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Machrio

Plain Bearings

On Machrio, the plain bearings category is also carrying oil seal intent, so the page needs to explicitly help buyers compare radial shaft seals by size, lip geometry, compound, and operating environment. Buyers searching oil seals are rarely browsing casually; they want to cross-check fit and failure risk quickly.

Procurement Guide

How Buyers Should Source Plain Bearings

On Machrio, the plain bearings category is also carrying oil seal intent, so the page needs to explicitly help buyers compare radial shaft seals by size, lip geometry, compound, and operating environment. Buyers searching oil seals are rarely browsing casually; they want to cross-check fit and failure risk quickly.

What to Compare

  • Start with shaft diameter, housing bore, width, and whether the application is oil retention, dust exclusion, or both.
  • Compare single-lip, dual-lip, and spring-loaded designs based on contamination risk, shaft finish, and direction of sealing duty.
  • Match the elastomer to temperature, lubricant, speed, and chemical exposure instead of assuming NBR, FKM, and PU are interchangeable.

Common Applications

  • Motors, pumps, gearboxes, reducers, and rotating process equipment
  • Maintenance replacement for leaking or contaminated shaft-seal positions
  • Procurement workflows where cross-reference fit and material confirmation matter before order

RFQ Checklist

  • Record shaft diameter, housing bore, seal width, and rotation or pressure conditions.
  • Confirm lip design, spring requirement, and elastomer compatibility with lubricant and temperature.
  • Check whether dust exclusion, washdown, or abrasive contamination is part of the service environment.
Request a QuoteTalk to Sourcing

Use RFQ when you need cross-SKU comparison, bulk pricing, or application support.

666 products

Steel Deep Groove Ball Bearing 2.36in Bore 5.12in OD for Industrial Machinery
Industrial|SKU: JR4201
Steel Deep Groove Ball Bearing 2.36in Bore 5.12in OD for Industrial Machinery

This steel deep groove ball bearing is engineered for high-speed industrial machinery, featuring a 2.36-inch bore, 5.12-inch outside diameter, and 1.22-inch width. Constructed from durable chrome steel, it incorporates dual metal shields to retain lubrication while excluding contaminants, ensuring extended service life in harsh environments. The C3 internal clearance specification accommodates thermal expansion and heavy radial loads, maintaining precise rotational accuracy under demanding operating conditions. Ideal for motors, pumps, and conveyor systems requiring reliable performance without frequent maintenance intervals.

$69.99In Stock
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Steel Deep Groove Ball Bearing 2.36in Bore 5.12in OD, Pkg Qty 10
Industrial|SKU: AY2580
Steel Deep Groove Ball Bearing 2.36in Bore 5.12in OD, Pkg Qty 10

This steel deep groove ball bearing delivers reliable radial load support for demanding industrial applications. Featuring a 2.36-inch bore diameter and a 5.12-inch outside diameter, the unit measures 1.22 inches in width to fit standard housing configurations. Constructed from high-grade steel, it ensures exceptional durability and resistance to wear under continuous operation. The double-sealed design effectively retains lubrication while excluding contaminants, minimizing maintenance requirements. Sold in packages of ten, these bearings provide a cost-effective solution for machinery requiring precise rotational stability and long service life.

$169.99In Stock
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Steel Deep Groove Ball Bearing 2.36in Bore 5.12in OD, Pkg Qty 5
Industrial|SKU: RK2606
Steel Deep Groove Ball Bearing 2.36in Bore 5.12in OD, Pkg Qty 5

This steel deep groove ball bearing is engineered for high-speed industrial applications requiring reliable radial load support. Featuring a 2.36-inch bore diameter and a 5.12-inch outside diameter, the unit measures 1.22 inches in width to fit standard housing configurations. The C3 internal clearance specification accommodates thermal expansion during operation, while the dual metal shields (2Z) provide effective contamination protection without compromising rotational efficiency. Constructed from durable hardened steel, this component ensures extended service life in demanding mechanical environments where precision and structural integrity are paramount.

$99.99In Stock
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Steel Deep Groove Ball Bearing 2.56in Bore 3.94in OD 0.71in Length
Industrial|SKU: AA9013
Steel Deep Groove Ball Bearing 2.56in Bore 3.94in OD 0.71in Length

This steel deep groove ball bearing is engineered for reliable rotational support in demanding industrial applications. Featuring a 2.56-inch bore diameter and a 3.94-inch outside diameter, the unit measures 0.71 inches in length to fit standard housing configurations. Constructed from high-grade steel, it offers superior load capacity and resistance to wear under continuous operation. The integrated sealing mechanism effectively retains lubrication while excluding contaminants, ensuring extended service life with minimal maintenance requirements for heavy machinery and motor assemblies.

