Knobs

Part Number	Description / PDF	Quantity
KN0405003P4--21 Richco, Inc. (Essentra Components)	CLAMPING 3 ARM KNOB 1.750 IN DIA	500
KN020750K6C-N21 Richco, Inc. (Essentra Components)	PUSH PULL KNOB 1.000 IN DIAMETER	500
KNH4-HEXTH1---- Richco, Inc. (Essentra Components)	SELF-ASSEMBLY WING KNOB 1.250 IN	1200
KN4C0625K6--A21 Richco, Inc. (Essentra Components)	PUSH PULL KNOB 1.000 IN DIAMETER	650
KN5C1000F6---21 Richco, Inc. (Essentra Components)	CLAMPING FLUTED KNOB 2.380 IN DI	250
KN4C----F6-L-21 Richco, Inc. (Essentra Components)	CLAMPING FLUTED KNOB 2.380 IN DI	250
KN5C----R3SB-22 Richco, Inc. (Essentra Components)	CLAMPING STAR KNOB 1.570 IN DIAM	575
KNH1-HEX5S3A--- Richco, Inc. (Essentra Components)	SELF-ASSEMBLY STAR KNOB 1.750 IN	700
KN4C----4S2BS21 Richco, Inc. (Essentra Components)	CLAMPING 4 ARM KNOB 1.400 IN DIA	700
29RN147WT Richco, Inc. (Essentra Components)	WING PRESS LOCK THUMB SCREW KNOB	3995
KN6C----B4---21 Richco, Inc. (Essentra Components)	BALL KNOB 1.470 IN DIAMETER WITH	250
KN6C----RT5--21 Richco, Inc. (Essentra Components)	CLAMPING 3 ARM KNOB 2.000 IN DIA	800
KN5C----4P7B-22 Richco, Inc. (Essentra Components)	CLAMPING 4 ARM KNOB 2.500 IN DIA	500
KSN6----N2--5-- Richco, Inc. (Essentra Components)	SELF-ASSEMBLY PUSH PULL KNOB 0.3	10000
KNM6----B4---22 Richco, Inc. (Essentra Components)	BALL KNOB 1.470 IN DIAMETER WITH	250
KN4C----5S2L-21 Richco, Inc. (Essentra Components)	CLAMPING STAR KNOB 1.380 IN DIAM	1000
KN82----K6D--22 Richco, Inc. (Essentra Components)	PUSH PULL KNOB 1.000 IN DIAMETER	600
KSN1----N3--5-- Richco, Inc. (Essentra Components)	SELF-ASSEMBLY PUSH PULL KNOB 0.5	5000
KN4C----5SAB-21 Richco, Inc. (Essentra Components)	CLAMPING STAR KNOB 2.250 IN DIAM	450
KN4C1625K3--N21 Richco, Inc. (Essentra Components)	PUSH PULL KNOB 0.750 IN DIAMETER	750

Knobs

1. Overview

Knobs are mechanical components designed for manual adjustment, control, or fixation of devices and equipment. As critical elements in hardware systems, they provide user interfaces for torque transmission, positional adjustment, and functional control. Modern knob designs integrate ergonomic principles, material science, and precision engineering to ensure reliable performance across industrial, commercial, and consumer applications.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Wing Screws	Hand-adjustable fastening with wing-shaped heads	Panel fastening in electronics enclosures
Dial Knobs	Precision adjustment with graduated scales	Lab equipment and audio mixers
Keyed Locknuts	Security-focused design with key-operated adjustment	Machinery calibration systems
Pull-to-Release Knobs	Integrated locking mechanism with axial release	Industrial control panels

3. Structure and Composition

Typical knob assemblies consist of: - Body: Formed from metal alloys (aluminum, brass) or engineered plastics (nylon, polycarbonate) - Threaded Insert: Brass or stainless steel internal threads for secure mounting - Retention Feature: Knurling, splines, or set screws for shaft coupling - Surface Treatment: Anodizing, powder coating, or electroplating for corrosion resistance

4. Key Technical Specifications

Parameter	Significance
Material Hardness (Shore/Brinell)	Determines wear resistance and load capacity
Thread Engagement Depth	Affects axial load transmission efficiency
Maximum Torque Rating (Nm)	Critical for rotational force transmission
Temperature Resistance Range	Defines operational limits in extreme environments
Surface Friction Coefficient	Impacts tactile feedback and slip resistance

5. Application Fields

Industrial Machinery: CNC machine controls, conveyor belt tensioners
Electronics: Audio equipment attenuators, test instrument selectors
Automotive: HVAC control knobs, seat adjustment mechanisms
Aerospace: Cockpit instrumentation controls, avionics panel fasteners
Medical Devices: Diagnostic equipment parameter adjusters

6. Leading Manufacturers and Products

Manufacturer	Product Series	Key Features
Misumi	KA2000 Series	Modular design with 12-position indexing
Knobs-R-Us	ProGrip XT	Ergonomic thermoplastic elastomer coating
Eclipse Industrial	Aluminum Anodized Line	MIL-STD-810G environmental compliance

7. Selection Guidelines

Key consideration factors: - Environmental conditions (temperature, chemical exposure) - Required torque transmission capacity - Mounting shaft geometry compatibility - Regulatory compliance (REACH, RoHS) - Aesthetic requirements for user interface

8. Industry Trends

Current development directions include: - Integration of smart materials with self-lubricating properties - Miniaturization for semiconductor manufacturing equipment - Haptic feedback enhancement through surface micro-texturing - Adoption of additive manufacturing for complex geometries - Increased use of corrosion-resistant polymer composites