Dayton 2Z821


Reducer, Speed, 72 RPM

2Z821 62017
Average Rating: 5
Read Reviews (2) Write a Review
$338.65+ 4 Business Day Shipping $10.40


ItemSpeed Reducer
TypeIndirect Drive
Shaft OrientationParallel
Input RPM1725
Nominal Output RPM72
Overhung Load (Lb.)175
Nominal Ratio23.4:1
Max. Input HP1/6
Max. Torque (In.-Lbs.)100
Output Torque @ 1/40 HP (In.-Lb.)20
Output Torque @ 1/20 HP (In.-Lb.)40
Output Torque @ 1/12 HP (In.-Lb.)66
Output Torque @ 1/10 HP (In.-Lb.)79
Output Torque @ 1/6 HP (In.-Lb.)100
Number of Stages2
MountingAll Position
LubricationHeavy Duty Oil
Oil SealSpring-Loaded Lip
PinionHeat Treated Steel
GearingHelical First Stage
HousingDie Cast Aluminum Gearcase
FinishGloss Black Powder Coat
Output Shaft Dia. (In.)5/8
Output Shaft Height (In.)3.50
Weight 5.050000


Indirect Drive Parallel Shaft Speed Reducer, Nominal Output Speed 72 RPM, Input RPM 1725-1750, NEMA Frame 42/48, Overhung Load 175 Pounds, Nominal Ratio 23.4:1, Number of Stages 2, Output Torque @ 1/40 HP 20 Inch Pounds, Output Torque @ 1/20 HP 40 Inch Pounds, Output Torque @ 1/12 HP 66 Inch Pounds, Output Torque @ 1/10 HP 79 Inch Pounds, Output Torque @ 1/6 HP 100 Inch Pounds, Output Shaft Height 3.50 Inches, Output Shaft Diameter 5/8 Inch

Indirect-Drive and 42CZ/48C-Face Parallel-Shaft Speed Reducers with Base
  • Base allows high or low positioning of output shaft; face-mounting holes on output side of reducer. Heat-treated steel pinion with helical first stage gearing. Heavy-duty needle and ball bearings with thrust balls. Die-cast aluminum gearcase housing.
  • All-position mounting using face, base, and top Shipped with heavy-duty oil lubricant in gearcase Spring-loaded lip oil seals on input and output shafts

Customer Reviews

Average Product Rating: 5
based on 2 reviews

Dayton Speed Reducer

Tuesday, April 03, 2012

Perfect replacement.

Supersonic shipping, excellent price

Submitted by The Gate Man

Reducer Review

Friday, July 01, 2011

Replaced an existing but broken reducer.

Submitted by Kenneth D
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