Torlon® 4435 Bearing Grade Polyamide-imide Rod

Torlon® 4435 Bearing Grade Polyamide-imide Rod is engineered for tough, dry-running service where lubrication is unreliable and dimensional control matters. It machines cleanly, holds tight tolerances, and delivers a smooth, durable bearing surface that stays stable next to heat, vibration, and load. Equipment makers use it for bushings, thrust washers, seal rings, sliding vanes, and clutch components that must keep running if a film of oil thins or disappears. The material’s combination of rigidity and toughness helps resist deformation at press fits, maintain round, true bores, and keep running clearances predictable after heat soak. In transportation and industrial machinery, it cuts rattle, wear, and maintenance while supporting compact envelopes that leave little room for metal sleeves. Research and development teams value it for quick, machinable prototypes that translate directly to production stock shapes. By pairing long wear life with consistent handling, Torlon 4435 gives designers a practical, metal-alternative pathway for quiet, efficient mechanisms.