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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 Thrust Ball Bearing 0.98in Bore 1.85in OD for Machinery, Pkg Qty 6
Industrial|SKU: JQ9550
Steel Thrust Ball Bearing 0.98in Bore 1.85in OD for Machinery, Pkg Qty 6

Engineered for high-load axial applications, this steel thrust ball bearing delivers reliable performance in demanding machinery environments. Featuring a precise 0.98-inch bore and 1.85-inch outside diameter, the unit accommodates substantial thrust loads while maintaining a compact 0.59-inch profile. Constructed from durable hardened steel, it ensures extended service life and resistance to wear under continuous operation. Ideal for industrial equipment requiring robust rotational support, this component is supplied in packaging quantities of six to streamline inventory management and maintenance scheduling for facility operators.

$99.99In Stock
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Steel Thrust Ball Bearing 1.18in Bore 1.85in OD for Machinery, Pkg Qty 8
Industrial|SKU: JQ9527
Steel Thrust Ball Bearing 1.18in Bore 1.85in OD for Machinery, Pkg Qty 8

This steel thrust ball bearing is engineered for high-load axial applications in industrial machinery, featuring a 1.18-inch bore and a 1.85-inch outside diameter. Constructed from durable hardened steel, the unit measures 0.43 inches in width to ensure a compact fit within tight assembly constraints. Designed for reliable performance under significant pressure, it facilitates smooth rotational movement while effectively managing unidirectional thrust forces. Supplied in packaging quantities of eight, these bearings provide a cost-effective solution for maintaining operational efficiency in heavy-duty mechanical systems requiring precise axial support.

$89.99In Stock
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Steel Thrust Ball Bearing 1.18 in Bore 2.05 in OD for Industrial, Pkg Qty 2
Industrial|SKU: JQ9551
Steel Thrust Ball Bearing 1.18 in Bore 2.05 in OD for Industrial, Pkg Qty 2

This steel thrust ball bearing is engineered for high-load industrial applications requiring precise axial support. Featuring a 1.18-inch bore diameter and a 2.05-inch outside diameter, the unit measures 0.63 inches in length to fit compact assembly envelopes. Constructed from durable hardened steel, it delivers exceptional wear resistance and operational stability under demanding conditions. Designed as a unidirectional component, it efficiently manages axial forces in one direction while minimizing friction. Supplied in packages of two, this bearing ensures reliable performance for machinery requiring robust rotational integrity and long service life.

$49.99In Stock
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Steel Thrust Ball Bearing 1.18in Bore 2.05in OD for Industrial, Pkg Qty 2
Industrial|SKU: NT8061
Steel Thrust Ball Bearing 1.18in Bore 2.05in OD for Industrial, Pkg Qty 2

This steel thrust ball bearing is engineered for high-load industrial applications requiring precise axial support. Featuring a 1.18-inch bore diameter and a 2.05-inch outside diameter, the unit measures 0.63 inches in total length to fit compact assemblies. Constructed from durable hardened steel, it delivers exceptional wear resistance and operational longevity under demanding conditions. Designed specifically for unidirectional thrust loads, this component ensures reliable performance in machinery where space constraints and load capacity are critical factors. Sold in packages of two for efficient inventory management.

$89.99In Stock
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Steel Thrust Ball Bearing 1.38in Bore 2.05in OD for Industrial, Pkg Qty 2
Industrial|SKU: CN9867
Steel Thrust Ball Bearing 1.38in Bore 2.05in OD for Industrial, Pkg Qty 2

This steel thrust ball bearing is engineered for high-load industrial applications requiring precise axial support. Featuring a 1.38-inch bore diameter and a 2.05-inch outside diameter, the unit ensures accurate shaft alignment within tight mechanical assemblies. Its compact 0.47-inch width allows for integration into space-constrained machinery without compromising structural integrity. Constructed from durable hardened steel, this component delivers reliable performance under demanding operational conditions, making it an essential replacement part for maintaining equipment efficiency and minimizing unplanned downtime in heavy-duty environments.

$69.99In Stock
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Steel Thrust Ball Bearing 1.38in Bore 2.44in OD for Industrial, Pkg Qty 5
Industrial|SKU: JQ9552
Steel Thrust Ball Bearing 1.38in Bore 2.44in OD for Industrial, Pkg Qty 5

Engineered for high-load industrial applications, this steel thrust ball bearing supports substantial axial forces while maintaining rotational stability. The unit features a precise 1.38-inch bore diameter and a 2.44-inch outside diameter, with a compact overall length of 0.71 inches to fit space-constrained assemblies. Constructed from durable hardened steel, it ensures long-term reliability under demanding operating conditions. Supplied in packages of five, these bearings provide a cost-effective solution for machinery requiring robust unidirectional thrust support without the complexity of roller configurations.

