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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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Medium duty with set screw lock.

Available with:
  • Set screw or eccentric locking collars.
  • Available in stainless steel and nickel plated styles.
  • B-type seals or L3 triple lip seals available for extra sealing needs.
  • Wide inner race with greater load carrying capacity than UC insert.
UCX-Inserts
Unit of Measure
1 2 

Item #

(d) Shaft Diameter

(D) Dimension

(Bi) Dimension

(Be) Dimension

(N) Dimension

(M) Dimension

Basic Load Rating

Basic Static Load Rating

UCX14 N/A 0.875 in N/A 2.4409 in N/A 1.5000 in N/A 0.7480 in N/A 0.6260 in N/A 0.8740 in N/A 4.200 lb N/A 2.430 lb
UCX15 N/A 0.9375 in N/A 2.4409 in N/A 1.5000 in N/A 0.7480 in N/A 0.6260 in N/A 0.8740 in N/A 4.200 lb N/A 2.430 lb
UCX25MM N/A N/A 2.4409 in N/A 1.5000 in N/A 0.7480 in N/A 0.6260 in N/A 0.8740 in N/A 4.200 lb N/A 2.430 lb
UCX16 N/A 1 in N/A 2.4409 in N/A 1.5000 in N/A 0.7480 in N/A 0.6260 in N/A 0.8740 in N/A 4.200 lb N/A 2.430 lb
UCX18 N/A 1.125 in N/A 2.8346 in N/A 1.6890 in N/A 0.7874 in N/A 0.6890 in N/A 1 in N/A 5.535 lb N/A 3.340 lb
UCX30MM N/A N/A 2.8346 in N/A 1.6890 in N/A 0.7874 in N/A 0.6890 in N/A 1 in N/A 5.535 lb N/A 3.340 lb
UCX19 N/A 1.1875 in N/A 2.8346 in N/A 1.6890 in N/A 0.7874 in N/A 0.6890 in N/A 1 in N/A 5.535 lb N/A 3.340 lb
UCX20 N/A 1.25 in N/A 2.8346 in N/A 1.6890 in N/A 0.7874 in N/A 0.6890 in N/A 1 in N/A 5.535 lb N/A 3.340 lb
UCX22 N/A 1.375 in N/A 3.1496 in N/A 1.9370 in N/A 0.8268 in N/A 0.7480 in N/A 1.1890 in N/A 6.375 lb N/A 3.960 lb
UCX35MM N/A N/A 3.1496 in N/A 1.9370 in N/A 0.8268 in N/A 0.7480 in N/A 1.1890 in N/A 6.375 lb N/A 3.960 lb
UCX23 N/A 1.4375 in N/A 3.1496 in N/A 1.9370 in N/A 0.8268 in N/A 0.7480 in N/A 1.1890 in N/A 6.375 lb N/A 3.960 lb
UCX24 N/A 1.5 in N/A 3.3465 in N/A 1.9370 in N/A 0.8661 in N/A 0.7480 in N/A 1.1890 in N/A 7.110 lb N/A 4.460 lb
UCX40MM N/A N/A 3.3465 in N/A 1.9370 in N/A 0.8661 in N/A 0.7480 in N/A 1.1890 in N/A 7.110 lb N/A 4.460 lb
UCX26 N/A 1 5/8 in N/A 3.5433 in N/A 2.0315 in N/A 0.9449 in N/A 0.7480 in N/A 1.2835 in N/A 7.400 lb N/A 4.910 lb
UCX27 N/A 1 11/16 in N/A 3.5433 in N/A 2.0315 in N/A 0.9449 in N/A 0.7480 in N/A 1.2835 in N/A 7.400 lb N/A 4.910 lb
UCX28 N/A 1 3/4 in N/A 3.5433 in N/A 2.0315 in N/A 0.9449 in N/A 0.7480 in N/A 1.2835 in N/A 7.400 lb N/A 4.910 lb
UCX45MM N/A N/A 3.5433 in N/A 2.0315 in N/A 0.9449 in N/A 0.7480 in N/A 1.2835 in N/A 7.400 lb N/A 4.910 lb
UCX30 N/A 1 7/8 in N/A 3.937 in N/A 2.1890 in N/A 0.9843 in N/A 0.8740 in N/A 1.3150 in N/A 9.490 lb N/A 6.440 lb
UCX31 N/A 1 15/16 in N/A 3.937 in N/A 2.1890 in N/A 0.9843 in N/A 0.8740 in N/A 1.3150 in N/A 9.490 lb N/A 6.440 lb
UCX50MM N/A N/A 3.937 in N/A 2.1890 in N/A 0.9843 in N/A 0.8740 in N/A 1.3150 in N/A 9.490 lb N/A 6.440 lb
UCX32 N/A 2 in N/A 3.937 in N/A 2.1890 in N/A 0.9843 in N/A 0.8740 in N/A 1.3150 in N/A 9.490 lb N/A 6.440 lb
UCX34 N/A 2 1/8 in N/A 4.3307 in N/A 2.5630 in N/A 1.0630 in N/A 1 in N/A 1.5630 in N/A 11.500 lb N/A 7.940 lb
UCX55MM N/A N/A 4.3307 in N/A 2.5630 in N/A 1.0630 in N/A 1 in N/A 1.5630 in N/A 11.500 lb N/A 7.940 lb
UCX35 N/A 2 3/16 in N/A 4.3307 in N/A 2.5630 in N/A 1.0630 in N/A 1 in N/A 1.5630 in N/A 11.500 lb N/A 7.940 lb
UCX36 N/A 2 1/4 in N/A 4.3307 in N/A 2.5630 in N/A 1.0630 in N/A 1 in N/A 1.5630 in N/A 11.500 lb N/A 7.940 lb
Unit of Measure
1 2