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Medium duty with set screw lock.
  • Wide inner race bearing with greater load carrying capacity than standard duty
  • Cast iron housing
  • B-type seals
  • L3-type seals available in some sizes
UCFX 4-Bolt Flange Units
Unit of Measure
1 2 

Item #

d - Shaft Dia.

A - Dimension

E - Dimension

I - Dimension

G - Dimension

L - Dimension

UCFX 12 60MM N/A 60 mm N/A 7 3/8 in187 mm N/A 5 7/8 in149 mm N/A 1 3/16 in30 mm N/A 7/8 in22 mm N/A 1 31/32 in50 mm
UCFX 12 38 N/A 2.375 in N/A 7 3/8 in187 mm N/A 5 7/8 in149 mm N/A 1 3/16 in30 mm N/A 7/8 in22 mm N/A 1 31/32 in50 mm
UCFX 12 39 N/A 2.4375 in N/A 7 3/8 in187 mm N/A 5 7/8 in149 mm N/A 1 3/16 in30 mm N/A 7/8 in22 mm N/A 1 31/32 in50 mm
UCFX 13 40 N/A 2.5 in N/A 7 3/8 in187 mm N/A 5 7/8 in149 mm N/A 1 11/32 in34 mm N/A 13/16 in21 mm N/A 2 5/16 in59 mm
UCFX 13 65MM N/A 65 mm N/A 7 3/8 in187 mm N/A 5 7/8 in149 mm N/A 1 11/32 in34 mm N/A 13/16 in21 mm N/A 2 5/16 in59 mm
UCFX 14 43 N/A 2.6875 in N/A 7 3/4 in197 mm N/A 6 in152 mm N/A 1 5/8 in42 mm N/A 7/8 in22 mm N/A 2 27/64 in61 mm
UCF X14 44 N/A 2.75 in N/A 7 3/4 in197 mm N/A 6 in152 mm N/A 1 5/8 in42 mm N/A 7/8 in22 mm N/A 2 27/64 in61 mm
UCFX 14 70MM N/A 70 mm N/A 7 3/4 in197 mm N/A 6 in152 mm N/A 1 5/8 in42 mm N/A 7/8 in22 mm N/A 2 27/64 in61 mm
UCFX 15 75MM N/A 75 mm N/A 7 3/4 in197 mm N/A 6 in152 mm N/A 1 37/64 in40 mm N/A 15/16 in24 mm N/A 2 11/16 in68 mm
UCFX 15 47 N/A 2.9375 in N/A 7 3/4 in197 mm N/A 6 in152 mm N/A 1 37/64 in40 mm N/A 15/16 in24 mm N/A 2 11/16 in68 mm
UCFX 15 48 N/A 3 in N/A 7 3/4 in197 mm N/A 6 in152 mm N/A 1 37/64 in40 mm N/A 15/16 in24 mm N/A 2 11/16 in68 mm
UCF X17 N/A 85 mm N/A 8 7/16 in214 mm N/A 6 3/4 in171 mm N/A 1 37/64 in40 mm N/A 15/16 in24 mm N/A 2 3/4 in70 mm
UCFX 17 55 N/A 3.4375 in N/A 8 7/16 in214 mm N/A 6 3/4 in171 mm N/A 1 37/64 in40 mm N/A 15/16 in24 mm N/A 2 3/4 in70 mm
UCFX 17 56 N/A 3.5 in N/A 8 7/16 in214 mm N/A 6 3/4 in171 mm N/A 1 37/64 in40 mm N/A 15/16 in24 mm N/A 2 3/4 in70 mm
UCF X20 N/A 100 mm N/A 10 9/16 in268 mm N/A 8 5/16 in211 mm N/A 2 21/64 in59 mm N/A 1 3/32 in28 mm N/A 3 13/16 in97 mm
UCFX 20 63 N/A 3.9375 in N/A 10 9/16 in268 mm N/A 8 5/16 in211 mm N/A 2 21/64 in59 mm N/A 1 3/32 in28 mm N/A 3 13/16 in97 mm
UCFX 20 64 N/A 4 in N/A 10 9/16 in268 mm N/A 8 5/16 in211 mm N/A 2 21/64 in59 mm N/A 1 3/32 in28 mm N/A 3 13/16 in97 mm
Unit of Measure
1 2