To determine the interchange, select your Sterling model number from the drop down boxes.

Reducer Paint/Material:	--Select-- S - Stainless SS - Stainless Steel
Size:	--Select-- 2133 - 1.33" CD 2154 - 1.54" CD 2175 - 1.75" CD 2206 - 2.06" CD 2238 - 2.38" CD 2262 - 2.62" CD 2325 - 3.25" CD
Input Style:	--Select-- AQ - Quill Input w/Solid Output & Base AR - Solid Input w/Solid Output & Base BQ - Quill Input w/Solid Output BR - Solid Input w/Solid Output HQ - Quill Input w/Hollow Output HR - Solid Input w/Hollow Output FHQ - Quill Input w/Hollow Output & MTG Flange FHR - Solid Input w/Hollow Output & MTG Flange
Ratio:	--Select-- 005 - 5:1 75 - 7.5:1 010 - 10:1 015 - 15:1 020 - 20:1 025 - 25:1 030 - 30:1 040 - 40:1 050 - 50:1 060 - 60:1 070 - 70:1 080 - 80:1 100 - 100:1
Motor Input:	--Select-- 56 - 56C 14 - 143/145TC 18 - 182/184TC 21 - 213/215TC 25 - 254/256TC
Output Bore:	--Select-- Blank - Solid Output shaft 62 - 5/8 68 - 11/16 75 - 3/4 87 - 7/8 10 - 1 11 - 1-1/8 118 - 1-3/16 12 - 1-1/4 14 - 1-7/16 15 - 1-1/2 16 - 1-5/8 68 - 11/16 17 - 1-3/4 18 - 1-7/8 19 - 1-15/16 20 - 2 21 - 2-3/16 22 - 2-1/4 24 - 2-7/16 25 - 2-1/2 2-11/16 21 - 2-15-16 30 - 3 31 - 3-3/16 34 - 3-7/16
Assembly:	--Select-- 1 - Double Output/Hollow Bore 2 - Single Output - Left 3 - Single Output - Right
Input Speed:	--Select-- Reducer Unit Input Speed - 1150 Reducer Unit Input Speed - 1750