$99.99In Stock
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Steel Thrust Ball Bearing 1.77in Bore 2.56in OD 0.55in Length, Pkg Qty 25
Industrial|SKU: GC0043
Steel Thrust Ball Bearing 1.77in Bore 2.56in OD 0.55in Length, Pkg Qty 25

Engineered for high-load axial applications, this steel thrust ball bearing delivers reliable unidirectional support in demanding industrial machinery. Constructed from durable hardened steel, the unit features a 1.77-inch bore diameter, a 2.56-inch outside diameter, and a compact 0.55-inch length to fit tight assembly envelopes. Its robust design ensures stable performance under significant thrust loads while maintaining precise shaft alignment. Supplied in economical packaging quantities of 25 units, these bearings provide a cost-effective solution for maintenance teams requiring consistent replacement parts for heavy-duty equipment operations.

$99.99In Stock
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Steel Thrust Ball Bearing 1.97 in Bore 3.07 in OD for Industrial Use
Industrial|SKU: CH0252
Steel Thrust Ball Bearing 1.97 in Bore 3.07 in OD for Industrial Use

This steel thrust ball bearing is engineered for high-load industrial applications requiring precise axial support. Featuring a 1.97-inch bore and a 3.07-inch outside diameter, the unit measures 0.87 inches in total length to fit compact assemblies. Constructed from hardened steel, it delivers exceptional durability and resistance to deformation under heavy static loads. The design ensures smooth rotational movement while effectively managing unidirectional thrust forces, making it ideal for machinery operating in demanding environments where reliability and dimensional stability are critical.

$99.99In Stock
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Steel Thrust Ball Bearing 3.94 in Bore 5.31 in OD for Industrial Machinery
Industrial|SKU: JQ9540
Steel Thrust Ball Bearing 3.94 in Bore 5.31 in OD for Industrial Machinery

Engineered for heavy-duty industrial machinery, this steel thrust ball bearing delivers reliable unidirectional load support in high-pressure environments. Featuring a precise 3.94-inch bore and 5.31-inch outside diameter, the unit ensures seamless integration into existing shaft assemblies while maintaining strict alignment tolerances. Constructed from hardened steel, it offers exceptional durability and resistance to wear under continuous operation. With a compact axial length of 0.98 inches, this component maximizes space efficiency without compromising structural integrity, making it an ideal solution for demanding applications requiring robust rotational stability and long service life.

$79.99In Stock
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Steel Unidirectional Thrust Ball Bearing 0.59 in Bore 1.10 in OD, Pkg Qty 2
Industrial|SKU: CJ7013
Steel Unidirectional Thrust Ball Bearing 0.59 in Bore 1.10 in OD, Pkg Qty 2

This steel unidirectional thrust ball bearing is engineered to support high axial loads in one direction while maintaining compact assembly dimensions. Featuring a 0.59-inch bore diameter and a 1.10-inch outside diameter, the unit measures 0.35 inches in total length, making it ideal for space-constrained industrial applications. Constructed from durable hardened steel, it ensures reliable performance under demanding operating conditions. Designed for precision alignment in vertical shaft arrangements, this component delivers consistent rotational stability and extended service life for heavy-duty machinery without requiring complex maintenance protocols.

$59.99In Stock
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Steel Unidirectional Thrust Ball Bearing 1.57in Bore 2.36in OD, Pkg Qty 2
Industrial|SKU: FP4656
Steel Unidirectional Thrust Ball Bearing 1.57in Bore 2.36in OD, Pkg Qty 2

This steel unidirectional thrust ball bearing is engineered to support high axial loads in one direction while maintaining precise shaft alignment. Featuring a 1.57-inch bore diameter and a 2.36-inch outside diameter, the unit fits standard industrial mounting configurations with a compact 0.51-inch overall length. Constructed from durable hardened steel, it ensures reliable performance under demanding operational conditions. Ideal for applications requiring rigid axial positioning, this component delivers consistent load-carrying capacity and extended service life within heavy-duty machinery assemblies.

$79.99In Stock
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Steel Unidirectional Thrust Ball Bearing 1.57in Bore 2.68in OD for Industrial Use
Industrial|SKU: KK0001
Steel Unidirectional Thrust Ball Bearing 1.57in Bore 2.68in OD for Industrial Use

Engineered for demanding industrial applications, this steel unidirectional thrust ball bearing delivers reliable axial load support in a single direction. Constructed from high-grade steel, the unit features a 1.57-inch bore diameter and a 2.68-inch outside diameter to ensure precise shaft alignment. With a compact overall length of 0.75 inches, it fits efficiently into space-constrained machinery assemblies while maintaining structural integrity under heavy operational stress. This component provides essential durability for equipment requiring consistent performance in high-load environments without the complexity of bidirectional designs.

