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Single-taper, self-centering design without mounting flange for use in through-bored components. Mounted component moves axially during installation.

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Installation & Removal Instructions
Locking Assembly Series C123 / Metric Locking Assembly Series C123
Locking Assembly
Unit of Measure
1 2 3 4 

Item #

Shaft Size

d

D

L

L1

L2

L3

Mt

Fax

Weight

CAD

C123E-187-S N/A 1 7/8 in N/A 1.875 in N/A 3.150 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 672 ft-lbs N/A 8,601 lbs.F N/A 1.80 lb N/A
C123E-193 N/A 1 15/16 in N/A 1.938 in N/A 3.150 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 1,308 ft-lbs N/A 16,206 lbs.F N/A 1.70 lb N/A
C123E-193-S N/A 1 15/16 in N/A 1.938 in N/A 3.150 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 695 ft-lbs N/A 8,609 lbs.F N/A 1.70 lb N/A
C123E-200 N/A 2 in N/A 2.000 in N/A 3.150 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 1,350 ft-lbs N/A 16,206 lbs.F N/A 1.60 lb N/A
C123E-200-S N/A 2 in N/A 2.000 in N/A 3.150 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 717 ft-lbs N/A 8,604 lbs.F N/A 1.60 lb N/A
C123E-212 N/A 2 1/8 in N/A 2.125 in N/A 3.346 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 1,640 ft-lbs N/A 18,521 lbs.F N/A 1.90 lb N/A
C123E-212-S N/A 2 1/8 in N/A 2.125 in N/A 3.346 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 868 ft-lbs N/A 9,803 lbs.F N/A 1.90 lb N/A
C123E-218 N/A 2 3/16 in N/A 2.188 in N/A 3.346 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 1,688 ft-lbs N/A 18,521 lbs.F N/A 1.80 lb N/A
C123E-218-S N/A 2 3/16 in N/A 2.188 in N/A 3.346 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 894 ft-lbs N/A 9,808 lbs.F N/A 1.80 lb N/A
C123E-225 N/A 2 1/4 in N/A 2.250 in N/A 3.543 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 1,736 ft-lbs N/A 18,521 lbs.F N/A 2.10 lb N/A
C123E-225-S N/A 2 1/4 in N/A 2.250 in N/A 3.543 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 920 ft-lbs N/A 9,813 lbs.F N/A 2.10 lb N/A
C123E-237 N/A 2 3/8 in N/A 2.375 in N/A 3.543 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 1,833 ft-lbs N/A 18,521 lbs.F N/A 1.90 lb N/A
C123E-237-S N/A 2 3/8 in N/A 2.375 in N/A 3.543 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 971 ft-lbs N/A 9,812 lbs.F N/A 1.90 lb N/A
C123E-243 N/A 2 7/16 in N/A 2.438 in N/A 3.740 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 2,116 ft-lbs N/A 20,836 lbs.F N/A 2.20 lb N/A
C123E-243-S N/A 2 7/16 in N/A 2.438 in N/A 3.740 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 1,123 ft-lbs N/A 11,057 lbs.F N/A 2.20 lb N/A
C123E-250 N/A 2 1/2 in N/A 2.500 in N/A 3.740 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 2,170 ft-lbs N/A 20,836 lbs.F N/A 2.20 lb N/A
C123E-250-S N/A 2 1/2 in N/A 2.500 in N/A 3.740 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 1,152 ft-lbs N/A 11,059 lbs.F N/A 2.20 lb N/A
C123E-256 N/A 2 9/16 in N/A 2.563 in N/A 3.740 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 2,225 ft-lbs N/A 20,836 lbs.F N/A 2.10 lb N/A
C123E-256-S N/A 2 9/16 in N/A 2.563 in N/A 3.740 in N/A 0.787 in N/A 1.043 in N/A 1.358 in N/A 1.673 in N/A 1,181 ft-lbs N/A 11,061 lbs.F N/A 2.10 lb N/A
C123E-268 N/A 2 11/16 in N/A 2.688 in N/A 4.331 in N/A 0.945 in N/A 1.201 in N/A 1.594 in N/A 1.988 in N/A 3,405 ft-lbs N/A 30,403 lbs.F N/A 3.80 lb N/A
C123E-268-S N/A 2 11/16 in N/A 2.688 in N/A 4.331 in N/A 0.945 in N/A 1.201 in N/A 1.594 in N/A 1.988 in N/A 1,797 ft-lbs N/A 16,047 lbs.F N/A 3.80 lb N/A
C123E-275 N/A 2 3/4 in N/A 2.750 in N/A 4.331 in N/A 0.945 in N/A 1.201 in N/A 1.594 in N/A 1.988 in N/A 3,484 ft-lbs N/A 30,403 lbs.F N/A 3.70 lb N/A
C123E-275-S N/A 2 3/4 in N/A 2.750 in N/A 4.331 in N/A 0.945 in N/A 1.201 in N/A 1.594 in N/A 1.988 in N/A 1,839 ft-lbs N/A 16,049 lbs.F N/A 3.70 lb N/A
C123E-287 N/A 2 7/8 in N/A 2.875 in N/A 4.528 in N/A 0.945 in N/A 1.201 in N/A 1.594 in N/A 1.988 in N/A 3,642 ft-lbs N/A 30,403 lbs.F N/A 4.00 lb N/A
C123E-287-S N/A 2 7/8 in N/A 2.875 in N/A 4.528 in N/A 0.945 in N/A 1.201 in N/A 1.594 in N/A 1.988 in N/A 1,923 ft-lbs N/A 16,052 lbs.F N/A 4.00 lb N/A
Unit of Measure
1 2 3 4