Siemens SIMOTICS 1FT2104-4AF, Configuration Manual

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Mechanical properties
3.4 Bearing versions
1FT2 synchronous motors for SINAMICS S120
Configuration Manual, 03/2021, A5E50645584B AA
35
3.4 Bearing versions
The 1FT2 motors have deep-groove ball bearings with life grease lubrication.
3.5 Shaft extension
The motors are supplied with cylindrical shaft extensions. Optionally, a shaft extension with a
keyway and feather key can be supplied.
For the 1FT2
☐ 03 and 1FT2 ☐ 04 with degree of protection IP65 and IP67, the radial shaft seal
ring shortens the useful shaft extension.
Motor Shaft dimensions
Diameter × length in
mm
Shaft dimensions with
IP65/IP67
Diameter × length in
mm
Feather key
Width × height ×
length in mm
Centering
thread
1FT2 ☐ 03 14 (h6) × 30 14 (h6) × 21.5 5 × 5 × 16 M5
11 (k6) × 23
1)
- - M4
1FT2 ☐ 04 19 (k6) × 40 19 (k6) × 32 6 × 6 × 22 M6
14 (k6) × 30
1)
- - M5
1FT2205 19 (k6) × 40 6 × 6 × 32 M6
1FT2105 M8
1FT2 ☐ 06 24 (k6) × 50 8 × 7 × 40 M8
1FT2 ☐ 08 32 (k6) × 58 10 × 8 × 45 M12
1FT2 ☐ 10 38 (k6) × 80 10 × 8 × 70 M12
1)
The optional shaft extension 11 (k6) mm × 23 mm and 14 (k6) mm × 30 mm can only be supplied
without a keyway and without a shaft sealing ring (IP64).