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3.6.2. Permitted inertia moment estimation

3.6.2. Permitted inertia moment estimation

 

Loads must be kept below maximum conditions shown in [Figure 3.11] ~ [Figure 3.13].

 

n  Step 1

Calculate the inertia moment value of the load at each wrist axis center (Ja4, Ja5, Ja6)

Ja4- Inertia moment from R2 axis rotation center

Ja5- Inertia moment from B axis rotation center

Ja6- Inertia moment from R1 axis rotation center

 

n  Step 2

Check if the inertia moment is under the thread according to the permissible inertia moment table.

 

 Allowable Moment of Inertia

 

Table 32 Allowable Moment of Inertia

Maximum Payload

Allowable Moment of Inertia

R2 Axis Rotation

B Axis Rotation

R1 Axis Rotation

200Kg

152 kg·m²(15.5kgf·m·s²)

86 kg·m²(8.8kgf·m·s²)

260Kg

204 kg·m²(20.8kgf·m·s²)

108 kg·m²(11.0kgf·m·s²)

300Kg

248 kg·m²(25.3kgf·m·s²)

134 kg·m²(13.7kgf·m·s²)