Mounted Bearings

Mounted bearings combine a bearing element with its own housing, so MRO teams can bolt a complete unit directly to a frame or structure instead of machining a separate bore. This category covers pillow block bearings and flange bearings as well as hanger unit bearings, and it relies on insert bearings — self-aligning units with a spherical outer ring — to compensate for minor shaft misalignment. Within mounted bearings, 3BG Supply Co. also stocks specialized configurations like the cartridge unit bearing and take-up unit, both built around the same mounted ball bearing principles as pillow block and flange-mount designs. Whether you need mounted ball bearings for a conveyor system or mounted linear bearings for guided motion, matching bore size, housing style, and locking mechanism to your shaft is the key to a reliable installation. Browse our mounted bearings to find the right housing and insert combination for your application.

Find the right Mounted Bearings for your needs.

  • Brand
  • Category
  • Bore / Inner Diameter Inch
  • Bore / Inner Diameter MM
  • Outside Diameter Inch
  • Outside Diameter MM
  • Frame
  • Width Inch
  • Width MM
  • Length Inch
  • Length 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
  • Limiting Speed RPM
  • Split Housing
  • Material
  • Snap Ring
  • Static Load Capacity lbf

     

    Advantages of Choosing 3BG Supply Co. for Mounted Bearings

    Our product inventory features hundreds of thousands of parts, including a vast selection of mounted bearings. We stand out from other maintenance, repair and operations (MRO) suppliers by offering exceptional customer service backed by some of the industry's top technical knowledge.

    One of our primary goals is to make each customer feel like they're part of our extended family. We pride ourselves on providing honest and transparent communication with each transaction, and we're committed to giving you individualized attention and a seamless buying experience. After you place your initial order, we'll assign you a 3BG account representative to streamline future ordering.

    Shop Mounted Bearings at 3BG Supply Co. Today

    At 3BG Supply Co., we're proud to offer one of the market's most extensive online selections of industrial bearings, including many mounted bearings from the market's top brands. Browse our comprehensive product listing and order your product today for the fastest shipping times. To request a custom quote or additional product information, call us or connect with our experts online.

    FAQs

    What is the difference between a pillow block bearing and a flange bearing?

    A pillow block bearing mounts to a flat surface parallel to the shaft, typically supporting the shaft from below, while a flange bearing mounts to a vertical or perpendicular surface using a bolt pattern around the bearing bore. Both use the same style of insert bearing internally; the housing shape is what differs based on the mounting surface available.

    What are hanger unit bearings used for?

    Hanger unit bearings suspend a rotating shaft from an overhead structure, most commonly in screw conveyors and enclosed conveyor troughs. They come in single-piece and split-housing designs, with split housings allowing disassembly for maintenance without removing the shaft.

    How does an insert bearing compensate for shaft misalignment?

    An insert bearing has a spherical, crowned outer ring that seats inside a matching concave housing bore, letting the bearing pivot slightly to accommodate minor angular misalignment between the shaft and housing. This self-aligning feature reduces internal stress and premature wear compared to a rigid, non-aligning bearing.

    What locking mechanisms are used on mounted ball bearings?

    The three most common locking styles are set screws, eccentric locking collars, and concentric adapter sleeves. Set screws work well for reversing applications, eccentric collars suit unidirectional heavy-duty drives, and adapter sleeves provide uniform clamping for high-speed or high-vibration equipment.

    Can mounted bearings be used for linear as well as rotary motion?

    Yes — mounted linear bearings apply the same bolt-on housing concept to linear motion, supporting a linear shaft or rail rather than a rotating one. They're common in guided slide and actuator assemblies where a self-contained, easily replaceable unit is preferred over a machined linear bearing bore.

    How do I choose the right mounted bearing housing?

    Start with your shaft diameter and mounting orientation — a horizontal surface for pillow blocks, a vertical or angled surface for flange units — then factor in expected load, speed, and environmental exposure to select housing material and seal type. Our team can help match a specific insert, housing, and locking style to your application.

    Industrial Mounted Bearings Manufacturers