Bearings

Image Part Number Description / PDF Quantity Rfq
NTA1220

NTA1220

Mechatronics Bearing Group

BEARING 3/4"ID 1 1/4"OD 0.078"W

293

24044-5

24044-5

TE Connectivity AMP Connectors

BEARING,BALL

0

16NU12

16NU12

Mechatronics Bearing Group

BEARING 1"ID1.125"OD0.75"W PTFE

200

GEZ12ES

GEZ12ES

Mechatronics Bearing Group

BEARING OPEN 3/4X1-1/4X21/32"

183

83691674

83691674

Murrplastik

KMG-F H66/25 BLACK

0

6201-2RS

6201-2RS

Mechatronics Bearing Group

BALL BEARING SEALED 12X32X10MM

484

B45

B45

Mechatronics Bearing Group

BEARING 1/4"ID 7/16"OD 5/16"W

100

B65

B65

Mechatronics Bearing Group

BEARING 3/8"ID 9/16"OD 5/16"W

98

83691604

83691604

Murrplastik

KMG-F H55/16 BLACK

0

GEZ31ES

GEZ31ES

Mechatronics Bearing Group

BEARING DUTY OPEN 1.25X2X1.093"

180

20607-1

20607-1

TE Connectivity AMP Connectors

BEARING,ROD END

0

28772-6

28772-6

TE Connectivity AMP Connectors

BEARING,ROD END,FEMALE

0

28772-2

28772-2

TE Connectivity AMP Connectors

BEARING,ROD END,FEMALE

0

0011410156

0011410156

Woodhead - Molex

BEARING REEL SHAFT

0

16NU16

16NU16

Mechatronics Bearing Group

BEARING 1"ID 1.125"OD 1"W PTFE

200

0636000523

0636000523

Woodhead - Molex

BEARING

0

0637000345

0637000345

Woodhead - Molex

BEARING SEAL 637000345

0

0011319887

0011319887

Woodhead - Molex

BEARING

0

GEZ38ES

GEZ38ES

Mechatronics Bearing Group

BEARING DUTY OPEN 1.5X2X1.125"

195

5.40142.1527526

5.40142.1527526

RAFI

BEARING RAIL V4 12-TLG.

0

Bearings

1. Overview

Bearings are mechanical components designed to reduce friction between moving parts while supporting radial and axial loads. They enable smooth rotational or linear movement in machinery, playing a critical role in modern engineering systems. By converting sliding friction into rolling friction, bearings improve efficiency, durability, and energy consumption across industries such as automotive, aerospace, and industrial manufacturing.

2. Major Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Deep Groove Ball BearingsHigh-speed capability, low torque, suitable for combined radial/axial loadsElectric motors, automotive wheel hubs
Cylindrical Roller BearingsHigh radial load capacity, moderate speedGearboxes, rolling mills
Thrust Ball BearingsSupports pure axial loads, bidirectional movementAutomotive transmissions, crane hooks
Angular Contact Ball BearingsHandles combined radial/axial loads, high precisionMachine tool spindles, pumps
Spherical Roller BearingsSelf-aligning, withstands misalignment and heavy loadsMining equipment, wind turbines
Needle Roller BearingsHigh load capacity in compact radial spaceAutomotive engines, compressors

3. Structure and Components

Typical bearing structures include: - Inner/Outer Rings: Hardened steel rings with precision-ground raceways - Rolling Elements: Balls or rollers made from chrome steel, ceramic, or stainless steel - Cage: Separator maintaining element spacing (brass, steel, or polymer) - Seals/Shields: Prevent contamination ingress and lubricant leakage - Lubrication: Oil or grease filling for friction reduction

4. Key Technical Specifications

ParameterDescriptionImportance
Dynamic Load Rating (C)Max radial load for 1 million revolutionsDetermines service life under operating loads
Static Load Rating (C0)Max load without permanent deformationCritical for slow-speed/heavy-load applications
Speed Limit (nlim)Max rotational speed (RPM)Dictates suitability for high-speed machinery
Precision Class (ABEC)Tolerance levels (e.g., P0, P6, P4)Affects vibration/noise in precision equipment
Material HardnessSurface hardness (HRC 58-64 typical)Impacts wear resistance and fatigue life

5. Application Fields

  • Transportation: Automotive wheel bearings, railway axles
  • Industrial Machinery: Electric motors, pumps, compressors
  • Energy: Wind turbine generators, hydroelectric turbines
  • Aerospace: Jet engine support bearings
  • Consumer Goods: Hard drives, skateboards

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
SKFExplorer Series15-30% longer service life, reduced friction
Schaeffler (FAG)X-life BearingsHigh-speed capability with optimized raceway design
NSKCryfre SeriesSelf-lubricating bearings for food processing
The Timken CompanyTORRINGTON Tapered roller bearings for heavy-duty applications

7. Selection Recommendations

Key considerations: - Load type (radial/axial/combined) and magnitude - Operating speed vs. lubrication requirements - Environmental factors (temperature, corrosion) - Space constraints for dimensional selection - Precision requirements for ABEC class - Total Cost of Ownership (TCO) including maintenance

8. Industry Trends

Current trends include: - Development of hybrid ceramic bearings for high-speed/low-lubrication environments - Integration of condition monitoring sensors in "smart bearings" - Adoption of bio-based lubricants for sustainability - Additive manufacturing for customized bearing geometries - Digital twin technology for predictive maintenance

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