Product Description

Okuma is a factory automation expert based in Japan. Its product catalog contains drive and motion control units that can be used for different kinds of industrial applications. With over a decade’s experience in manufacturing such products, the company is one globally reliable brand. Some of its products include servo motors, grinders, lathes, CNC controls, and machine tools. The VAC series consists of AC spindle servo motors created by Okuma.

The VAC-YMF22-18.5R-153KR6 is a 3-phase AC spindle motor in the VAC series designed and manufactured by Okuma. It has 4 poles and a nominal speed of 1,500 revolutions per minute. Its maximum speed is 6,000 revolutions per minute, and it has a continuous power rating of 18.5 kW. Its peak power rating is 22 kW, and this is for 30 minutes. The bearing code on its drive end is indicated as 6311M2ZZ, and on the other end, it is 6210MZZ. For its operation, a connecting voltage of 170 V is required. The spindle motor’s peak current and continuous current values are 112 A and 99 A, respectively.

As a product of insulation class F according to the specifications provided by NEMA, the maximum permissible temperature of the winding insulation of the VAC-YMF22-18.5R-153KR6 is 155^oC. The motor also requires an ambient temperature between 0^o C to 40^o C for it to be operated optimally long-term. Its drive unit is the DD2A/1104, and it is equipped with LEDs that provide relevant information about the motor’s operation. The LEDs also play a vital role in running diagnostics and fault correction. Harmful chips, water, and oil should not penetrate the motor as they tend to cause damage.