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Can Users Machine PolyLube Guide Rod Bushings to Tighter Tolerances? If Yes, How?

From Polygon Company
 

 
Q: "Can Users Machine PolyLube Guide Rod Bushings to Tighter Tolerances? If Yes, How?" A: First, Polygon recommends that secondary ID or OD fabrication by the user group community only be performed on the PolyLube Glass and Bronze filled liners. Trying to machine the Fiber or MRP liner causes the tool to pull the fibers up leaving a fuzzy mess. When turning the O.D. of a bearing we recommend placing the part on an expandable mandrel or a snug fitting arbor in a manual or CNC lathe. Depending on the wall thickness of the bearing, it is important to regulate the clamping pressure to a point where the part will be held while machining, yet not excessive to a point where the pressure distorts its natural shape. We recommend using a diamond tipped cutting insert with the part turned at 2000-3000 RPM with a .003" per revolution feed rate. It is important to flood the insert with coolant to dissipate heat generated from the abrasiveness of fiberglass while cutting. The depth of cut is dependant on the length of the diamond tip on the cutting insert. Typical range is from .060 - .100".
Products & Services
Plain bearings and sleeve bearings (also referred to as bushings or journal bearings) are used to constrain, guide or reduce friction in rotary or linear applications. They function via a sliding action. Search by Specification | Learn more about Plain Bearings and Sleeve Bearings
Product Announcements
Polygon Company - POLYLUBE® Guide Rod Bushings
POLYLUBE® Composite Guide Rod Bushings are designed as straight-forward replacements for traditional metallic guide rod bushing materials. (read more)
Polygon Company - POLYLUBE® Glass Tape Bushing
Best for applications where corrosion, high misalignment or edge loading, low friction and excellent wear characteristics are desired. Great for use as guide rod bearings, with linear motion... (read more)
Polygon Company - Custom bushings and bearings
Polygon Company is a vertically integrated self-lubricated bearing company. We design and produce our own proprietary liners, as well as resin formulations. We can also engineer special fiber... (read more)
Polygon Company - MRP and MRP-SL Bushings
A robust bushing for agricultural and construction equipment, material handling, or other applications that require high load capacity, low frictional values, along with minimal wear characteristics. (read more)
Polygon Company - POLYLUBE® IFR Bushings
A bearing with optimized structure for improved resistance in applications with repeated impact fatigue or stress / strain conditions. The IFR bushing (Improved Fatigue Resistance) offers a... (read more)
Polygon Company - POLYLUBE® High Temperature Bushings
A bushing designed for environments over 450°F or where thermal expansion stability is critical. POLYLUBE® HT bushing is a high load, low RPM bushing designed for applications where self-lubrication... (read more)
Mercer Gasket & Shim - Knife Cutting Services
Mercer Gasket & Shim can cut any possible part to meet your specifications on any timeframe you require. Custom parts are first drawn in our Drafting Dept to ensure the parts meet your... (read more)
Daemar Inc. - DMR™ Fiber-Lube™
A Series of composite bushings that allow true self lubrication. Ideal for long-term highly loaded applications. Additional benefits include: low friction values and resistance to corrosion. The... (read more)
Insaco, Inc. - Micro Machining of ultra hard materials
The nature of diamond grinding on ultra hard materials translates into tight tolerances being routinely achieved. Insaco is typically capable of generating tightly toleranced features to .001", or... (read more)
Jason Finishing Group-Osborn/JacksonLea - Diamond Superabrasive Brushes
Osborn ATB Diamond Superabrasive brushes are engineered for today's superhard materials such as CBN, PCD and ceramics. ATB Superabrasives are made with polycrystalline diamond (PCD) impregnated... (read more)
Topics of Interest
Q: "How Do PolyLube™ Bearings Compare To Spring Style Steel Bushings?" A: When comparing PolyLube Fiber & MRP bearings to hardened spring bushings, four primary design improvements for the... (Read More)
Q: "How Do Self-Lubricating Composite Bearings Compare To Other Bearing Materials?" A: The Polygon PolyLube™ bearing can be used as a replacement for traditional powdered metal bearings where... (Read More)
Q: "Is Moisture Absorption A Problem With Composite Bearings?" A: A common misconception with composite bearings is that they are prone to moisture absorption. This can be of special concern for... (Read More)
The PolyLube IFR bearing offers the same inherent anti-friction components that allow it to achieve the low wear characteristics of the Fiber and MRP series bearings. However, in comparison to these... (Read More)
Contamination is one of the most common causes for the failure of journal bearings. Metal bearings combat this problem with the use of grease zirks and maintenance schedules that are imposed on the... (Read More)
See more product announcements for Plain Bearings and Sleeve Bearings
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