3 15/16" mounted Bearing, UCX2063G5, the inner diameter is 3 15/16", this is a popular size that could be used in many applications.

• d = 3 15/16"
• D = 3 15/16"
• B = 4.626"
• C = 1.693"
• Ca = 0.512"
• S = 1.937"
• S1 = 2.689"
• S2 = 0.709"
• Bearing No = UCX2063G5
• Basic Load kN (Cr)= 133
• Basic Load kN (Cor)= 105
• Type: Mounted Bearing
• Bearing Size: 3 15/16" x 3 15/16" x 1.693"/4.626"
• Quantity: One ball bearing