Knobs

Image Part Number Description / PDF Quantity Rfq
2830CG

2830CG

Davies Molding, LLC.

KNOB 4 ARM 1/2"-13 PHENOLIC

250

3035HZ

3035HZ

Davies Molding, LLC.

KNOB 3 ARM 3/8"-16 PHENOLIC

0

2965KD

2965KD

Davies Molding, LLC.

KNOB FLUTED 5/16"-18 PHENOLIC

100

2837-L

2837-L

Davies Molding, LLC.

KNOB 4 ARM 1/4"-20 NYLON

249

2830-V

2830-V

Davies Molding, LLC.

KNOB 4 ARM 3/8"-24 PHENOLIC

0

2855-B

2855-B

Davies Molding, LLC.

KNOB 5 ARM 1/4"-20 NYLON

0

3035AY

3035AY

Davies Molding, LLC.

KNOB 3 ARM #10-32 PHENOLIC

250

2830-T

2830-T

Davies Molding, LLC.

KNOB 4 ARM 3/8"-16 PHENOLIC

95

2825-E

2825-E

Davies Molding, LLC.

KNOB 4 ARM 3/8"-16 NYLON

0

4901AY

4901AY

Davies Molding, LLC.

KNOB SMOOTH THERMOSET POLYESTER

100

3036-D

3036-D

Davies Molding, LLC.

KNOB 3 ARM 5/16"-18 POLYPRO

0

2830ED

2830ED

Davies Molding, LLC.

KNOB 4 ARM THERMOSET POLYESTER

200

3090-M

3090-M

Davies Molding, LLC.

KNOB SMOOTH 5/16"-18 PHENOLIC

210

0035CL

0035CL

Davies Molding, LLC.

KNOB SMOOTH 5/16"-18 PHENOLIC

0

0073-V

0073-V

Davies Molding, LLC.

KNOB SMOOTH THERMOSET POLYESTER

100

0070AC

0070AC

Davies Molding, LLC.

32MM M6X1-6H THERMOSET LEVER KNO

121

2860BF

2860BF

Davies Molding, LLC.

KNOB 5 ARM THERMOSET POLYESTER

100

3036-E

3036-E

Davies Molding, LLC.

KNOB 3 ARM 3/8"-16 POLYPROPYLENE

0

2830AG

2830AG

Davies Molding, LLC.

KNOB 4 ARM 3/8"-16 PHENOLIC

0

3036-S

3036-S

Davies Molding, LLC.

KNOB 3 ARM M8 X 1.25 POLYPRO

100

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

TypeFunctional CharacteristicsApplication Examples
Wing ScrewsHand-adjustable fastening with wing-shaped headsPanel fastening in electronics enclosures
Dial KnobsPrecision adjustment with graduated scalesLab equipment and audio mixers
Keyed LocknutsSecurity-focused design with key-operated adjustmentMachinery calibration systems
Pull-to-Release KnobsIntegrated locking mechanism with axial releaseIndustrial 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

ParameterSignificance
Material Hardness (Shore/Brinell)Determines wear resistance and load capacity
Thread Engagement DepthAffects axial load transmission efficiency
Maximum Torque Rating (Nm)Critical for rotational force transmission
Temperature Resistance RangeDefines operational limits in extreme environments
Surface Friction CoefficientImpacts 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

ManufacturerProduct SeriesKey Features
MisumiKA2000 SeriesModular design with 12-position indexing
Knobs-R-UsProGrip XTErgonomic thermoplastic elastomer coating
Eclipse IndustrialAluminum 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

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