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SKU: BRG-6203-2RS

6203-2RS Deep Groove Ball Bearing | OEM Replacement Bearing

6203-2RS Deep Groove Ball Bearing (2RS (rubber seals)). OEM replacement bearing for common industrial and general-purpose applications. Submit an RFQ for fast sourcing.

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6203-2RS Deep Groove Ball Bearing – OEM Replacement

Overview

The 6203-2RS is one of the most widely used deep-groove ball bearings in light industrial and consumer equipment. It’s designed for low friction, dependable radial load support, and moderate axial loads in both directions, making it a reliable OEM replacement when you need quick sourcing without changing your machine design.

Applications

Common uses include electric motors, pumps, fans/blowers, small gearboxes, conveyors, lawn and garden equipment, and general rotating assemblies where contamination protection is important. The double rubber seals help keep grease in and dirt out for longer service intervals.

Compatible Machines

You’ll frequently find 6203 bearings in fractional-horsepower motors, HVAC blower motors, small centrifugal pumps, shop tools, and belt-driven machinery. If your equipment runs in dusty or washdown-adjacent areas, the 2RS style is often preferred over open bearings.

Technical Specifications

  • Bore (ID): 17 mm
  • Outside Diameter (OD): 40 mm
  • Width: 12 mm
  • Sealing: 2RS rubber seals (double sealed)
  • Typical material: chrome steel (52100) or equivalent
  • Lubrication: pre-greased for general-purpose duty

Cross References

Cross references commonly include 6203, 6203-2RS, 6203-RS, 6203-ZZ (shielded), and equivalent designations used by major brands. If your existing bearing includes a clearance suffix (e.g., C3), match it for thermal expansion or higher speed use.

Replacement Information

To replace, verify the ID/OD/width on the old bearing or in your parts list. Confirm shaft and housing fits, then choose sealing to match the environment (2RS for contamination control, ZZ for lower drag). For high-heat applications, specify appropriate grease and clearance.

Why Source With Us

We help you source OEM-equivalent bearings fast, with the option to match brand preference, clearance, and sealing. Submit an RFQ with your bearing code and quantity and we’ll respond with availability, lead time, and suitable alternates if you need them.

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Quick FAQ

What does the suffix mean? Common suffixes include ZZ (metal shields) and 2RS (rubber seals). Seals help retain grease and exclude contamination.

How do I confirm fit? Match the bearing designation, bore size, OD, and width. If your old bearing has an extra internal clearance suffix (like C3), keep that specification.

Can I upgrade quality? Yes—use premium grades for higher speeds, higher temperatures, or continuous-duty service.

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FAQ

You can identify a replacement industrial part by matching key specifications such as dimensions, mounting style, material, load capacity, voltage, speed rating, and application. Many industrial components can be sourced by size and performance specifications even if the original part number is unknown. Providing measurements, photos, or equipment model information can help ensure accurate identification and compatibility.

Yes. Many industrial components — including bearings, seals, belts, motors, and fasteners — can be identified using inside diameter, outside diameter, width, thread size, or mounting pattern. Matching exact dimensions is one of the most reliable methods for finding equivalent or replacement parts when a part number is missing or unreadable.

Machine model numbers can often be used to locate OEM parts diagrams, exploded views, and manufacturer replacement lists. These references help identify compatible components originally installed in the equipment. Matching parts by machine model ensures correct fit, performance, and operational reliability.

OEM part numbers can be cross referenced using manufacturer interchange guides, engineering specifications, or industrial databases. Matching dimensions, tolerances, materials, and performance ratings ensures the alternative component functions the same as the original.

To confirm interchangeability, compare critical specifications such as dimensions, mounting configuration, operating capacity, material composition, and tolerance class. If these parameters match, the components are typically interchangeable across manufacturers.

Installing an incompatible part can lead to premature wear, mechanical failure, reduced efficiency, overheating, vibration, or equipment damage. Always verify specifications and compatibility before installation to maintain performance and safety.

Metric and imperial components may appear similar but often differ slightly in size and tolerance. Even small measurement differences can affect fit and performance. Always verify exact measurements before substituting between measurement systems.

 

Tolerance ratings define the allowable variation in size, alignment, or performance. Tight tolerances improve precision, reduce vibration, and extend equipment lifespan.