Equipment / Software / Literature

Feb. 11, 2008

Custom shaft collars for oil field applications

These custom shaft collars can be engineered with specific aesthetic and functional design properties to match a range of oil field uses.

Collars are custom engineered to match specific requirements with regard to configuration and materials of construction. Featuring tolerances to 0.0005 in. if required, they can be machined from aluminum, steel, stainless steels, monel, inconel, Hastelloy, titanium, bronze, brass, Teflon, and other plastics.

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Manufactured in prototype to production volumes, collars are available in 1⁄8 in. to 16 in. ID sizes with hex, square, metric, radiused, keyed, and threaded bores. They can include one or two-piece clamp types and set screws and incorporate snap and O-ring grooves, magnetic inserts, and hinges, drilled and tapped face holes, and milled ODs.

Source: Stafford Mfg. Corp., Box 277, North Reading, MA 01864-0277.

New rotary seal helps avoid oil field downtime

The new Rotaflon rotary seal helps reduce or eliminate shaft damage and reduce power consumption in oil field operations.

Its design accommodates changing operating conditions, lower breakout force, and provides excellent chemical resistance, the company says.

The seal accommodates surface speeds as high as 5,900 fpm and temperatures of –58° to +500° F. and is suited for poorly lubricated conditions. It can be used in gearboxes, compressors, alternators, mixers and dryers, vacuum pumps, crank shafts, heavy duty machines, spindles, and hydraulic and electromotors.

The Rotaflon comes in two series. The RB-Series incorporates a bonded, low friction surface on the elastomeric seal lip. The MC-Series incorporates a high-performance polymer sealing lip available with a single lip, double lip, and spring energizer. The result with either lip is the same: less wear and tear on the shaft leading to a longer lasting seal, the firm points out.

Source: American High Performance Seals Inc., 408 High Tech Drive, Imperial Business Park, Oakdale, PA 15071.