Bearing

• Main Author: AUSTIN PAUL R
• Format: Patent
• Language: English
• Published: 17.06.1941
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BEARINGS; BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL PROCESSES OF COMPOUNDING; HEATING; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; WEAPONS; WORKING-UP

547,876. Polyamides ; machine bearings. DU PONT DE NEMOURS & CO., E.I. Jan. 8, 1941, No. 263. Convention date, Jan. 8, 1940. Drawings to Specification. [Class 2 (iii)] The load-bearing element of a machine bearing comprises a high molecular weight polyamide. Specified polyamides are polyhexamethylene adipamide, polyhexamethylene sebacamide, polyhexamethylene terephthalamide, poly - # - aminocaproamide, and polytetramethylene adipamide. Fillers, lubricants and reinforcing and colouring agents may be incorporated with the polyamide, and specified additions are graphite, mica, asbestos, high boiling esters of carboxylic acids, high boiling sulphonamides, phenols, metal powder or wire, fibres, fabrics, threads, pigments and dyes. The bearings should contain at least 10 per. cent. polyamide. Specification 461,236 is referred to. Reference has been directed by the Comptroller to Specification 536,130.