Specifications
800-TEC-ENGR
www.avg.net
A-10
Position Transducers/Sensors
MOUNTING
Autotech resolvers are designed to operate reliable under
extremely hostile environments, such as: continuous mechani-
cal shock, vibration, extreme temperature and humidity
changes, oil mist, coolant and solvents. Still ordinary precau-
tions to prevent damage to bearings of any rotation device
should be followed to prolong their life.
1. It is recommended that the Autotech encoder mounting
bracket (MMB-EM359-010) be used, wherever possible, for
size 40 resolvers.
The servo-mount resolvers may be mounted either with tra-
ditional servo-clamps or through the four threaded mount-
ing holes on the face of the resolver.
The flange-mount resolvers are mounted using four mount-
ing holes in the square flange.
2. If the resolver is to be axially shaft driven, be sure that the
shafts are aligned. Misaligned shafts can destroy resolver
bearings.
3. If a pulley, coupling or sprocket is mounted to the resolver
shaft, DO NOT hammer or press on the shaft. DO NOT
force fit anything on to or off of the resolver shaft.
4. If the resolver is belt-driven or chain-driven, DO NOT
OVERTIGHTEN the drive belt or chain. Too much side
loading (radial) can destroy the resolver bearings. Side load-
ing is not allowed for E6R and RL101 (size 11) resolvers.
5. To maintain the NEMA 13 rating of the resolver, the fol-
lowing precautions must be taken: a) sealing compound
must be used when fitting the conduit pipe; b) the bearing
seal must be checked once every six months and replaced if
necessary. Lubricating the bearing seal periodically prolongs
its life.
6. Zero Reference: For most resolver types, the approximately
zero reference may be located by aligning the shafts as
shown in the figures below.
CAUTION:
RL101 (size 11) resolvers must be coupled to an external shaft
using a flexible coupling. See “How to Order” page.
Zero Reference-Size 40 resolvers
(SAC-RL100, E8R and SAC-RL210)
Zero Reference-Size 25 resolvers
(E7R)
Servo mount resolvers: Align shaft keyway with the face plate
retaining screw which is in line with a mounting hole.
Flange mount resolver: Align shaft keyway with the face plate
retaining screw that lies midway between two mounting holes.
Size 40 resolvers are at approximately zero when the shaft
key way is aligned with mounting hole and conduit fitting.
Servo Mount Flange Mount