$79.99In Stock
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Steel Unidirectional Thrust Ball Bearing 2.36in Bore 0.67in Length
Industrial|SKU: MM3240
Steel Unidirectional Thrust Ball Bearing 2.36in Bore 0.67in Length

This steel unidirectional thrust ball bearing is engineered to support high axial loads in one direction while maintaining rotational stability. Featuring a 2.36-inch bore and a 3.35-inch outside diameter, the unit fits standard industrial shaft configurations with a compact 0.67-inch overall length. Constructed from hardened steel, it offers superior wear resistance and durability under demanding operating conditions. Ideal for vertical pump applications, machine tool spindles, and heavy-duty gearboxes, this component ensures reliable performance where precise axial positioning and load capacity are critical requirements.

$79.99In Stock
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TC Skeleton Oil Seal, Nitrile Rubber Construction, Oil and Wear Resistant, Pkg Qty 50
Industrial|SKU: 10076960595891
TC Skeleton Oil Seal, Nitrile Rubber Construction, Oil and Wear Resistant, Pkg Qty 50

This nitrile rubber skeleton oil seal is designed to deliver excellent wear and oil resistance, making it ideal for high-performance sealing in industrial machinery and automotive systems. Available in a convenient pack of 50, it provides a cost-effective solution for bulk usage in maintenance, repairs, and production lines. The seal's nitrile rubber construction ensures durability and long-lasting performance, even in harsh operating conditions where oil and wear resistance are critical. This oil seal is well-suited for use in machinery that requires reliable sealing to prevent leakage and improve operational efficiency in various industrial environments. 

$9.99In Stock
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WB2 series mechanical seal model WB2 30 silicon carbide PTFE stainless steel shaft sleeve outer diameter one point one eight inch
Industrial|SKU: JS459530
WB2 series mechanical seal model WB2 30 silicon carbide PTFE stainless steel shaft sleeve outer diameter one point one eight inch

Multi-Material Construction: Silicon carbide, silicon carbide, PTFE, and 304 stainless steel provide exceptional resistance to strong acids, oxidants, and corrosive media. Precision Sizing: 30mm (1.18in) shaft/sleeve outer diameter ensures accurate fit in compatible equipment. External Single-Face Design with Multi-Spring: PTFE bellows structure, internally balanced, non-pusher seal with good floatability and reliable sealing. Temperature Range: Operates within 0~120°C, suitable for moderate thermal environments. Pressure Endurance: Handles up to 0.80MPa, ensuring sealing integrity in relevant applications. Comprehensive Set: Includes all necessary components for a complete seal replacement.

$79.99In Stock
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White PTFE packing square section zero point three nine inch by zero point three nine inch net weight fourteen point three three pound length one hundred thirty one foot
Industrial|SKU: JS459556
White PTFE packing square section zero point three nine inch by zero point three nine inch net weight fourteen point three three pound length one hundred thirty one foot

PTFE Material: Offers excellent chemical resistance, low friction, and suitability for various industrial media. Precision Sizing: Square section 0.39in×0.39in (10×10mm) ensures accurate fit in compatible sealing applications. Long Length: 40 meters (131.23ft) per case, providing ample material for multiple sealing tasks. Net Weight: 6.5kg (14.33lb) per case, indicating substantial quantity and durability. White Color: Allows for easy identification and inspection in various industrial settings. Versatile Application: Ideal for thermal power plants, chemical, metallurgical, steel, and coal mining industries, suitable for equipment requiring reliable sealing with PTFE compatibility.

$209.99In Stock
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Zirconia Ceramic Deep Groove Ball Bearing 1.18in Bore 2.44in OD Sealed
Industrial|SKU: AE1786049
Zirconia Ceramic Deep Groove Ball Bearing 1.18in Bore 2.44in OD Sealed

Engineered for extreme environments, this zirconia ceramic deep groove ball bearing delivers superior corrosion resistance and electrical insulation. The sealed 2RS design ensures reliable operation in contaminated settings while retaining lubrication across a wide temperature range. Featuring a 1.18-inch bore, 2.44-inch outside diameter, and 0.63-inch width, the non-magnetic construction supports high-speed applications where steel bearings fail. Its lightweight yet durable composition reduces rotational mass, enhancing efficiency in demanding industrial machinery without compromising structural integrity or load capacity.

$69.99In Stock
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Zirconia Ceramic Deep Groove Ball Bearing 1.575in Bore Sealed for Industrial Use
Industrial|SKU: AE1786055
Zirconia Ceramic Deep Groove Ball Bearing 1.575in Bore Sealed for Industrial Use

Engineered for demanding industrial environments, this zirconia ceramic deep groove ball bearing delivers superior corrosion resistance and non-conductive performance. The unit features a 1.575-inch bore, 3.150-inch outside diameter, and 0.709-inch width, ensuring precise fitment in standard housing configurations. Its full-ceramic construction eliminates lubrication requirements while withstanding extreme temperatures and harsh chemical exposure. Equipped with dual rubber seals, the bearing effectively retains internal integrity against contaminants, providing reliable operation in applications where metallic components fail due to electrical arcing or aggressive media.

$139.99In Stock
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Frequently Asked Questions

Common questions about Plain Bearings

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Oil Seals & Rotary Shaft Seals for Pumps, Motors & Gearboxes | Machrio