SKF 624-2RS1 Rubber Sealed Single Row Deep Groove Ball Bearing 4x13x5mm

The SKF 624-2RS1 sealed miniature deep groove ball bearing is intended for compact mechanisms built around a 4mm rotating shaft. Its 13mm outside diameter and 5mm width allow designers to support small shafts without adding unnecessary bulk to the surrounding assembly. The single row deep groove raceway arrangement accommodates primarily radial loads and limited axial forces in both directions. SKF's current specifications give a basic dynamic load rating of 0.871kN and a basic static load rating of 0.255kN. These values are essential when assessing the suitability of this miniature bearing for light-duty mechanisms, particularly where small components experience intermittent loading or repeated starts and stops.

The 2RS1 rubber contact seals retain the grease fill and help prevent fine dust and moisture from reaching the balls and raceways. Unlike open miniature bearings, this sealed arrangement reduces the need for routine lubrication but introduces contact friction that must be considered at higher speeds. SKF publishes a limiting speed of 32,000rpm, subject to appropriate operating loads, temperatures and mounting conditions. Importantly, SKF's current product page identifies C3 radial internal clearance for this exact designation, although some distributor information differs. For maintenance work, confirm the required clearance against the application specification and current SKF data. Apply installation forces only to the ring being fitted to avoid damaging the small rolling elements.

Typical Applications:

Miniature electric drive mechanisms

Precision instruments and measurement assemblies

Compact automation and positioning devices

Small guide rollers and rotary linkages

Model engineering and light-duty mechanical equipment