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Rigid Coupling

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Rigid Coupling Specification

Connection
Clamp/Split

Sealing
No sealing

Bore
Keyed or plain bore, Customizable

Head Code
Round

Torque
Up to 250 Nm

Max. Speed
Up to 4000 RPM

Material
Mild Steel, Stainless Steel

Structure
One piece or two piece design

Standard
DIN, ISO, ANSI available

Inner Diameter
18 mm (customizable)

Outer Diameter
35 mm (customizable)

Application
Pipe and shaft connection, Industrial machinery, Power transmission

Surface Treatment
Black Oxide, Phosphated

Technique
Precision Machined

Shape
Cylindrical

Hardness
40-60 HRC

Precision
High concentricity, less than 0.05 mm TIR

Custom Sizes
Available upon request

Corrosion Resistance
High (Depending on Material & Coating)

Mounting
Axial and Radial Set Screws or Bolts

Temperature Range
-40°C to 200°C

Color
Silver, Black (Depending on Surface Finish)

Weight
Varies as per size, typically 200g to 8kg

Length
25 mm to 180 mm

About Rigid Coupling

Rigid Coupling

Specifications :

Coupling Size	Finish Bore		Ø A	Ø B	C	Ø D	E	Weight kg.	Max. RPM
Coupling Size	Min.	Max.	Ø A	Ø B	C	Ø D	E	Weight kg.	Max. RPM
DRC 100	10	50	120	70	46.5	93	15	7	8000
DRC 101	20	60	170	85	57.5	115	17	14	6300
DRC 102	30	75	185	110	72.5	145	17	21	5000
DRC 103	40	90	220	130	87.5	175	20	35	4000
DRC 104	50	110	250	160	107.5	215	20	52	3350
DRC 105	60	130	200	185	115	230	25	75	2800
DRC 106	75	150	320	215	130	260	28	108	2800
DRC 107	90	170	350	240	145	290	28	145	2100
DRC 108	105	200	380	285	160	320	25	175	1900
DRC 109	125	220	430	315	170	340	25	268	1700
DRC 110	140	260	490	370	185	370	25	388	1400

Engineered for Precision and Versatility

Rigid couplings are manufactured for high-precision alignment with less than 0.05 mm TIR, ensuring efficient power transmission and minimizing vibration. Their versatile design accommodates both keyed and plain bores, with customizations available upon request, making them suitable for a broad array of shaft and pipe connection needs across industries.

Robust Construction for Demanding Environments

Constructed from mild steel or stainless steel, these couplings are treated with surface finishes like black oxide or phosphating to enhance durability and corrosion resistance. Designed to perform reliably in temperatures from -40C to 200C, they withstand harsh industrial environments while maintaining consistent performance and minimal wear.

Flexible Mounting Options and International Standards

Options for axial and radial set screws, bolts, clamp/split connections, and both one-piece and two-piece structures allow for secure and adaptable mounting. Our rigid couplings are manufactured in compliance with DIN, ISO, and ANSI standards, making them compatible with broad industrial machinery specifications.

FAQs of Rigid Coupling:

Q: How are rigid couplings installed on shafts or pipes?

A: Rigid couplings are typically installed using axial and radial set screws or bolts, depending on the specific design. The clamp or split connection ensures a secure fit, and installation can be performed with standard tools. Detailed instructions and custom options are available to suit various requirements.

Q: What is the main benefit of using a high-precision rigid coupling?

A: A high-precision rigid coupling ensures exceptional shaft alignment with less than 0.05 mm Total Indicator Reading (TIR). This reduces vibration and wear, leading to smoother operation and extended machinery lifespanespecially vital in power transmission and industrial applications.

Q: Where are these rigid couplings commonly used?

A: These couplings are ideal for connecting pipes and shafts in industrial machinery, power transmission systems, and equipment requiring rigid, backlash-free connections. They are widely used across manufacturing, automation, and heavy-duty mechanical systems.

Q: What customization options are available for these couplings?

A: Bore sizes, lengths, diameters, and surface finishes can be customized to meet specific application needs. Both keyed and plain bores are offered, and customers can request special dimensions, materials, or designs to ensure compatibility with their equipment.

Q: Which processes are used in the manufacturing of these rigid couplings?

A: Precision machining techniques are applied to produce couplings with high accuracy and surface finish. Surface treatments such as black oxide and phosphating are used to enhance corrosion resistance, and thorough quality checks ensure conformity with DIN, ISO, or ANSI standards.

Q: What materials are available, and how do they affect corrosion resistance?

A: Rigid couplings are mainly offered in mild steel or stainless steel. Stainless steel variants provide superior corrosion resistance, while specific surface treatments like phosphating or black oxide further improve durability, especially in harsh or outdoor environments.

Q: When should a rigid coupling be chosen over a flexible coupling?

A: Choose a rigid coupling when absolute shaft alignment is required and there is minimal shaft misalignment, as they do not accommodate angular, parallel, or axial displacement. Theyre ideal for precise, backlash-free connections where rigidity and exact alignment are critical.

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