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Part Number: 635-2RZ
Bearing Type: Miniature ball bearing with NBR non-contact seals.
Inside Diameter (d) = 5 mm
Outside Diameter (D) = 19 mm
Width (B) = 6 mm
Radius (r₁,r₂min) = 0.3 mm
Deep groove ball bearings are probably the most popular and widely used type if bearing in the world. This 2RS type bearing is manufactured with NBR rubber seals, pre-packed with grease lubricant. The sealed type deep groove ball bearings are generally used in applications where they can be introduced to dust, moisture or dirt such as pallet truck wheels, conveyors and bicycles. Due to the sealing properties, the NBR sealed bearings are a very popular choice for many industries and applications, however, due to the contact between seal and inner ring, starting and running torque values are increased. A 2RZ (non-contact) and 2RSL (low-friction) sealed version is available where starting and running torque is critical. This deep groove ball bearing 635-2RZ SKF has an inside diameter of 5 mm, an outside diameter of 19 mm, and a width of 6 mm.