GE DS200DCFBG2BNC Logic control card

The degree of protection on the flange side of motors with shaft sealing ring is IP 65. Hence, tightness is ensured only in case of splashing fluids. Fluid levels present on side A require a higher degree of protection. If the motor is installed in vertical position (shaft pointing up), the instructions in the section “Design and Installation Positions” in this chapter must, in addition, be observed.Rexroth recommend that any direct contact of the output shaft and the radial shaft sealing ring with the processing medium (coolant, material corrosion), caused by the type of machine or system construction, should be avoided.

Bearings and Shaft Load

 During operation, both radial and axial forces act upon the motor shaft and the motor bearings. The construction of the machine and the attachment of driving elements on the shaft side must be adjusted to one another to ensure that the load limits specified are not exceeded.

The maximum permissible radial force Fradial_max depends on the following factors: • Shaft break load • Point of force application x (see Fig. 13-18) • Shaft design (plain; with keyway) The permissible radial force Fradial depends on the following factors: • Arithmetic mean speed (nmean) • Point of force application x (see Fig. 13-18) • Bearing service life

Permissible axial force Faxial

The maximum permissible axial force Faxial is proportional to the radial force. Please refer to the section entitled “Shaft load” in the technical data for the proportionality factor

Owing to thermal effects, the flange-sided end of the output shaft may shift by 0.6 mm in relation to the motor housing. If skew bevel driving pinions or bevel gear pinions directly attached to the output shaft are used, this change in position will lead to • a shift in the position of the axis, if the driving pinions are not defined axially on the machine side,

Common problem

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