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NORD Speed Reducer: 7.5:1, 233 RPM, 1.06 hp Input Max, 239 in-lb Output Max - Hollow Shaft Direct-Drive Right Angle Speed Reducers
NORDHollow Shaft Direct-Drive Right Angle Speed Reducers

NORD Speed Reducer: 7.5:1, 233 RPM, 1.06 hp Input Max, 239 in-lb Output Max

The NORD Speed Reducer (SKU 3G-OTH-136123) is a hollow shaft direct-drive right angle speed reducer with a 7.5:1 ratio. It features a 56C input flange, delivers 233 RPM output, accepts up to 1.06 hp input, and…

SKU 3G-OTH-136123

Also listed as: SK1SI31Y56C751 · SK1SI31Y 56C 7 5 1 · SK1SI31Y-56C-7-5-1

Brand
NORD
Item
Speed Reducer: 7.5:1, 233 RPM, 1.06 hp Input Max, 239 in-lb Output Max
Category
Hollow Shaft Direct-Drive Right Angle Speed Reducers
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Technical Specifications

NORD
Manufacturer Part Number
SK1SI31Y-56C-7.5:1
Type
233 RPM, 239 in-lb Output Max, Hollow, 56C, Any Angle
Input Max
1.06 hp

Technical Documents

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

Product Description

The NORD Speed Reducer (SKU 3G-OTH-136123) is a hollow shaft direct-drive right angle speed reducer with a 7.5:1 ratio. It features a 56C input flange, delivers 233 RPM output, accepts up to 1.06 hp input, and provides a maximum output torque of 239 in-lb. This unit is designed for any-angle mounting and is identified by manufacturer part number SK1SI31Y-56C-7.5:1.

Frequently Asked Questions

What is the NORD Speed Reducer 7.5:1 used for?

This NORD speed reducer is used to reduce motor speed and increase torque in industrial machinery such as conveyors, mixers, and packaging equipment. Its hollow shaft and right-angle design allow direct mounting on a driven shaft, saving space in tight installations.

What are the specifications of the NORD Speed Reducer 7.5:1?

The NORD Speed Reducer (MPN SK1SI31Y-56C-7.5:1) has a 7.5:1 ratio, 233 RPM output, 1.06 hp input max, and 239 in-lb output torque max. It features a 56C input flange, hollow shaft, and any-angle mounting capability.

Where to buy the NORD Speed Reducer 7.5:1 worldwide?

You can source the NORD Speed Reducer 7.5:1 from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring your order arrives reliably.

How to install a NORD hollow shaft speed reducer?

To install a NORD hollow shaft speed reducer, slide the unit onto the driven shaft and secure it using the keyway and locking mechanism. Ensure the shaft is clean and lubricated. Mount the motor to the 56C flange, then align and tighten all fasteners per NORD guidelines.

Used in

Common applications for NORD
Conveyor systems — NORD SK1SI series speed reducers with 30:1 ratio for belt drives in material handling
Food processing washdown zones — NORD right angle washdown-duty AC gearmotor (SKU 5YW33) for mixers
Packaging machinery — NORD hollow shaft speed reducer with 15:1 ratio for film unwind stations
Water treatment — NORD speed reducer with 100:1 ratio for slow-speed agitator drives
Automated assembly lines — NORD 20:1 ratio reducer for indexing tables
Bulk material handling — NORD 60:1 ratio hollow shaft reducer for screw conveyors