$69.99In Stock
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Steel Deep Groove Ball Bearing 2.56in Bore 3.94in OD 0.71in L, Pkg Qty 20
Industrial|SKU: AY2471
Steel Deep Groove Ball Bearing 2.56in Bore 3.94in OD 0.71in L, Pkg Qty 20

Engineered for high-speed rotational applications, this steel deep groove ball bearing features a 2.56-inch bore diameter and a 3.94-inch outside diameter with a compact 0.71-inch width. Constructed from durable hardened steel, the unit incorporates dual rubber seals to effectively retain lubrication and exclude contaminants, ensuring reliable performance in demanding industrial environments. Its optimized internal geometry supports significant radial loads while accommodating moderate axial forces in both directions. Sold in packages of 20, these bearings provide a cost-effective solution for machinery requiring precise alignment and extended service life without frequent maintenance intervals.

$179.99In Stock
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Steel Deep Groove Ball Bearing 2.56in Bore 4.72in OD, Pkg Qty 10
Industrial|SKU: AY2525
Steel Deep Groove Ball Bearing 2.56in Bore 4.72in OD, Pkg Qty 10

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.56-inch bore and a 4.72-inch outside diameter. With a compact width of 0.91 inches, the unit delivers optimal radial load capacity while maintaining a low-friction profile for extended operational life. Constructed from durable hardened steel, it ensures reliable performance in demanding environments requiring precise rotational stability. Sold in packages of ten, these bearings provide a cost-effective solution for machinery maintenance and assembly lines requiring consistent dimensional accuracy and structural integrity.

$109.99In Stock
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Steel Deep Groove Ball Bearing 2.56in Bore 4.72in OD, Pkg Qty 8
Industrial|SKU: RK2338
Steel Deep Groove Ball Bearing 2.56in Bore 4.72in OD, Pkg Qty 8

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.56-inch bore diameter and a 4.72-inch outside diameter to ensure precise shaft alignment. With a compact width of 0.91 inches, the unit delivers robust radial load capacity while maintaining low friction during continuous operation. Constructed from durable hardened steel, it offers exceptional resistance to wear and deformation under demanding conditions. Ideal for heavy machinery and motor assemblies, this component provides reliable performance and extended service life in rigorous B2B environments.

$89.99In Stock
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Steel Deep Groove Ball Bearing 2.56in Bore 4.72in OD, Pkg Qty 8
Industrial|SKU: AY2526
Steel Deep Groove Ball Bearing 2.56in Bore 4.72in OD, Pkg Qty 8

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.56-inch bore and a 4.72-inch outside diameter to ensure precise shaft alignment. With a compact width of 0.91 inches, the unit delivers robust radial load capacity while maintaining a low-profile design for space-constrained assemblies. Constructed from durable hardened steel, it offers exceptional resistance to wear and deformation under continuous operation. Sold in packages of eight, these bearings provide reliable performance and extended service life for heavy-duty machinery without requiring frequent maintenance or replacement.

$89.99In Stock
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Steel Deep Groove Ball Bearing 2.56in Bore 4.72in OD, Pkg Qty 8
Industrial|SKU: AY2527
Steel Deep Groove Ball Bearing 2.56in Bore 4.72in OD, Pkg Qty 8

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.56-inch bore diameter and a 4.72-inch outside diameter to ensure precise shaft alignment. With a compact width of 0.91 inches, the unit offers robust radial load capacity while maintaining a low-profile design suitable for space-constrained assemblies. Constructed from durable hardened steel, it provides exceptional resistance to wear and deformation under continuous operation. Ideal for motors, gearboxes, and conveyor systems, this component delivers reliable performance in demanding environments where structural integrity and dimensional accuracy are critical.

$99.99In Stock
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Steel Deep Groove Ball Bearing 2.56in Bore 5.51in OD 1.30in L, Pkg Qty 5
Industrial|SKU: QF0011
Steel Deep Groove Ball Bearing 2.56in Bore 5.51in OD 1.30in L, Pkg Qty 5

This steel deep groove ball bearing delivers reliable rotational support for heavy-duty industrial applications. Featuring a 2.56-inch bore diameter and a 5.51-inch outside diameter, the unit measures 1.30 inches in length to fit standard housing configurations. Constructed from high-grade steel, it ensures exceptional durability and resistance to wear under significant radial loads. The double-shielded design effectively retains lubrication while excluding contaminants, extending service life in demanding environments. Ideal for motors, gearboxes, and conveyor systems requiring precise alignment and consistent performance without frequent maintenance intervals.

