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KHK GEARS Internal Ring Gear SIR3-120 - Metric Internal Gears
KHK GEARSMetric Internal Gears

KHK GEARS Internal Ring Gear SIR3-120

3G Electric supplies the KHK GEARS Internal Ring Gear (Module m 3, MPN SIR3-120), a metric internal gear with 120 teeth and a 360 mm pitch diameter, made from black oxide coated carbon steel. We interpret your demand…

SKU 3G-OTH-723919

Also listed as: SIR3120 · SIR3 120

Brand
KHK GEARS
Item
Internal Ring Gear SIR3-120
Part Number
SIR3-120
Category
Metric Internal Gears
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

KHK GEARS
Manufacturer Part Number
SIR3-120
Type
Black Oxide Coated Carbon Steel
Teeth
120
Pitch Dia
360 mm

Technical Documents

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

Product Description

3G Electric supplies the KHK GEARS Internal Ring Gear (Module m 3, MPN SIR3-120), a metric internal gear with 120 teeth and a 360 mm pitch diameter, made from black oxide coated carbon steel. We interpret your demand for genuine industrial gearing components and deliver across 14 departments—with specialist depth in combustion, pumps, and controls as an authorised distributor for brands like Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.

Frequently Asked Questions

What is the KHK GEARS Internal Ring Gear SIR3-120 used for?

The KHK GEARS Internal Ring Gear SIR3-120 is used in power transmission systems where compact, high-torque gearing is required, such as planetary gearboxes, rotary indexing tables, and industrial machinery. Its 120 teeth and 360 mm pitch diameter suit moderate-speed, high-load applications across manufacturing, material handling, and automation.

What are the specifications of the KHK GEARS Internal Ring Gear SIR3-120?

The KHK GEARS Internal Ring Gear SIR3-120 has module m 3, 120 teeth, a 360 mm pitch diameter, and is made from black oxide coated carbon steel. The manufacturer part number is SIR3-120. It is a metric internal gear designed for precise meshing with external spur gears in industrial drives.

Where to buy KHK GEARS Internal Ring Gear SIR3-120 worldwide?

3G Electric supplies the KHK GEARS Internal Ring Gear SIR3-120 worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine components across 14 departments, including specialist expertise in combustion, pumps, and controls for brands like Schneider, ABB, and Siemens.

How to select the correct internal ring gear for a planetary gearbox?

To select the correct internal ring gear, match the module, number of teeth, and pitch diameter to your planetary gearbox design. The KHK GEARS SIR3-120 (module m 3, 120 teeth, 360 mm pitch dia) is a common choice. Ensure the gear material and coating suit your environment—black oxide coated carbon steel offers moderate corrosion resistance for dry or lightly lubricated applications.

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KHK GEARS Products

3G Electric supplies KHK GEARS metric internal gears. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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