Knobs

Image Part Number Description / PDF Quantity Rfq
29R008WT

29R008WT

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

2000

29M600RGR

29M600RGR

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29F038WT

29F038WT

Richco, Inc. (Essentra Components)

FLOWERETTE PRESS LOCK THUMB SCRE

0

29M500RGR

29M500RGR

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29R147RD

29R147RD

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29M601RB

29M601RB

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

996

29W014WT

29W014WT

Richco, Inc. (Essentra Components)

WING PRESS LOCK THUMB SCREW KNOB

0

29F038GR

29F038GR

Richco, Inc. (Essentra Components)

FLOWERETTE PRESS LOCK THUMB SCRE

0

29F516WT

29F516WT

Richco, Inc. (Essentra Components)

FLOWERETTE PRESS LOCK THUMB SCRE

0

29M600RWT

29M600RWT

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29RN147N

29RN147N

Richco, Inc. (Essentra Components)

WING PRESS LOCK THUMB SCREW KNOB

0

29R004GR

29R004GR

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29F516GR

29F516GR

Richco, Inc. (Essentra Components)

FLOWERETTE PRESS LOCK THUMB SCRE

0

29M801RBL

29M801RBL

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29R147WT

29R147WT

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29R008GR

29R008GR

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29R004WT

29R004WT

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29M300RB

29M300RB

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

29WN014N

29WN014N

Richco, Inc. (Essentra Components)

WING PRESS LOCK THUMB SCREW KNOB

0

29R141WT

29R141WT

Richco, Inc. (Essentra Components)

ROUND PRESS LOCK THUMB SCREW KNO

0

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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