Siemens SIMOTICS 1FT2104-4AF - Bearing Versions; Shaft Extension

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).