SKF 6303-2RSH Rubber Sealed Single Row Deep Groove Ball Bearing 17x47x14mm

The SKF 6303-2RSH sealed deep groove ball bearing provides a durable solution for rotating shafts where compact equipment must withstand meaningful radial loads. Its 17mm bore, 47mm outside diameter and 14mm width place it in the heavier 63 series, giving it a larger cross-section than the 6203 bearing. The single row deep groove raceways accommodate predominantly radial loads together with axial forces in either direction, within the bearing's rated capacity. SKF specifies a basic dynamic load rating of 14.3kN and a basic static load rating of 6.55kN. These ratings help engineers assess fatigue life and operating loads when selecting bearings for pumps, motor shafts and power transmission equipment.

The 2RSH sealing arrangement uses rubber contact seals on both sides, retaining factory-applied grease while helping restrict the entry of dust, dirt and moisture. This makes the bearing useful in enclosed drive systems where frequent relubrication is inconvenient. SKF lists a limiting speed of 11,000rpm for this configuration, although continuous operating suitability depends on load, temperature, lubrication and friction generated by the contacting seals. The bearing has normal (CN) radial internal clearance and a sheet metal cage, with an approximate mass of 0.12kg. When replacing an existing bearing, verify the full 6303-2RSH designation, particularly the seal type and any clearance suffix. Correct shaft and housing fits are essential to maintaining suitable running clearance after installation.

Typical Applications:

Small industrial electric motors and drive units

Centrifugal pumps and fluid circulation equipment

Agricultural machinery and implement drives

Compact conveyor and pulley assemblies

Industrial gearboxes and mechanical transmission systems