Take the Fanuc Alpha Series Servo Motor, for example. These motors start with A06B at the beginning.
Here’s the model number breakdown:
A06B-01 ♦ ♦ – B ■ ♣ ♣
In the second section, the two positions (♦ ♦) indicate the physical length your motor. For the Fanuc Alpha Series Servo Motor, there are many different servo motor lengths; however, there are nine motor lengths we will focus on, which are listed below.
42: Model α 12/2000
43: Model α 12/3000
46: Model α 22/1500
48: Model α 22/3000
51: Model α 30/1200
52: Model α 30/2000
53: Model α 30/3000
57: Model α 40/2000
58: Model α 40/2000 (with fan)
In the third section, the second position (■) refers to your motors shaft brake options. There are four different brake options for this servo motor model: 0, 1, 5, or 6. The different brake options and meanings are listed below.
0: Straight Shaft (Standard)
1: Straight Shaft with Brake (35 Nm)
5: Taper Shaft
6: Taper Shaft with Brake (35 Nm)
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The last two positions, together, in the third section (♣ ♣) tell your servo motors feedback options. For this servo motor, there are four different feedback options: 75, 77, 84, or 88.
75: With the Pulse Coder α A64
77: With the Pulse Coder α I64
84: With the Serial Pulse Coder α A
88: With the Serial Pulse Coder α A1000
At the end of the model number, you may see a # symbol followed by a number; this addition to the model number tells if the motor is sealed or unsealed and if the motor has a keyway in the shaft or not. If there is not a # symbol followed by a number after the model number, by default, #0000 or #7000 will be attached to the model number. The different options are listed below.
#7000 Unsealed motor without a keyway in the shaft
#0000 Unsealed motor without a keyway in the shaft
#7008 Unsealed Motor with a keyway in the shaft
#0008 Unsealed motor with a keyway in the shaft
#7075 Sealed motor without a keyway in the shaft
#0075 Sealed motor without a keyway in the shaft
#7076 Sealed motor with a keyway in the shaft
#0076 Sealed motor with a keyway in the shaft
So, let’s put what we have learned into practice by looking at the Fanuc Servo Motor A06B-0142-B575.
The servo motor has a physical length of 42, which is model α 12/2000 (42), and it has a taper shaft (5). This model also has a feedback option with the pulse coder α A64 (75).
For more servo motor options, see Repair Zone’s complete inventory Fanuc Servo Motors. If you need help identifying a motor, contact us for assistance at sales@sbsp.net.
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