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Emerson Bearing Company
201 Brighton Avenue
Boston, MA 02134
Phone: (800) 225-4587 • Fax: (800) 252-1996
Email: info@emersonbearing.com
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Standard duty with set screw lock.

Available with:
  • Set screw or eccentric locking collar.
  • Corrosion resistant housing and bearing options include Cast iron, Stainless Steel, Thermoplastic, and Nickel plating.
  • B-type seals or L3 triple lip seals available for extra sealing needs.
  • Wide inner race bearing
  • Available with high temperature bearings.
UCF-4-Bolt-Flange-Units
Unit of Measure
1 2 

Item #

Alternative P/N

(d) Shaft Diameter

(A) Dimension

(E) Dimension

(G) Dimension

(L) Dimension

(S) Dimension

Bolt Used

SF12MM N/A UCF 201 N/A N/A 3 in N/A 2-1/8 in N/A 3/8 in N/A 1-3/32 in N/A 7/16 in N/A 3/8 in
SF8 N/A UCF 201-8 N/A 0.5 in N/A 3 in N/A 2-1/8 in N/A 3/8 in N/A 1-3/32 in N/A 7/16 in N/A 3/8 in
SF15MM N/A UCF 202 N/A N/A 3 in N/A 2-1/8 in N/A 3/8 in N/A 1-3/32 in N/A 7/16 in N/A 3/8 in
SF10 N/A UCF 202-10 N/A 0.625 in N/A 3 in N/A 2-1/8 in N/A 3/8 in N/A 1-3/32 in N/A 7/16 in N/A 3/8 in
SF17MM N/A UCF 203 N/A N/A 3 in N/A 2-1/8 in N/A 3/8 in N/A 1-3/32 in N/A 7/16 in N/A 3/8 in
SF12 N/A UCF 204-12 N/A 0.75 in N/A 3-3/8 in N/A 2-1/2 in N/A 0.4375 in N/A 1 in N/A 7/16 in N/A 3/8 in
SF20MM N/A UCF 204 N/A N/A 3-3/8 in N/A 2-1/2 in N/A 0.4375 in N/A 1 in N/A 7/16 in N/A 3/8 in
SF14 N/A UCF 205-14 N/A 0.875 in N/A 3-3/4 in N/A 2-3/4 in N/A 1/2 in N/A 1-1/16 in N/A 29/64 in N/A 3/8 in
SF15 N/A UCF 205-15 N/A 0.9375 in N/A 3-3/4 in N/A 2-3/4 in N/A 1/2 in N/A 1-1/16 in N/A 29/64 in N/A 3/8 in
SF25MM N/A UCF 205 N/A N/A 3-3/4 in N/A 2-3/4 in N/A 1/2 in N/A 1-1/16 in N/A 29/64 in N/A 3/8 in
SF16 N/A UCF 205-16 N/A 1 in N/A 3-3/4 in N/A 2-3/4 in N/A 1/2 in N/A 1-1/16 in N/A 29/64 in N/A 3/8 in
SF17 N/A UCF 206-17 N/A 1.0625 in N/A 4-1/4 in N/A 3-1/4 in N/A 1/2 in N/A 1-7/32 in N/A 33/64 in N/A 7/16 in
SF18 N/A UCF 206-18 N/A 1.125 in N/A 4-1/4 in N/A 3-1/4 in N/A 1/2 in N/A 1-7/32 in N/A 33/64 in N/A 7/16 in
SF30MM N/A UCF 206 N/A N/A 4-1/4 in N/A 3-1/4 in N/A 1/2 in N/A 1-7/32 in N/A 33/64 in N/A 7/16 in
SF19 N/A UCF 206-19 N/A 1.1875 in N/A 4-1/4 in N/A 3-1/4 in N/A 1/2 in N/A 1-7/32 in N/A 33/64 in N/A 7/16 in
SF20S N/A UCF 206-20 N/A 1.25 in N/A 4-1/4 in N/A 3-1/4 in N/A 1/2 in N/A 1-7/32 in N/A 33/64 in N/A 7/16 in
SF20 N/A UCF 207-20 N/A 1.25 in N/A 4-19/32 in N/A 3-5/8 in N/A 19/32 in N/A 1-11/32 in N/A 33/64 in N/A 7/16 in
SF21 N/A UCF 207-21 N/A 1.3125 in N/A 4-19/32 in N/A 3-5/8 in N/A 19/32 in N/A 1-11/32 in N/A 33/64 in N/A 7/16 in
SF22 N/A UCF 207-22 N/A 1.375 in N/A 4-19/32 in N/A 3-5/8 in N/A 19/32 in N/A 1-11/32 in N/A 33/64 in N/A 7/16 in
SF35MM N/A UCF 207 N/A N/A 4-19/32 in N/A 3-5/8 in N/A 19/32 in N/A 1-11/32 in N/A 33/64 in N/A 7/16 in
SF23 N/A UCF 207-23 N/A 1.4375 in N/A 4-19/32 in N/A 3-5/8 in N/A 19/32 in N/A 1-11/32 in N/A 33/64 in N/A 7/16 in
SF24 N/A UCF 208-24 N/A 1.5 in N/A 5-1/8 in N/A 4 in N/A 19/32 in N/A 1-13/32 in N/A 35/64 in N/A 1/2 in
SF25 N/A UCF 208-25 N/A 1.5625 in N/A 5-1/8 in N/A 4 in N/A 19/32 in N/A 1-13/32 in N/A 35/64 in N/A 1/2 in
SF40MM N/A UCF 208 N/A N/A 5-1/8 in N/A 4 in N/A 19/32 in N/A 1-13/32 in N/A 35/64 in N/A 1/2 in
SF26 N/A UCF 209-26 N/A 1 5/8 in N/A 5-13/32 in N/A 4-1/8 in N/A 5/8 in N/A 1.5 in N/A 5/8 in N/A 9/16 in
Unit of Measure
1 2