$99.99In Stock
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Steel Deep Groove Ball Bearing 2.56in Bore 5.51in OD for Industrial Machinery
Industrial|SKU: AA5291312
Steel Deep Groove Ball Bearing 2.56in Bore 5.51in OD for Industrial Machinery

Engineered for demanding industrial machinery, this steel deep groove ball bearing delivers reliable rotational support with minimal maintenance. Featuring a precise 2.56-inch bore diameter and a 5.51-inch outside diameter, the unit ensures seamless integration into heavy-duty shaft assemblies. Its robust 1.30-inch width provides enhanced load distribution and structural stability under high-stress conditions. Constructed from premium-grade steel, this component offers superior resistance to wear and deformation, extending service life in continuous operation environments while maintaining strict dimensional tolerances for optimal performance.

$69.99In Stock
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Steel Deep Groove Ball Bearing 2.56in Bore 5.51in OD, Pkg Qty 8
Industrial|SKU: AY2584
Steel Deep Groove Ball Bearing 2.56in Bore 5.51in OD, Pkg Qty 8

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.56-inch bore diameter and a 5.51-inch outside diameter to ensure precise shaft alignment. With a compact width of 1.30 inches, the unit offers robust radial load capacity while maintaining a low-profile design suitable for space-constrained assemblies. Constructed from durable hardened steel, it provides exceptional resistance to wear and deformation under continuous operation. Sold in packages of eight, these bearings deliver reliable performance and extended service life for heavy-duty machinery without requiring frequent maintenance intervals.

$179.99In Stock
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Steel Deep Groove Ball Bearing 2.56in ID 4.72in OD for Industrial Machinery
Industrial|SKU: AA9103
Steel Deep Groove Ball Bearing 2.56in ID 4.72in OD for Industrial Machinery

Engineered for demanding industrial machinery, this steel deep groove ball bearing delivers reliable rotational support with minimal maintenance. Featuring a 2.56-inch bore diameter and a 4.72-inch outside diameter, the unit ensures precise fitment within standard housing configurations. Its robust steel construction provides exceptional load capacity and resistance to wear under high-stress conditions. With a compact width of 0.91 inches, this component optimizes space efficiency while maintaining structural integrity. Ideal for applications requiring consistent performance in heavy-duty environments, it offers long service life and operational stability.

$59.99In Stock
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Steel Deep Groove Ball Bearing 2.756 in Bore 3.543 in OD for Industrial Use
Industrial|SKU: JR4539
Steel Deep Groove Ball Bearing 2.756 in Bore 3.543 in OD for Industrial Use

This steel deep groove ball bearing is engineered for high-speed industrial applications, featuring a 2.756-inch bore and a 3.543-inch outside diameter with a compact 0.394-inch width. Constructed from durable steel, it offers exceptional load capacity and resistance to wear in demanding environments. The unit includes dual metal shields to retain lubrication and exclude contaminants, ensuring extended service life with minimal maintenance. Its precision design supports reliable rotational performance across motors, gearboxes, and conveyor systems requiring strict dimensional accuracy.

$59.99In Stock
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Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD 0.94in Length
Industrial|SKU: AA9106
Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD 0.94in Length

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.76-inch bore diameter and a 4.92-inch outside diameter with a compact 0.94-inch width. Constructed from durable hardened steel, it ensures exceptional resistance to wear and deformation under continuous operation. The unit incorporates dual rubber seals on both sides to effectively retain lubrication while excluding contaminants like dust and moisture. Designed for versatility, this bearing supports significant radial loads and moderate axial forces in both directions, making it ideal for motors, gearboxes, and heavy machinery requiring reliable rotational performance.

$79.99In Stock
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Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD for Industrial
Industrial|SKU: AA9107
Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD for Industrial

This steel deep groove ball bearing is engineered for high-speed industrial applications, featuring a 2.76-inch bore diameter and a 4.92-inch outside diameter to ensure precise shaft alignment. With a compact width of 0.94 inches, the unit delivers robust radial load capacity while maintaining a low-friction profile for energy efficiency. The C3 internal clearance specification accommodates thermal expansion during operation, reducing the risk of seizure under heavy loads. Constructed from durable hardened steel with dual metal shields, this component provides reliable protection against contaminants, extending service life in demanding manufacturing environments.

$69.99In Stock
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Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD, Pkg Qty 8
Industrial|SKU: GA8451
Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD, Pkg Qty 8

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.76-inch bore diameter and a 4.92-inch outside diameter to ensure precise shaft alignment. With a compact width of 0.94 inches, the unit delivers optimal radial load capacity while maintaining a low-friction profile for extended operational life. Constructed from durable hardened steel, it withstands demanding rotational speeds and harsh environmental conditions without compromising structural integrity. Sold in packages of eight, these bearings provide a reliable, cost-effective solution for heavy machinery maintenance and assembly requirements.

$99.99In Stock
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Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD, Pkg Qty 8
Industrial|SKU: AY2528
Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD, Pkg Qty 8

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.76-inch bore diameter and a 4.92-inch outside diameter to ensure precise shaft alignment. With a compact width of 0.94 inches, the unit delivers optimal radial load capacity while maintaining a low-friction profile for extended operational life. Constructed from durable hardened steel, it withstands rigorous mechanical stress and varying thermal conditions without compromising structural integrity. Sold in packages of eight, these bearings provide a reliable, cost-effective solution for heavy-duty machinery requiring consistent rotational performance and minimal maintenance intervals.

