AMI Bearings, Inc.
AMI Bearings, Inc.
570 North Wheeling Road
Mount Prospect, IL 60056
Phone: 800.882.8642 or 847.759.0620
Fax: 847.759.0630
Email: amiorders@amibearings.com
Website: www.amibearings.com
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  • Insert
    • Set Screw Locking
    • Heavy Duty
    • Wide Inner Ring
    • AISI 52100 Steel
  • Housing
    • Four-Bolt Flange
    • Cast Iron
Set Screw Locking Four-Bolt Flange Unit, UCF300 Series
Set Screw Locking Four-Bolt Flange Unit, UCF300 Series-2
Unit of Measure
1 2 

Item #

Shaft Diameter

a

e

g

x

s

Z

Bi

UCF305-16 N/A 1 in N/A 4-5/16 in N/A 3-5/32 in N/A 1/2 in N/A 1-5/32 in N/A 5/8 in N/A 1.535 in N/A 1.496 in
UCF306-19 N/A 1-3/16 in N/A 4-15/16 in N/A 3-47/64 in N/A 19/32 in N/A 1-1/4 in N/A 5/8 in N/A 1.732 in N/A 1.693 in
UCF307-20 N/A 1-1/4 in N/A 5-5/16 in N/A 3-15/16 in N/A 5/8 in N/A 1-13/32 in N/A 3/4 in N/A 1.929 in N/A 1.890 in
UCF307-23 N/A 1-7/16 in N/A 5-5/16 in N/A 3-15/16 in N/A 5/8 in N/A 1-13/32 in N/A 3/4 in N/A 1.929 in N/A 1.890 in
UCF308-24 N/A 1-1/2 in N/A 5-7/8 in N/A 4-13/32 in N/A 21/32 in N/A 1-9/16 in N/A 3/4 in N/A 2.205 in N/A 2.047 in
UCF309-27 N/A 1-11/16 in N/A 6-5/16 in N/A 4-59/64 in N/A 23/32 in N/A 1-23/32 in N/A 3/4 in N/A 2.362 in N/A 2.244 in
UCF309-28 N/A 1-3/4 in N/A 6-5/16 in N/A 4-59/64 in N/A 23/32 in N/A 1-23/32 in N/A 3/4 in N/A 2.362 in N/A 2.244 in
UCF310-30 N/A 1-7/8 in N/A 6-7/8 in N/A 5-13/64 in N/A 3/4 in N/A 1-7/8 in N/A 29/32 in N/A 2.638 in N/A 2.402 in
UCF310-31 N/A 1-15/16 in N/A 6-7/8 in N/A 5-13/64 in N/A 3/4 in N/A 1-7/8 in N/A 29/32 in N/A 2.638 in N/A 2.402 in
UCF311-32 N/A 2 in N/A 7-5/16 in N/A 5-33/64 in N/A 25/32 in N/A 2-1/16 in N/A 29/32 in N/A 2.795 in N/A 2.598 in
UCF311-35 N/A 2-3/16 in N/A 7-5/16 in N/A 5-33/64 in N/A 25/32 in N/A 2-1/16 in N/A 29/32 in N/A 2.795 in N/A 2.598 in
UCF312-39 N/A 2-7/16 in N/A 7-11/16 in N/A 5-29/32 in N/A 7/8 in N/A 2-7/32 in N/A 29/32 in N/A 3.071 in N/A 2.795 in
UCF313-40 N/A 2-1/2 in N/A 8-3/16 in N/A 6-17/32 in N/A 7/8 in N/A 2-9/32 in N/A 29/32 in N/A 3.071 in N/A 2.953 in
UCF314-43 N/A 2-11/16 in N/A 8-7/8 in N/A 7-1/64 in N/A 1 in N/A 2-13/32 in N/A 63/64 in N/A 3.189 in N/A 3.071 in
UCF314-44 N/A 2-3/4 in N/A 8-7/8 in N/A 7-1/64 in N/A 1 in N/A 2-13/32 in N/A 63/64 in N/A 3.189 in N/A 3.071 in
UCF315-47 N/A 2-15/16 in N/A 9-5/16 in N/A 7-1/4 in N/A 1 in N/A 2-19/32 in N/A 63/64 in N/A 3.504 in N/A 3.228 in
UCF315-48 N/A 3 in N/A 9-5/16 in N/A 7-1/4 in N/A 1 in N/A 2-19/32 in N/A 63/64 in N/A 3.504 in N/A 3.228 in
UCF316-51 N/A 3-3/16 in N/A 9-13/16 in N/A 7-23/32 in N/A 1-1/16 in N/A 2-11/16 in N/A 1-7/32 in N/A 3.543 in N/A 3.386 in
UCF317-52 N/A 3-1/4 in N/A 10-1/4 in N/A 8-1/32 in N/A 1-1/16 in N/A 2-29/32 in N/A 1-7/32 in N/A 3.937 in N/A 3.780 in
UCF318-55 N/A 3-7/16 in N/A 11 in N/A 8-1/2 in N/A 1-3/16 in N/A 3 in N/A 1-3/8 in N/A 3.937 in N/A 3.780 in
UCF318-56 N/A 3-1/2 in N/A 11 in N/A 8-1/2 in N/A 1-3/16 in N/A 3 in N/A 1-3/8 in N/A 3.937 in N/A 3.780 in
UCF319-60 N/A 3-3/4 in N/A 11-13/32 in N/A 8-31/32 in N/A 1-3/16 in N/A 3-11/16 in N/A 1-3/8 in N/A 4.764 in N/A 4.055 in
UCF320-63 N/A 3-15/16 in N/A 12-3/16 in N/A 9-17/32 in N/A 1-1/4 in N/A 3-11/16 in N/A 1-1/2 in N/A 4.921 in N/A 4.252 in
UCF320-64 N/A 4 in N/A 12-3/16 in N/A 9-17/32 in N/A 1-1/4 in N/A 3-11/16 in N/A 1-1/2 in N/A 4.921 in N/A 4.252 in
UCF322-71 N/A 4-7/16 in N/A 13-3/8 in N/A 10-1/2 in N/A 1-3/8 in N/A 3-25/32 in N/A 1-5/8 in N/A 5.157 in N/A 4.606 in
Unit of Measure
1 2