0.68 (0.23)

7

3100

75 (55.3)

0.42 (0.14)

0.59 (0.20)

10

3100

52 (38.4)

0.38 (0.13)

0.54 (0.19)

SP 100S‑MF1

4

2500

180 (133)

3.04 (1.04)

5

2500

175 (129)

2.61 (0.89)

7

2800

170 (125)

2.29 (0.78)

10

2800

120 (88.5)

1.38 (0.47)

2.07 (0.71)

SP 140S‑MF1

4

2100

360 (266)

11.0 (3.76)

5

2100

360 (266)

9.95 (3.40)

7

2600

360 (266)

9.01 (3.08)

10

2600

220 (162)

5.28 (1.80)

8.44 (2.88)

SP 180S‑MF1

4

1500

750 (553)

33.9 (11.6)

5

1500

750 (553)

27.9 (9.53)

7

2300

750 (553)

22.2 (7.59)

10

2300

750 (553)

19.2 (6.56)

19.2 (6.56)

SP 210S‑MF1

10

2000

1000 (738)

53.1 (18.1)



1) The limit values in the table apply for S1 continuous duty (ON time > 60 % or > 20 min) for a maximum gearbox temperature of 90 °C (194 °F).

SIMOTICS S-1FT7 motor with SP+ planetary gearbox, two-stage

Gearbox
Type

Gear ratio

Motor speed

Output torque

Moments of inertia of gearbox (referred to the drive)

 

i

Continuous duty S11)

1FT703

1FT704

1FT706

1FT708

1FT710

  

nN1

MN2 (T2N)

J1

J1

J1

J1

J1

  

rpm

Nm
(lbf-ft)

kgcm2 (lbf-in2)

kgcm2 (lbf-in2)

kgcm2 (lbf-in2)

kgcm2 (lbf-in2)

kgcm2 (lbf-in2)

SP 075S‑MF2

16

3500

75 (55.3)

0.23 (0.08)

0.55 (0.19)

20

3500

75 (55.3)

0.20 (0.07)

28

3500

75 (55.3)

0.18 (0.06)

SP 100S‑MF2

16

3100

180 (133)

0.81 (0.28)

2.18 (0.75)

20

3100

180 (133)

0.54 (0.19)

0.70 (0.24)

2.07 (0.71)

28

3100

180 (133)

0.43 (0.15)

0.60 (0.21)

40

3100

180 (133)

0.38 (0.13)

0.55 (0.19)

50

3500

175 (129)

0.38 (0.13)

0.54 (0.19)

SP 140S‑MF2

16

2900

360 (266)

3.19 (1.09)

10.3 (3.52)

20

2900

360 (266)

2.71 (0.93)

9.77 (3.34)

28

2900

360 (266)

1.65 (0.56)

2.34 (0.80)

40

2900

360 (266)

1.40 (0.48)

2.10 (0.72)

50

3200

360 (266)

1.39 (0.48)

2.08 (0.71)

SP 180S‑MF2

16

2700

750 (553)

12.4 (4.24)

13.5 (4.61)

20

2700

750 (553)

10.9 (3.73)

12.0 (4.10)

28

2700

750 (553)

6.32 (2.16)

9.48 (3.24)

40

2700

750 (553)

5.51 (1.88)

8.67 (2.96)

50

2900

750 (553)

5.45 (1.86)

8.61 (2.94)

SP 210S‑MF2

16

2500

1500 (1106)

34.5 (11.8)

20

2500

1500 (1106)

31.5 (10.8)

28

2500

1500 (1106)

30.0 (10.3)

30.0 (10.3)

40

2500

1500 (1106)

28.5 (9.74)

50

2500

1500 (1106)

28.3 (9.67)

SP 240S‑MF2

20

2500

2500 (1844)

34.6 (11.8)

28

2500

2500 (1844)

30.5 (10.4)

40

2500

2500 (1844)

28.2 (9.64)

50

2500

2500 (1844)

27.9 (9.53)

27.9 (9.53)



1) The limit values in the table apply for S1 continuous duty (ON time > 60 % or > 20 min) for a maximum gearbox temperature of 90 °C (194 °F).