Inovance SV670N Series - Parts Replacement; Replacing the Motor Flat Key

Parts Replacement
‑7‑
2 Parts Replacement
2.1 Replacing the Motor Flat Key
● Observe all the requirements presented in this chapter. Failure to comply may
result in equipment fault or damage.
● Violent disassembly is not allowed. Take enough care during disassembly to
prevent personal injury.
Standard MS1 series motors in flange sizes 60, 80, and 130 adopt C‑type flat key that
carries the disassembly hole. To disassemble the flat key, select a proper disassembly
bolt (inner hexagon bolt recommended) based on the following table.
Specifications
Motor
Dimensions of the Flat
Key
Specifications of the Disassembly
Bolt (Inner Hexagon Bolt)
Size 40
Type‑A flat
key—A3×3×14
No disassembly hole
Size 60
Type‑C flat
key—C5×5×16.5
M3 x 10 and above
Size 80
Type‑C flat
key—C6×6×25
M3 x 15 and above
Size 100
Type‑C flat
key—C8×7×35
M3 x 20 and above
Size 130
Type‑C flat
key—C8×7×35
M3 x 20 and above
Size 180
Type‑C flat
key—C10×8×64
M3 x 20 and above
● Tool needed: an Allen wrench
● Disassembly procedure:
1. Select a proper disassembly bolt (inner hexagon bolt recommended) based on
the motor model.
2. Use an Allen wrench to screw down the screw until the A‑A end of the flat key is
detached from the keyway, as shown below. See the following figure.