Typical Model Numbers for:
FALK Y UNIT GEAR SPEED REDUCERS
Reductions
Speed Reducer SizesTypes
50 60 70 80 90 100 110 120 130 135 140
SINGLE

50Y1A
50Y1S
50YT1A
50YT1S
 

60Y1A
60Y1S
60YT1A
60YT1S
 

70Y1A
70Y1S
70YT1A
70YT1S
 

80Y1A
80Y1S
80YT1A
80YT1S
 

90Y1A
90Y1S
90YT1A
90YT1S
 

100Y1A
100Y1S
100YT1A
100YT1S
 

110Y1A
110Y1S
110YT1A
110YT1S
 

120Y1A
120Y1S
120YT1A
120YT1S
 

130Y1A
130Y1S
130YT1A
130YT1S
 

135Y1A
135Y1S
135YT1A
135YT1S
 

140Y1A
140Y1S
140YT1A
140YT1S
 
DOUBLE

50Y2A
50Y2S
50YT2A
50YT2S
 

60Y2A
60Y2S
60YT2A
60YT2S
 

70Y2A
70Y2S
70YT2A
70YT2S
 

80Y2A
80Y2S
80YT2A
80YT2S
 

90Y2A
90Y2S
90YT2A
90YT2S
 

100Y2A
100Y2S
100YT2A
100YT2S
 

110Y2A
110Y2S
110YT2A
110YT2S
 

120Y2A
120Y2S
120YT2A
120YT2S
 

130Y2A
130Y2S
130YT2A
130YT2S
 

135Y2A
135Y2S
135YT2A
135YT2S
 

140Y2A
140Y2S
140YT2A
140YT2S
 
TRIPLE

50Y3A
50Y3S
50YT3A
50YT3S
 

60Y3A
60Y3S
60YT3A
60YT3S
 

70Y3A
70Y3S
70YT3A
70YT3S
 

80Y3A
80Y3S
80YT3A
80YT3S
 

90Y3A
90Y3S
90YT3A
90YT3S
 

100Y3A
100Y3S
100YT3A
100YT3S
 

110Y3A
110Y3S
110YT3A
110YT3S
 

120Y3A
120Y3S
120YT3A
120YT3S
 

130Y3A
130Y3S
130YT3A
130YT3S
 

135Y3A
135Y3S
135YT3A
135YT3S
 

140Y3A
140Y3S
140YT3A
140YT3S
 
QUADRUPLE

50Y4A
50Y4S
50YT4A
50YT4S
 

60Y4A
60Y4S
60YT4A
60YT4S
 

70Y4A
70Y4S
70YT4A
70YT4S
 

80Y4A
80Y4S
80YT4A
80YT4S
 

90Y4A
90Y4S
90YT4A
90YT4S
 

100Y4A
100Y4S
100YT4A
100YT4S
 

110Y4A
110Y4S
110YT4A
110YT4S
 

120Y4A
120Y4S
120YT4A
120YT4S
 

130Y4A
130Y4S
130YT4A
130YT4S
 

135Y4A
135Y4S
135YT4A
135YT4S
 

140Y4A
140Y4S
140YT4A
140YT4S
 
Reductions
Speed Reducer SizesTypes
145 150 155 160 165 170 175 180 185 190 195
SINGLE

145Y1A
145Y1S
145YT1A
145YT1S
 

150Y1A
150Y1S
150YT1A
150YT1S
 

155Y1A
155Y1S
155YT1A
155YT1S
 

160Y1A
160Y1S
160YT1A
160YT1S
 

165Y1A
165Y1S
165YT1A
165YT1S
 

170Y1A
170Y1S
170YT1A
170YT1S
 

175Y1A
175Y1S
175YT1A
175YT1S
 

180Y1A
180Y1S
180YT1A
180YT1S
 

185Y1A
185Y1S
185YT1A
185YT1S
 

190Y1A
190Y1S
190YT1A
190YT1S
 

195Y1A
195Y1S
195YT1A
195YT1S
 
DOUBLE

145Y2A
145Y2S
145YT2A
145YT2S
 

150Y2A
150Y2S
150YT2A
150YT2S
 

155Y2A
155Y2S
155YT2A
155YT2S
 

160Y2A
160Y2S
160YT2A
160YT2S
 

165Y2A
165Y2S
165YT2A
165YT2S
 

170Y2A
170Y2S
170YT2A
170YT2S
 

175Y2A
175Y2S
175YT2A
175YT2S
 

180Y2A
180Y2S
180YT2A
180YT2S
 

185Y2A
185Y2S
185YT2A
185YT2S
 

190Y2A
190Y2S
190YT2A
190YT2S
 

195Y2A
195Y2S
195YT2A
195YT2S
 
TRIPLE


145Y3A
145Y3S
145YT3A
145YT3S
 

150Y3A
150Y3S
150YT3A
150YT3S
 

155Y3A
155Y3S
155YT3A
155YT3S
 

160Y3A
160Y3S
160YT3A
160YT3S
 

165Y3A
165Y3S
165YT3A
165YT3S
 

170Y3A
170Y3S
170YT3A
170YT3S
 

175Y3A
175Y3S
175YT3A
175YT3S
 

180Y3A
180Y3S
180YT3A
180YT3S
 

185Y3A
185Y3S
185YT3A
185YT3S
 

190Y3A
190Y3S
190YT3A
190YT3S
 

195Y3A
195Y3S
195YT3A
195YT3S
 
QUADRUPLE

145Y4A
145Y4S
145YT4A
145YT4S
 

150Y4A
150Y4S
150YT4A
150YT4S
 

155Y4A
155Y4S
155YT4A
155YT4S
 

160Y4A
160Y4S
160YT4A
160YT4S
 

165Y4A
165Y4S
165YT4A
165YT4S
 

170Y4A
170Y4S
170YT4A
170YT4S
 

175Y4A
175Y4S
175YT4A
175YT4S
 

180Y4A
180Y4S
180YT4A
180YT4S
 

185Y4A
185Y4S
185YT4A
185YT4S
 

190Y4A
190Y4S
190YT4A
190YT4S
 

195Y4A
195Y4S
195YT4A
195YT4S