LUBRICATION:
Cam follower and cam yoke roller bearings are packed at the factory
with a petroleum base, lithium grease with extreme pressure and corrosion
resistant additives. This lubricant is suitable for most bearing
applications within a temperature range of 0 degrees Fahrenheit to 250
degrees Fahrenheit. Relubrication in service can be accomplished with any
non-soap base roller bearing grease or oil. A special grease or oil can be
specified for unusual operation conditions at a slight price premium.
Frequency of lubrication will depend upon the speed of bearing
rotation, contaminants present in the application and the type of
lubricant. In continuously rotating applications, constant oil lubrication
or frequent grease relubrications may be necessary. Where speeds are low
or intermittent operation and contamination is not a significant factor,
relubrication frequency may be extended.
The relubrication of cam yoke rollers is accomplished through oil holes
and an oil groove in the bore of the inner race. The mounting pin or shaft
should be axially drilled and a radial hole drilled and matched with the
hole in the race.
Where dimensions allow, cam followers have provisions for relubrication
through either end of the stud or through a cross drilled hole in the
shank. The ends are counter bored to accept drive type lubrication
fittings (not furnished). Precision machined grease plugs are supplied
with each cam follower and should be press fit into unused holes in the
ends of the stud. The cross hole, when not used, is normally blocked when
the cam follower is properly installed in the housing.
For grease relubrication of the cam follower CR and HR series, the
following drive type fittings are suggested:
CR-1/2 to CR-11/16 (Roller end only on these sizes) 1/8" Alemite
#3019.
CR-3/4 to CR-2 3/4 3/16" Alemite #1728-B, #1633, #1645-B, #3005,
#3006, #3009, #3012-B.
CR-3 to CR-4 1/4" Alemite #1743 or #1743-B.
CR-5 to CR-6 Any 1/4" N.P.T. fitting.
SMITH CAM FOLLOWER
APPLICATIONS
IN:
PUMPS
As a moderate speed crank bearing, as a support bearing for
variable volume units.
MATERIALS HANDLING
Lift truck mast bearings, crane guide
bearings.
CONSTRUCTION MACHINERY
Support bearings.
PACKAGING
Various high speed oscillating motions.
INDEXING EQUIPMENT
Precision motion control of high speed, high
shock rate machinery.
AIRCRAFT
For critical control of flaps, thrusters, and hydraulic
units.
PRINTING & COPYING
For feeders, grippers and handling
equipment.
FARM MACHINERY
For implement holding and positioning.
HEAVY DUTY INDUSTRIAL MACHINERY
As table support members on machine
tools. |
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Accurate Bushing Co. Inc. designs and manufactures high-capacity,
anti-friction needle bearing units for a wide variety of applications.
Standard Smith bearings are well suited for most uses; however, standard
bearings will not meet all the requirements of every application.
Modification of a standard bearing, or the use of a completely special
bearing, may be the most practical and economical answer to the particular
demands of your product.
We are equipped to engineer, design and manufacture special bearings to
meet your specific requirements.
PLATED CAM FOLLOWERS
When corrosion resistance is desirable in an application, cam followers
or cam yoke rollers may be obtained in a plated configuration. The outside
diameter and outer race faces will be hard chrome plated and all other
surfaces will be cadmium plated. When plated, the outer race diameter is
.0015" greater than standard size and the stud diameter .0010" larger. The
bearing will be packed with a high/low temperature grease to MIL-G-23827.
When ordering plated cam followers, add the suffix CCP to the standard
designations.
Unless otherwise specified, plating thickness will be in accordance
with standard practice and will be in excess of specified standard
dimensions.
SPECIAL MATERIALS
Technical advances have widened the range of conditions under which
anti-friction devices are required to operate - including extreme
temperature ranges and corrosive atmospheres. This has resulted in
parallel improvements in materials and lubricants used to withstand these
conditions.
Accurate Bushing Co. Inc. manufactures special needle bearings in a
wide variety of stainless steels, tool steels, and exotic alloys. These
are available with a complete variety of petroleum or synthetic base
lubricants.
Consult our engineering department for assistance with your plated or
special material bearing requirements.
AIRCRAFT NEEDLE
BEARINGS
Accurate Bushing Co. Inc. is a major supplier of anti-friction needle
bearings designed to meet the specific needs of the aircraft industry.
These bearings are of non-separable construction and are used in
applications involving high static or oscillating motion loads. They are
manufactured in accordance with "National Aircraft Standards" for the NAS
562 series. They are equivalent to the AFBMA series HRS.
While the primary design concept of the NAS 562 series is for airframe
usage in flap tracks, canopies, landing gear, etc., they are also suitable
for industrial applications because of their high capacity, compact size
and corrosion resistance.
ABC Inc. has also been a leader in the design and manufacture of
specialized bearings for the unique requirements of jet aircraft engines.
We have kept pace with the ever increasing demands for anti-friction units
to operate at higher temperatures, in some cases exceeding 600 degree
Fahrenheit. Thrust reversers, afterburners and divergent nozzles are some
of the areas in which Smith bearings are currently functioning. We take
pride in being able to supply the bearing mount elements for many of these
applications, also.
Contact our Sales or Marketing department for a copy of our Aerospace
brochure and a quote for your requirements. |