NORD Products

3G Electric supplies NORD hollow shaft direct-drive right angle speed reducers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
NORD Speed Reducer: 7.5:1, 233 RPM, 2.88 hp Input Max, 690 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI50Y-56C-7.5:1)
NORD
NORD Speed Reducer: 7.5:1, 233 RPM, 2.88 hp Input Max, 690 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI50Y-56C-7.5:1)
NORD Speed Reducer: 7.5:1, 233 RPM, 5.06 hp Input Max, 1230 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI63Y-56C-7.5:1)
NORD
NORD Speed Reducer: 7.5:1, 233 RPM, 5.06 hp Input Max, 1230 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI63Y-56C-7.5:1)
NORD Speed Reducer: 20:1, 88 RPM, 0.75 hp Input Max, 398 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-20:1)
NORD
NORD Speed Reducer: 20:1, 88 RPM, 0.75 hp Input Max, 398 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-20:1)
NORD Speed Reducer: 25:1, 70 RPM, 0.63 hp Input Max, 372 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-25:1)
NORD
NORD Speed Reducer: 25:1, 70 RPM, 0.63 hp Input Max, 372 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-25:1)
NORD Speed Reducer: 20:1, 88 RPM, 0.5 hp Input Max, 239 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI31Y-56C-20:1)
NORD
NORD Speed Reducer: 20:1, 88 RPM, 0.5 hp Input Max, 239 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI31Y-56C-20:1)
NORD Speed Reducer: 10:1, 175 RPM, 1.25 hp Input Max, 372 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-10:1)
NORD
NORD Speed Reducer: 10:1, 175 RPM, 1.25 hp Input Max, 372 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-10:1)

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NORD Speed Reducer: 40:1, 44 RPM, 2.25 hp Input Max, 2212 in-lb Output Max, Hollow, 140TC, Any Angle (MPN SK1SI75Y-140TC-40:1)
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NORD Speed Reducer: 40:1, 44 RPM, 2.25 hp Input Max, 2212 in-lb Output Max, Hollow, 140TC, Any Angle (MPN SK1SI75Y-140TC-40:1)
NORD Speed Reducer: 40:1, 44 RPM, 0.5 hp Input Max, 407 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-40:1)
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NORD Speed Reducer: 40:1, 44 RPM, 0.5 hp Input Max, 407 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-40:1)
NORD Speed Reducer: 7.5:1, 233 RPM, 1.75 hp Input Max, 389 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-7.5:1)
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NORD Speed Reducer: 7.5:1, 233 RPM, 1.75 hp Input Max, 389 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-7.5:1)
NORD Speed Reducer: 25:1, 70 RPM, 2.75 hp Input Max, 2036 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI75Y-56C-25:1)
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NORD Speed Reducer: 25:1, 70 RPM, 2.75 hp Input Max, 2036 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI75Y-56C-25:1)
NORD Speed Reducer: 15:1, 117 RPM, 3.06 hp Input Max, 1372 in-lb Output Max, Hollow, 180TC (MPN SK1SI63Y-180TC-15:1)
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NORD Speed Reducer: 15:1, 117 RPM, 3.06 hp Input Max, 1372 in-lb Output Max, Hollow, 180TC (MPN SK1SI63Y-180TC-15:1)
NORD Speed Reducer: 5:1, 350 RPM, 1.3 hp Input Max, 204 in-lb Output Max, Hollow, 140TC, Any Angle (MPN SK1SI75Y-140TC-5:1)
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NORD Speed Reducer: 5:1, 350 RPM, 1.3 hp Input Max, 204 in-lb Output Max, Hollow, 140TC, Any Angle (MPN SK1SI75Y-140TC-5:1)
NORD Speed Reducer: 30:1, 58 RPM, 0.63 hp Input Max, 442 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-30:1)
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NORD Speed Reducer: 30:1, 58 RPM, 0.63 hp Input Max, 442 in-lb Output Max, Hollow, 56C, Any Angle (MPN SK1SI40Y-56C-30:1)
NORD Speed Reducer: 30:1, 58 RPM, 2.25 hp Input Max, 1929 in-lb Output Max, Hollow, 180TC, Any Angle (MPN SK1SI75Y-180TC-30:1)
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NORD Speed Reducer: 30:1, 58 RPM, 2.25 hp Input Max, 1929 in-lb Output Max, Hollow, 180TC, Any Angle (MPN SK1SI75Y-180TC-30:1)