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

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
1FT2☐03
1FT2☐04
1FT2205
1FT2105
1FT2☐06
1FT2☐08
1FT2☐10
The optional shaft extension 11 (k6) mm × 23 mm and 14 (k6) mm × 30 mm can only be supplied
1)
without a keyway and without a shaft sealing ring (IP64).
1FT2 synchronous motors for SINAMICS S120
Configuration Manual, 03/2021, A5E50645584B AA
Shaft dimensions Shaft dimensions with
Diameter × length in
mm
14 (h6) × 30
11 (k6) × 23
1)
19 (k6) × 40
14 (k6) × 30
1)
19 (k6) × 40
24 (k6) × 50
32 (k6) × 58
38 (k6) × 80
IP65/IP67
Width × height ×
Diameter × length in
mm
14 (h6) × 21.5
-
19 (k6) × 32
-
Mechanical properties
3.4 Bearing versions
Feather key Centering
thread
length in mm
5 × 5 × 16 M5
- M4
6 × 6 × 22 M6
- M5
6 × 6 × 32 M6
M8
8 × 7 × 40 M8
10 × 8 × 45 M12
10 × 8 × 70 M12
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