627 ZZ 7x22x7mm Double Shielded Chro...
627ZZ Deep Groove Ball Bearing – Chrome steel construction with double metal shields (ZZ) for effective contamination protection and grease retention. 3.3 kN dynamic load, up to 32,000 RPM. Pre-lubricated and ready to install. Ideal for small electric motors, power tools, skate wheels, RC models, 3D printers, and precision instruments.
Model: 627 ZZ
Inner Diameter (d): 7 mm / 0.2756 in
Outer Diameter (D): 22 mm / 0.8661 in
Width (B): 7 mm / 0.2756 in
Material: Chrome steel
Operating Temperature: -40°C to +120°C
Mass: Approx. 13 g (12.7 – 12.9 g)
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6301-2RS 25mm x 37mm x 12mm Double R...
Bore Diameter (d): 25 mm
Outer Diameter (D): 37 mm
Width (B): 12 mm
Shaft Shoulder Diameter (da min): 28 mm
Housing Shoulder Diameter (Da max): 34 mm
Fillet Radius (ra max): 0.6 mm
Dynamic Load Rating (Cr): 12.0 kN
Static Load Rating (Cor): 6.65 kN
Limiting Speed (Grease Lubricated): 16,000 rpm
Limiting Speed (Oil Lubricated): 20,000 rpm
Weight: Approximately 0.045 kg
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6803 2RS ZZ Thin Section Deep Groove...
Our 6803 bearing is available in open, shielded (ZZ), or sealed (2RS) configurations to match your environmental requirements. The thin-section design provides engineers with greater flexibility in designing compact systems for semiconductor equipment, optical scanners, drone motors, and high-speed automation systems.
Dimensions: Bore: 17 mm, Outer Diameter: 23 mm, Width: 4 mm
Dynamic Load Rating (Cr): 2.8 kN
Static Load Rating (Cor): 1.45 kN
Material:
Rings: Gcr15 Chrome Steel;
Balls: Silicon Nitride (Si3N4);
Cage: Reinforced Nylon 66/Stainless Steel (optional)
Max Operating Speed: Up to 40,000 RPM (grease lubricated)
Weight: Approximately 0.015 kg (30% lighter than all-steel equivalents)
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