$99.99In Stock
Get Quote
Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD, Pkg Qty 8
Industrial|SKU: AY2530
Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD, Pkg Qty 8

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.76-inch bore and a 4.92-inch outside diameter to ensure precise shaft alignment. With a compact width of 0.94 inches, the unit offers robust radial load capacity while maintaining a low-profile design suitable for space-constrained assemblies. Constructed from durable hardened steel, it provides exceptional resistance to wear and deformation under continuous operation. Sold in packages of eight, these bearings deliver reliable performance and extended service life for heavy-duty machinery without requiring frequent maintenance intervals.

$109.99In Stock
Get Quote
Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD, Pkg Qty 8
Industrial|SKU: AY2529
Steel Deep Groove Ball Bearing 2.76in Bore 4.92in OD, Pkg Qty 8

This steel deep groove ball bearing delivers reliable rotational support for demanding industrial applications. Featuring a 2.76-inch bore diameter and a 4.92-inch outside diameter, the unit measures 0.94 inches in width to fit standard housing configurations. Constructed from high-grade steel, it ensures exceptional durability and load-bearing capacity under continuous operation. The design minimizes friction while maintaining precise alignment, making it ideal for motors, gearboxes, and conveyor systems requiring consistent performance. Sold in packages of eight, these bearings provide a cost-effective solution for bulk maintenance and assembly requirements.

$109.99In Stock
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Steel Deep Groove Ball Bearing 2.76in Bore 5.91in OD 1.38in Length
Industrial|SKU: AA9309273
Steel Deep Groove Ball Bearing 2.76in Bore 5.91in OD 1.38in Length

This steel deep groove ball bearing is engineered for high-speed industrial applications, featuring a 2.76-inch bore diameter and a 5.91-inch outside diameter. With a compact width of 1.38 inches, it delivers reliable radial load support while minimizing friction in demanding machinery. Constructed from durable hardened steel, the unit ensures extended service life under continuous operation. The C4 internal clearance specification accommodates thermal expansion, making it ideal for environments with elevated operating temperatures where precise shaft alignment and stability are critical.

$79.99In Stock
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Steel Deep Groove Ball Bearing 2.76in Bore 5.91in OD 1.38in Length, Pkg Qty 2
Industrial|SKU: CX9614
Steel Deep Groove Ball Bearing 2.76in Bore 5.91in OD 1.38in Length, Pkg Qty 2

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.76-inch bore diameter and a 5.91-inch outside diameter to ensure precise shaft alignment. With a robust width of 1.38 inches, the unit delivers exceptional radial and axial load capacity while maintaining smooth rotational efficiency under demanding operating conditions. Constructed from durable hardened steel, it offers superior resistance to wear and deformation, extending service life in heavy machinery. Ideal for motors, gearboxes, and conveyor systems requiring reliable performance without frequent maintenance intervals.

$49.99In Stock
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Steel Deep Groove Ball Bearing 2.76in Bore 5.91in OD 1.38in Length, Pkg Qty 5
Industrial|SKU: AY2585
Steel Deep Groove Ball Bearing 2.76in Bore 5.91in OD 1.38in Length, Pkg Qty 5

This steel deep groove ball bearing is engineered for high-load industrial applications, featuring a 2.76-inch bore diameter and a 5.91-inch outside diameter to ensure precise shaft alignment. With a robust width of 1.38 inches, the unit delivers exceptional radial stability and minimizes friction under demanding operational speeds. Constructed from durable hardened steel, it offers superior resistance to wear and deformation in harsh environments. Ideal for heavy machinery and motor assemblies, this component provides reliable performance and extended service life while maintaining strict dimensional tolerances for seamless integration into existing systems.

$109.99In Stock
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Steel Deep Groove Ball Bearing 2.76in Bore 5.91in OD for Industrial Machinery
Industrial|SKU: HC7866
Steel Deep Groove Ball Bearing 2.76in Bore 5.91in OD for Industrial Machinery

This steel deep groove ball bearing is engineered for high-performance industrial machinery, featuring a 2.76-inch bore diameter and a 5.91-inch outside diameter to ensure precise shaft alignment. With a compact width of 1.38 inches, the unit delivers robust radial load capacity while maintaining a low-friction profile for energy-efficient operation. The integrated dual rubber seals provide superior contamination protection against dust and moisture, significantly extending service life in harsh environments. Constructed from high-grade steel, this component offers exceptional durability and thermal stability for continuous heavy-duty applications.

$119.99In Stock
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Frequently Asked Questions

Common questions about Plain Bearings

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