Description:Made of solid brass and fitted with graphite, which is self-lubricating and doesn't require oilingWrapped Bushing is self-lubricating. It provides nice frictional property, wear resistance and occasional noiseSolid friction Oilless Bushing can operate throughout a wide temperature range(-40℃+300℃) Suitable for purposes with sliding movementsOilless Sleeve Bearings are most fitted for locations where self-lubricating houses of the material are requiredNote: Spilt Line can't be used for bearing