30x40x7 mm (MR3040H7-2RS) Si3N4 Ceramic Bearing

NZ $25.00 +GST each

In Stock Now

SKU: 24102608050

This 30 x 40 x 7 mm (MR3040H7-2RS) bearing is a metric deep groove ball bearing. The MR3040H7-2RS inner diameter is 30 mm, the MR3040H7-2RS outer diameter is 40 mm, the MR3040H7-2RS 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 cage of this bearing is bearing steel, and the balls are made of Si3N4 Silicon Nitride ceramic. Tolerance of this bearing is rated at ABEC - 7. 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.


Bearing Model: MR3040H7-2RS
Also Known As: MR3040H7-2RS-CB, SRAM DUB bearing
Inner Diameter (d): 30 mm
Outer Diameter (D): 40 mm
Width (B): 7 mm
Series: SRAM DUB bearing
Material: Ceramic balls + Bearing Steel
Closures: Rubber Seal both sides