MTS Series 249 Swivels - Manual (Page 14)

Series 249 Rod Swivel Product Manual 14
Series 249 Rod Swivel Component Identification
Introduction
Series 249 Rod Swivel Component Identification
Series 249 Swivel Components
C OMPONENT D ESCRIPTION
Swivel eye Contains the spherical bearings. There are two mounting styles:
• The base type has a bolt pattern on the top that is suitable for mounting the
base of an actuator to it.
• The rod end type is designed for mounting to a load cell or the piston rod
of an actuator. The Models 249.12/.20/.23, and .32 rod end types are
internally tapped to accept a threaded stud. The larger Model 249.41,
249.42, and .51 rod end types are mounted with an adapter plate.
Pin Secures the spherical bearing to the swivel jaw.
Swivel jaw Secures the swivel to the reaction mass. It is comprised of two sides joined by a
pin passing through the spherical bearing.
Spherical bearing Allows the swivel eye to tilt and rotate through a wide range of motion.
Clamping bolt Depending on the size of the swivel, a single bolt or a Superbolt Torquenut
clamps the swivel eye.
Eye insert Provides a hardened surface to tighten against, and prevents deformation of the
swivel eye.
Backlash adjuster A threaded sleeve that screws into and out of the swivel eye to act as a variable
shim when adjusting the swivel backlash.
Spherical washers Compensate for non-parallel surfaces within the load path of the swivel eye.
Different backlash adjustment settings can cause the surfaces of the split in the
swivel eye to no longer be parallel. The spherical washers ensure that this does
not adversely effect the backlash adjustment or damage the clamping bolt.
Clamping
Bolt
Eye
Insert
Spherical
Washers
Spherical
Bearing
Backlash
Adjuster
Swivel Eye
Retaining Ring
Pin
Swivel Jaw