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
    • Pillow Block
    • Cast Iron
Set Screw Locking Pillow Block Unit, UCPU300 Series
Set Screw Locking Pillow Block Unit, UCPU300 Series-2
Unit of Measure
1 2 

Item #

Shaft Diameter

h

a

b

g

w

Bi

UCPU306-19 N/A 1-3/16 in N/A 2-1/8 in N/A 8-1/4 in N/A 2.250 in N/A 15/16 in N/A 4.250 in N/A 1.693 in
UCPU307-20 N/A 1-1/4 in N/A 2-3/8 in N/A 9-1/4 in N/A 2.362 in N/A 1 in N/A 4.685 in N/A 1.890 in
UCPU307-23 N/A 1-7/16 in N/A 2-3/8 in N/A 9-1/4 in N/A 2.362 in N/A 1 in N/A 4.685 in N/A 1.890 in
UCPU308-24 N/A 1-1/2 in N/A 2-5/8 in N/A 10-1/8 in N/A 2.638 in N/A 1-1/4 in N/A 5.236 in N/A 2.047 in
UCPU309-27 N/A 1-11/16 in N/A 2-7/8 in N/A 10-1/4 in N/A 3.000 in N/A 1-5/16 in N/A 5.625 in N/A 2.244 in
UCPU309-28 N/A 1-3/4 in N/A 2-7/8 in N/A 10-1/4 in N/A 3.000 in N/A 1-5/16 in N/A 5.625 in N/A 2.244 in
UCPU310-30 N/A 1-7/8 in N/A 3-1/8 in N/A 11-9/64 in N/A 3.150 in N/A 1-3/8 in N/A 6.219 in N/A 2.402 in
UCPU310-31 N/A 1-15/16 in N/A 3-1/8 in N/A 11-9/64 in N/A 3.150 in N/A 1-3/8 in N/A 6.219 in N/A 2.402 in
UCPU311-32 N/A 2 in N/A 3-1/2 in N/A 12-41/64 in N/A 3.386 in N/A 1-1/2 in N/A 6.811 in N/A 2.598 in
UCPU311-35 N/A 2-3/16 in N/A 3-1/2 in N/A 12-41/64 in N/A 3.386 in N/A 1-1/2 in N/A 6.811 in N/A 2.598 in
UCPU312-39 N/A 2-7/16 in N/A 3-5/8 in N/A 13-3/4 in N/A 3.500 in N/A 1-5/8 in N/A 7.197 in N/A 2.795 in
UCPU314-43 N/A 2-11/16 in N/A 4 in N/A 14-5/8 in N/A 3.750 in N/A 1-3/4 in N/A 7.938 in N/A 3.071 in
UCPU314-44 N/A 2-3/4 in N/A 4 in N/A 14-5/8 in N/A 3.750 in N/A 1-3/4 in N/A 7.938 in N/A 3.071 in
UCPU315-47 N/A 2-15/16 in N/A 4-1/4 in N/A 15-1/8 in N/A 4.000 in N/A 1-3/4 in N/A 8.295 in N/A 3.228 in
UCPU315-48 N/A 3 in N/A 4-1/4 in N/A 15-1/8 in N/A 4.000 in N/A 1-3/4 in N/A 8.295 in N/A 3.228 in
UCPU316-51 N/A 3-3/16 in N/A 4-9/16 in N/A 15-25/64 in N/A 4.173 in N/A 1-59/64 in N/A 9.016 in N/A 3.386 in
UCPU318-55 N/A 3-7/16 in N/A 5-1/8 in N/A 16-9/64 in N/A 5.000 in N/A 2-1/4 in N/A 10.079 in N/A 3.780 in
UCPU318-56 N/A 3-1/2 in N/A 5-1/8 in N/A 16-9/64 in N/A 5.000 in N/A 2-1/4 in N/A 10.079 in N/A 3.780 in
UCPU320-63 N/A 3-15/16 in N/A 5-11/16 in N/A 17-21/64 in N/A 5.000 in N/A 2-9/16 in N/A 11.063 in N/A 4.252 in
UCPU320-64 N/A 4 in N/A 5-11/16 in N/A 17-21/64 in N/A 5.000 in N/A 2-9/16 in N/A 11.063 in N/A 4.252 in
UCPU306 N/A 30 mm N/A 54 mm N/A 210 mm N/A 57.2 mm N/A 23.8 mm N/A 108 mm N/A 43 mm
UCPU307 N/A 35 mm N/A 60.3 mm N/A 235 mm N/A 60 mm N/A 25.4 mm N/A 119 mm N/A 48 mm
UCPU308 N/A 40 mm N/A 66.7 mm N/A 257 mm N/A 67 mm N/A 32 mm N/A 133 mm N/A 52 mm
UCPU309 N/A 45 mm N/A 73 mm N/A 261 mm N/A 76 mm N/A 33.3 mm N/A 143 mm N/A 57 mm
UCPU310 N/A 50 mm N/A 79.4 mm N/A 283 mm N/A 80 mm N/A 35 mm N/A 158 mm N/A 61 mm
Unit of Measure
1 2