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R8 Deep Groove Ball Bearing - 1/2" x 1-1/8" x 5/16" (Inch Series R-Type) Industrial Replacement

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Product Category: Deep Groove Ball Bearing

Product Details

R8 Deep Groove Ball Bearing - 1/2" x 1-1/8" x 5/16" (Inch Series R-Type) Industrial Replacement

The R8 Deep Groove Ball Bearing is an industry-standard component engineered for robust performance in light to medium industrial applications, primarily serving fractional horsepower motors, instrumentation, and precision machinery. Featuring a standardized inch series bore (0.5000 in) and external dimensions, this bearing ensures direct interchangeability with OEM specifications. Constructed from high-carbon 52100 chrome steel, the R8 offers excellent hardness and wear resistance, suitable for operations requiring low friction and moderate radial and axial load capacity. Its precision ground raceways and optimized internal geometry facilitate smooth rotation and quiet operation across a wide range of operating speeds, ensuring long service life even under continuous duty cycles. As part of our SIN MARCA value line, this R8 bearing provides exceptional cost-efficiency without compromising critical industrial quality standards (P0/ABEC-1). It is the ideal choice for Maintenance, Repair, and Operations (MRO) teams seeking reliable, high-volume replacement parts that meet stringent dimensional and load rating requirements. We prioritize consistency in manufacturing tolerances, making this bearing a dependable choice for general machinery, conveying equipment, and common power tool assemblies where performance must be balanced with optimized inventory costs. Specify the R8 for proven durability and immediate application readiness.

Key Features

  • Standardized Inch Dimensions: Direct dimensional interchangeability with all major R8 brands.
  • 52100 Chrome Steel Construction: Ensures high durability and resistance to operational fatigue.
  • Versatile Load Handling: Efficiently manages moderate radial and light axial loads.
  • P0/ABEC-1 Industrial Precision: Suitable for standard speed industrial equipment and MRO applications.
  • Cost-Optimized (SIN MARCA): Exceptional value proposition for bulk procurement and frequent replacement cycles.

Technical Specifications

d1/2 in (0.5000 in / 12.700 mm)
D1 1/8 in (1.1250 in / 28.575 mm)
B5/16 in (0.3125 in / 7.938 mm)
Bearing TypeSingle Row Deep Groove Ball Bearing
SeriesR Series (Inch)
Material52100 High Carbon Chrome Steel
Cage MaterialPressed Steel (Standard)
Precision ClassABEC-1 (P0)
Dynamic Load Rating (Cr)2.57 kN (Approx.)
Static Load Rating (C0r)1.24 kN (Approx.)
Limiting Speed (Grease)18,000 RPM (Typical)