4x7x2.5 mm ( SMR74-ZZ ) Si3N4 Ceramic Bearings

SKU: 040703001

Premium 4 x 7 x 2.5 Stainless Steel ABEC-7 with Si3N4 Ceramic Balls (Silicon Nitride). 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 application that require fast spinning rate.


Inner Diameter: 4 mm
Outer Diameter: 7 mm
Thickness: 2.5 mm
Also Known As: SMR74-ZZ
ABEC Rating: ABEC-7
Bearing Type: Radial Bearing
Outer Ring, Inner Ring, Cage and Shield: 440C Stainless Steel (Magnetic)
Balls: Si3N4 Ceramic
Closures: Stainless Steel Shields Both Sides


Keywords: 4 x 7 x 2.5 mm, 4mm x 7mm x 2.5mm, 4 mm x 7 mm x 2.5 mm, SMR74-ZZ, SMR74ZZ, SMR74zz

Price: $18.00