30x42x7 mm (S6806-2RS) 30x42x7 Si3N4 Si3N4 Ceramic Bearing

SKU: 243042070

This 30 x 42 x 7 mm (S6806-2RS) bearing is a metric deep groove ball bearing. The S6806-2RS inner diameter is 30 mm, the S6806-2RS outer diameter is 42 mm, the S6806-2RS width is 7 mm.

This bearing has rubber seals on both sides to protect the bearing from dust or any possible contamination, which can extend bearing life, and retain the lubricant in the bearing.


The balls are made of Si3N4 Silicon Nitride ceramic.Silicon Nitride (Si3N4) ceramic bearings are 30% lighter than steel and 40% stronger. They have an incredible maximum spin rating of 300,000 rpm under load. These bearings are great for fishing reels and other applications that require fast spinning rate and resistant for rust and corrosion. Librication is generally not required with ceramic bearings.

Specs:

Brand: 30x42x7 Si3N4
Bearing Model: S6806-2RS
Also Known As: 6806-2RS, S6806RS, commonly used for bikes
Inner Diameter (d): 30 mm
Outer Diameter (D): 42 mm
Width (B): 7 mm
Min. Chamfer (r): 0.3 mm
Dynamic Load (Cr): 4.5 kN
Static Load (Cor): 2.9 kN
Speed Limit: 13000 RPM
Speed Limit (Oil): 17000 RPM
Series: 6800
Material: Ceramic balls + Stainless
Closures: Rubber Seal both sides
ABEC Rating: ABEC-3