High precision SKF 61903-2RS1 deep groove ball bearing delivers smooth operation, long life, and reliable grease seal for 17 mm bore machinery, handling up to 4.62 kN dynamic load and 14,000 rpm

Sealed 61903-2RS1 Ball Bearing with Dual Seals, Single Unit
✔️ 17 mm bore, 60 mm pack height, 1 1/6 in O.D., CN clearance

SKF 61903-2RS1 is a sealed ball bearing with two contact seals, designed for compact, high-speed rotation in machinery and equipment. It’s a solid choice for small motors, gearboxes, conveyors, and DIY projects where smooth motion and protection from dust and lubricant loss matter.

✅ Basic Dynamic Load Rating: 4.62 kN
✅ Basic Static Load Rating: 2.55 kN
✅ Bore diameter: 17 mm (0.67 in)
✅ O.D.: 1 1/6 in (29.6 mm)
✅ Pack dimensions: 60 mm high x 60 mm long x 9 mm wide (2.36 in x 2.36 in x 0.35 in)
✅ Seals: seal on both sides, contact type
✅ Lubricant: grease
✅ Material: bearing steel
✅ Cage: sheet metal
✅ Number of rows: 1
✅ Radial internal clearance: CN
✅ Tolerance class: Normal

💡 What is a sealed ball bearing and where is it used?

Sealed ball bearings keep lubrication in and contaminants out, handy for a wide range of rotating equipment.

• Handy for motors, gearboxes, conveyors, and compact machines
• Helps extend service life by preserving grease and blocking dirt
• Common in setups where space is tight and quick replacement is needed