Ball bearings WIB - Technical information

TECHNICAL INFORMATION Cages The cage is used for positioning and keeping the balls at an equal distance from each other on the circumference of the pitch circle. Different types of cages are proposed in order to offer the best possible solutions to specific customer applications. In principle, cages are either made of brass, steel or synthetic materials. Ball bearings without cages and full complemented bearings can be supplied too. Brass cages (Y) or steel cages (J) are built in two parts and clamped at assembly. For specific applications (vibration) a machined brass cage (M) may be ordered. Synthetic cages are generally reinforced with glass-fibre or carbon fibre. They are then assembled by being pressed into the ball bearing. The cage elasticity allows for certain manipulations, such as the cleaning of the balls or the replacement of a cage. Full complement bearings (V) permit the increase of the maximum admissible load but reduce the maximum speed. The balls are inserted through a recess on the inner and outer ring. The available space does not permit the assembly of any cage type with any shield and seal. The ball bearing tables show on their right side the possible WIB cage-shield/seal combinations. Other combinations are possible, for instance with reduced cage dimensions. Cage types and technical features:
	Cage Type	Mounting Material	Method of Manufacture	Assembly	Other Features
	Y	Brass, 2-parts	Stamping	Clamped	--
	J	Steel, 2-parts	Stamping	Clamped	--
	TNH	Thermoplastic polyamide PA 6.6, 1-piece	Injection	Pressed	Max. temperature 80°C
	T9H	Glass-fibre reinforced (25%) thermoplastic polyamide PA 6.6, 1-piece	Injection	Pressed	Operating temperature 120°C
	TZH	High resilience glass-fibre reinforced (25%) thermoplastic polyamide, 1-piece	Injection	Pressed	High resilience, excellent performance when submitted to vibration and shock loads. Operating temperature 120°C
	TBH	Glass-fabric reinforced phenol resin, 1-piece	Machining	Pressed	High operating temperature, 140°C. Very high speeds
	PEH	Glass-fibre reinforced (20%) PEEK thermoplastic, 1-piece	Injection	Pressed	Very high operating temperature, 250°C
	PCH	Carbon-fibre reinforced (20%) PEEK thermoplastic, 1-piece	Injection	Pressed	Very high operating temperature, 250°C. High rigidity for high speeds
	TSH	Glass-fibre reinforced (15%) thermoplastic polyamide PA 4.6, 1-piece	Injection	Pressed	Standard version for self-aligning ball bearings. High operating temperature, 120°C
	M	Machined brass	Machining	Pressed	For special bearings
	V	Full complement, without cage	--	--	Supports high loads, but with reduced maximum speed.
Cages (Standard Bearings) Improvement of the Surface Characteristics Back to Technical Information Menu