3 1/2" mounted Bearing, UC218-56, the inner diameter is 3 1/2", this is a popular size that could be used in many applications.

• d = 3 1/2"
• D = 3 1/2"
• B = 3.78"
• C = 1.496"
• Ca = 0.433"
• S = 1.563"
• S1 = 2.217"
• S2 = 0.591"
• Bearing No = UC218-56
• Basic Load kN (Cr)= 96.1
• Basic Load kN (Cor)= 71.5
• Type: Mounted Bearing
• Bearing Size: 3 1/2" x 3 1/2" x 1.496"/3.78"
• Quantity: One ball bearing