Sealed linear ball bearings
Pre-lubricated sealed linear ball bearings are available in both compact and standard metric versions. All are fitted with integral double-lip seals to retain lubricant and protect against contamination. Seals consist of an inner lip that prevents lubricant from escaping within the bearing and an external lip that wipes the shaft surface as the bearing moves. The linear ball bearings incorporate plastic cages, carrying hardened steel raceway segments and guiding the ball sets. Their recirculating balls reduce friction and provide unlimited stroke to promote optimized performance. Shaft diameters range from 3 to 80 mm, and basic dynamic load ratings range from 60 to 37,500 N, depending on size and type.
SKF Linear Motion & Precision Technologies