Composite sleeve rollers feature a machinable core combined with a wear-resistant outer sleeve in Tungsten Carbide or Ceramic. The core integrates the bearing seats, allowing precise tolerances without machining in the hardened sleeve material. This construction provides high surface durability while maintaining controlled bearing alignment and assembly precision. The roller assembly includes shaft and bearing arrangement for reliable operation in demanding applications. Composite sleeve rollers feature a machinable core combined with a wear-resistant outer sleeve in Tungsten Carbide or Ceramic. The core integrates the bearing seats, allowing precise tolerances without machining in the hardened sleeve material. This construction provides high surface durability while maintaining controlled bearing alignment and assembly precision. The roller assembly includes shaft and bearing arrangement for reliable operation in demanding applications.