A-WK18-AI Woodruff Keys, 3/16 x 1-1/4 model-CR920-CR940 (S STT52B-22KA

STT52B-22KA

outside circumference

Fits Caterpillar Track Dozers: D4D

Replaces Part Numbers: 87516694

Tractor models: 4330

A-WK18-AI Woodruff Keys, 3/16 x 1-1/4 model-CR920-CR940 (S STT52B-22KAOne New Aftermarket Replacement Woodruff Key, 3 16 x 1 1 4 in. (SAE #19 ANSI 610) This half moon shaped Woodruff key locks gears, pulleys, and hubs to rotating shafts by seating in a semi circular keyseat on the shaft while the exposed portion engages a rectangular keyway in the mating component. The 3 16 in. x 1 1 4 in. size (ANSI key number 610 SAE #19) is a widely used standard size found on agricultural equipment, lawn and garden machinery, small