User guide

Series 215 Rotary Actuator Product Manual

Diaphragm Flexure Installation

Installation

Diaphragm Flexure Installation

Depending upon user requirements, the end of the actuator rotor shaft can extend

beyond the flange, be flush with it, or be recessed into the flange adapter to allow

the use of the inside diameter as a pilot diameter.

Diaphragm flexures are used to reduce the potentially damaging effects of large

axial and lateral deflections of the actuator rotor shaft. Perform the necessary

calculations for determining whether or not diaphragm flexures are required by

the specific test system.

Mount the flexure(s) to either the flange adapter or the torque cell.

The following table lists the flexure ratings and mounting bolt torques for the

available flexure diaphragms.

Aligning Force Train Components

After the actuator, reaction bracket, and torque cell have been positioned on the

base plate or T-slot table, they must be aligned. The goal of the alignment process

is to ensure that the actuator and torque cell share the same centerline.

If the test system utilizes a base plate supplied by MTS, the actuator and reaction

bracket will have been pre-aligned at the factory. The combination of an MTS

base plate and reaction bracket enables the operator to easily move the reaction

bracket/torque cell assembly and simplifies the alignment procedure.

If the test system does not utilize an MTS base plate or T-slot table, the torque

cell has been separated from the reaction bracket, or the actuator has been moved,

then the “Component Centerline Alignment Procedure” must be performed in

order to ensure proper alignment of the components of the test system. If the

reaction bracket, torque cell, and actuator have not been moved and were

properly aligned when installed, then it is not necessary to perform the alignment

procedures.

The diaphragm flexure assemblies are self-centering.

Flange Adapter and Diaphragm Flexure Rating

ODEL

FLANGE AND DIAPHRAGM FLEXURE RATING MOUNTING BOLT TORQUE

LBF

·N.N·MLBF·IN.N·M

215.32 2000 226 18 24

215.35 5000 565 35 47

215.41 10,000 1130 35 47

215.42 20,000 2260 170 230

215.45 50,000 5650 170 230

215.51 100,000 11,300 280 380