Pillow Block Bearing

3BG Supply is your definitive online industrial marketplace for high-performance pillow block bearings and premium mounted power transmission components. A mounted pillow block bearing (sometimes simply referred to as a pillow block bearing) is designed to provide robust structural support for rotating shafts that run parallel to a mounting surface. Our extensive inventory showcases a variety of options, from a highly reliable cast iron pillow block bearing ideal for general manufacturing to an optimized heavy duty pillow block bearing engineered to survive extreme shock loads and harsh environmental contamination. At 3BG Supply, we carry universally standardized metric and inch configurations, including industry-standard models like the ucp204, ucp205, ucp206, ucp207, and ucp208 series. Partnering with top-tier global manufacturers allows us to guarantee exceptional durability, radial load handling, and extended service life. Explore our full digital catalog today to streamline your conveyor systems, fan drives, or automated factory infrastructure.
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Find the right Pillow Block Bearing for your needs.

  • Brand
  • Category
  • Bore / Inner Diameter Inch
  • Bore / Inner Diameter MM
  • Outside Diameter Inch
  • Outside Diameter MM
  • Width Inch
  • Width MM
  • Height Inch
  • Height MM
  • Seal Type
  • Number of Mounting Holes
  • Bearing Locking Style
  • Bolt Center to Center Inch
  • Bolt Center to Center MM
  • Base to Center Height Inch
  • Base to Center Height MM
  • Split Housing
  • Material
  • Static Load Capacity lbf
  • Static Load Capacity N
  • Rating
  • Relubricatable
  • Rolling Element

    Why Partner With 3BG Supply Co.?

    3BG Supply Co. is a trusted partner to businesses countrywide for numerous reasons.

    We Love What We Do, and It Shows

    3BG Supply Co. traces its roots back to 2010 when our founders discovered an information gap that made MRO sourcing more challenging than it needed to be. Manufacturer equipment data was decentralized, and locating it was often an issue. Armed with a quirky sense of humor, determination and outside-the-box thinking, we changed that.

    Our motto is straightforward — simplify and supply. Living out that vision daily creates exceptional customer experiences and supports your success. When you work with us, you have a dedicated Account Executive to provide personalized attention and advice. And maybe a joke or two.

    We Have 300,000 MRO Supplies and the Expertise to Recommend Them

    We offer over 300,000 different MRO products on our website, saving you time and boosting efficiency as a one-stop solution.

    3BG Supply Co. sells the market-leading brands your equipment relies on. Our manufacturing partners include:

    Don't worry about ordering the wrong pillow block bearing assembly. Our team can provide advice on the right component for your systems. We also have a simple returns and exchanges policy for more peace of mind.

    We Save Your Company Money and Support Agility

    At 3BG Supply Co., we do things differently. All of our products drop ship to your facility from manufacturers' warehouses nationwide. That means fast delivery for you and less overhead expenses for us. We can keep our costs down with no warehouses to run or inventory to manage. And we pass those savings directly on to our customers in the form of lower prices than many of our competitors.

    Our team is highly responsive to our customers' expectations in today's dynamic business environment. We strive to meet them by embracing new technologies and innovations that help you stay resilient and create a competitive edge.

    Shop Pillow Block Bearings From 3BG Supply Co.

    Our website is open for business when you are. Explore our entire pillow block bearing lineup and other MRO supplies 24/7. Need something you don't see or want some product guidance? Our specialists can help!

    Call us at 1-800-609-5205 or connect with an expert online for more information.

    FAQs

    What is a pillow block bearing and how does it function in industrial machinery?

    A pillow block bearing is an integrated mechanical assembly consisting of a surface-mounted housing and an internal bearing insert. The primary function of pillow block bearings is to safely support a rotating shaft that sits parallel to the mounting surface, allowing for smooth, low-friction operation. The housing is securely bolted to a flat foundation, while the inner ring of the bearing insert locks directly onto the shaft using set screws or eccentric locking collars. This layout is standard across conveyor lines, agricultural mixers, and ventilation systems.

    What do designations like ucp204, ucp205, ucp206, ucp207, and ucp208 represent?

    These alphanumeric part numbers represent standardized metric configurations for a standard cast iron pillow block bearing assembly. The 'UCP' prefix specifies a standard-duty pillow block housing paired with a set-screw locking insert bearing. The last two digits denote the shaft bore size code when multiplied by 5 (for shaft diameters 20mm and above). For instance, a ucp204 fits a 20mm shaft, a ucp205 fits a 25mm shaft, a ucp206 fits a 30mm shaft, a ucp207 fits a 35mm shaft, and a ucp208 fits a 40mm shaft. Each incremental size step correlates with increased load ratings and overall dimension footprints.

    When should I choose a heavy duty pillow block bearing over a standard cast iron unit?

    A standard cast iron pillow block bearing is excellent for uniform radial loads, moderate speeds, and typical factory conditions. However, you should upgrade to a heavy duty pillow block bearing when your equipment faces extreme radial or axial forces, high structural vibrations, or severe outdoor environments (such as mining, aggregate sorting, or forestry operations). Heavy-duty variations often utilize robust thick-walled ductile iron or cast steel housings rather than standard gray iron, and feature advanced double-lip or labyrinth sealing systems to completely seal out mud, water, and grinding dust.

    How do I choose the right mounted pillow block bearing for a high-temperature application?

    Sourcing a mounted pillow block bearing for high-temperature environments requires verifying both the lubrication type and the internal clearance of the insert. Standard rubber seals degrade quickly above 180°C, so high-temperature applications require specialized steel shields or slinger seals. Additionally, the bearing must be packed with a high-temperature synthetic grease, and the internal clearance should be expanded (such as a C3 or C4 rating) to accommodate the thermal expansion of the steel balls and rings without seizing. For custom operating environment guidance, contact the technical MRO professionalsat 3BG Supply.

    Industrial Pillow Block Bearing Manufacturers