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

Item #

d - Shaft Dia.

A - Dimension

P - Dimension

S - Dimension

J - Dimension

K - Dimension

UCFCX 12 60MM N/A 60 mm N/A 7 5/8 in194 mm N/A 6.50 in165 mm N/A 5/8 in16 mm N/A 25/32 in20 mm N/A 9/16 in14 mm
UCFCX 12 38 N/A 2.375 in N/A 7 5/8 in194 mm N/A 6.50 in165 mm N/A 5/8 in16 mm N/A 25/32 in20 mm N/A 9/16 in14 mm
UCFCX 12 39 N/A 2.4375 in N/A 7 5/8 in194 mm N/A 6.50 in165 mm N/A 5/8 in16 mm N/A 25/32 in20 mm N/A 9/16 in14 mm
UCFCX 13 40 N/A 2.5 in N/A 7 5/8 in194 mm N/A 6.50 in165 mm N/A 5/8 in16 mm N/A 25/32 in20 mm N/A 9/16 in14 mm
UCFCX 13 65MM N/A 65 mm N/A 7 5/8 in194 mm N/A 6.50 in165 mm N/A 5/8 in16 mm N/A 25/32 in20 mm N/A 9/16 in14 mm
UCFCX 15 47 N/A 2.9375 in N/A 8 3/4 in222 mm N/A 7 1/2 in190.5 mm N/A 3/4 in19 mm N/A 55/64 in22 mm N/A 5/8 in16 mm
UCFCX 15 75 MM N/A 75 mm N/A 8 3/4 in222 mm N/A 7 1/2 in190.5 mm N/A 3/4 in19 mm N/A 55/64 in22 mm N/A 5/8 in16 mm
UCFCX 15 48 N/A 3 in N/A 8 3/4 in222 mm N/A 7 1/2 in190.5 mm N/A 3/4 in19 mm N/A 55/64 in22 mm N/A 5/8 in16 mm
UCFC X17 N/A 85 mm N/A 10 1/4 in260 mm N/A 8 5/8 in219 mm N/A 29/32 in23 mm N/A 63/64 in25 mm N/A 0.75 in19 mm
UCFCX 17 55 N/A 3.4375 in N/A 10 1/4 in260 mm N/A 8 5/8 in219 mm N/A 29/32 in23 mm N/A 63/64 in25 mm N/A 0.75 in19 mm
UCFCX 17 56 N/A 3.5 in N/A 10 1/4 in260 mm N/A 8 5/8 in219 mm N/A 29/32 in23 mm N/A 63/64 in25 mm N/A 0.75 in19 mm
UCFC X20 N/A 100 mm N/A 10 7/8 in276 mm N/A 9 3/8 in238 mm N/A 29/32 in23 mm N/A 1 7/64 in28 mm N/A 7/8 in22 mm
UCFCX 20 63 N/A 3.9375 in N/A 10 7/8 in276 mm N/A 9 3/8 in238 mm N/A 29/32 in23 mm N/A 1 7/64 in28 mm N/A 7/8 in22 mm
UCFCX 20 64 N/A 4 in N/A 10 7/8 in276 mm N/A 9 3/8 in238 mm N/A 29/32 in23 mm N/A 1 7/64 in28 mm N/A 7/8 in22 mm
Unit of Measure
1 2