Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Dayton Speed Reducer: 87:1, 20 RPM, 0.75 hp Input Max, 998 in-lb Output Max - Indirect-Drive Parallel Speed Reducers
DaytonIndirect-Drive Parallel Speed Reducers

Dayton Speed Reducer: 87:1, 20 RPM, 0.75 hp Input Max, 998 in-lb Output Max

The DAYTON Speed Reducer (SKU 4Z856) is an indirect-drive parallel speed reducer with a 87:1 ratio, delivering 20 RPM and 998 in-lb maximum output torque from a 0.75 hp maximum input, featuring a keyed output shaft…

SKU 3G-OTH-137619

Brand
Dayton
Item
Speed Reducer: 87:1, 20 RPM, 0.75 hp Input Max, 998 in-lb Output Max
Category
Indirect-Drive Parallel Speed Reducers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Dayton
Manufacturer Part Number
4Z856
Type
20 RPM, 998 in-lb Output Max, Keyed
Input Max
0.75 hp
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DAYTON Speed Reducer (SKU 4Z856) is an indirect-drive parallel speed reducer with a 87:1 ratio, delivering 20 RPM and 998 in-lb maximum output torque from a 0.75 hp maximum input, featuring a keyed output shaft. 3G Electric interprets your demand for this OEM-specified component, sourcing it across 14 industrial departments — with specialist depth in combustion, pumps, and controls as an authorised distributor — to provide a quoted, supported solution.

Frequently Asked Questions

What is the DAYTON 4Z856 speed reducer used for?

The DAYTON 4Z856 speed reducer is used in industrial machinery to reduce motor speed and increase torque. It is ideal for conveyors, packaging equipment, and material handling systems where precise, low-speed output is required. This parallel-shaft reducer handles heavy loads with a 998 in-lb output torque.

What are the specifications of the DAYTON 4Z856 speed reducer?

The DAYTON 4Z856 is a parallel-shaft speed reducer with a 87:1 ratio, 20 RPM output, 0.75 hp maximum input, and 998 in-lb output torque. It features a keyed output shaft and is designed for continuous industrial duty. The manufacturer part number is 4Z856.

Where to buy the DAYTON 4Z856 speed reducer worldwide?

You can source the DAYTON 4Z856 speed reducer through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Dayton components for your application.

How to select the right DAYTON speed reducer for my application?

To select the right Dayton speed reducer, match the required output speed and torque to the motor input. For the 4Z856, ensure your motor does not exceed 0.75 hp input and that the load does not surpass 998 in-lb. Verify shaft keyway dimensions and mounting configuration for proper fit.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton indirect-drive parallel speed reducers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
DAYTON Speed Reducer: 57.5:1, 30 RPM, 0.5 hp Input Max, 998 in-lb Output Max, Keyed (MPN 4Z857). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 57.5:1, 30 RPM, 0.5 hp Input Max, 998 in-lb Output Max, Keyed (MPN 4Z857). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 17.5:1, 99 RPM, 0.75 hp Input Max, 454 in-lb Output Max, Keyed (MPN 4Z860). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 17.5:1, 99 RPM, 0.75 hp Input Max, 454 in-lb Output Max, Keyed (MPN 4Z860). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 19:1, 90 RPM, 0.33 hp Input Max, 225 in-lb Output Max, Any Angle (MPN 4Z502). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 19:1, 90 RPM, 0.33 hp Input Max, 225 in-lb Output Max, Any Angle (MPN 4Z502). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 87:1, 20 RPM, 0.75 hp Input Max, 998 in-lb Output Max, Keyed, 56C, Horizontal (MPN 4Z720). Key specifications — attr665544: 56C; attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 87:1, 20 RPM, 0.75 hp Input Max, 998 in-lb Output Max, Keyed, 56C, Horizontal (MPN 4Z720). Key specifications — attr665544: 56C; attr85418: DAYTON.
DAYTON Speed Reducer: 51:1, 34 RPM, 0.17 hp Input Max, 260 in-lb Output Max, Any Angle (MPN 4Z499). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 51:1, 34 RPM, 0.17 hp Input Max, 260 in-lb Output Max, Any Angle (MPN 4Z499). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 31:1, 55 RPM, 0.75 hp Input Max, 816 in-lb Output Max, Keyed, 56C, Horizontal (MPN 4Z616). Key specifications — attr665544: 56C; attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 31:1, 55 RPM, 0.75 hp Input Max, 816 in-lb Output Max, Keyed, 56C, Horizontal (MPN 4Z616). Key specifications — attr665544: 56C; attr85418: DAYTON.

More from Dayton

View all Dayton parts →
DAYTON Speed Reducer: 28.1:1, 61 RPM, 0.25 hp Input Max, 225 in-lb Output Max, Any Angle (MPN 4Z501). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 28.1:1, 61 RPM, 0.25 hp Input Max, 225 in-lb Output Max, Any Angle (MPN 4Z501). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 38.5:1, 45 RPM, 0.5 hp Input Max, 665 in-lb Output Max, Keyed (MPN 4Z858). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 38.5:1, 45 RPM, 0.5 hp Input Max, 665 in-lb Output Max, Keyed (MPN 4Z858). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 23.4:1, 72 RPM, 0.17 hp Input Max, 100 in-lb Output Max, Any Angle (MPN 2Z821). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 23.4:1, 72 RPM, 0.17 hp Input Max, 100 in-lb Output Max, Any Angle (MPN 2Z821). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 31:1, 56 RPM, 0.75 hp Input Max, 816 in-lb Output Max, Keyed (MPN 4Z859). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 31:1, 56 RPM, 0.75 hp Input Max, 816 in-lb Output Max, Keyed (MPN 4Z859). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 92:1, 19 RPM, 0.1 hp Input Max, 290 in-lb Output Max, Any Angle (MPN 4Z498). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 92:1, 19 RPM, 0.1 hp Input Max, 290 in-lb Output Max, Any Angle (MPN 4Z498). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 36:1, 48 RPM, 0.25 hp Input Max, 295 in-lb Output Max, Any Angle (MPN 4Z500). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 36:1, 48 RPM, 0.25 hp Input Max, 295 in-lb Output Max, Any Angle (MPN 4Z500). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 12.5:1, 140 RPM, 1 hp Input Max, 427 in-lb Output Max, Keyed (MPN 4Z861). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 12.5:1, 140 RPM, 1 hp Input Max, 427 in-lb Output Max, Keyed (MPN 4Z861). Key specifications — attr85418: DAYTON.
DAYTON Speed Reducer: 118.5:1, 15 RPM, 0.05 hp Input Max, 200 in-lb Output Max, Any Angle (MPN 2Z819). Key specifications — attr85418: DAYTON.
Dayton
DAYTON Speed Reducer: 118.5:1, 15 RPM, 0.05 hp Input Max, 200 in-lb Output Max, Any Angle (MPN 2Z819). Key specifications — attr85418: DAYTON.