Four-Bolt Flange Ball Bearing Unit
This flange-mounted ball bearing unit features a square four-bolt flange housing with pre-lubricated insert ball bearings, ideal for high-speed shaft support in pumps and fans. The self-aligning design compensates for minor shaft misalignment. It qualifies under HTS 8483.20.4040 for flange units incorporating ball bearings.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for take-up or cartridge units with roller bearings
Heading specifies ball vs roller and unit type (flange vs take-up); roller versions shift to 8483.20.60.
If plain shaft bearings without rolling elements
Plain (non-rolling) housed bearings go to 8482; presence of ball bearings dictates 8483 classification.
If designed for measuring semiconductor wafer flatness
Precision testing apparatus for semiconductor processing per statistical notes moves to Chapter 90.
Not sure which classification is right?
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Import Tips & Compliance
• Label units with bore diameter, speed rating, and load capacity; Customs often requests this for verifying 'housed bearing' status
• Avoid common pitfall of classifying as 'parts of machines' (8479); prove it's a complete housed unit with assembly photos
• For food-grade applications, ensure FDA-compliant grease and provide material safety data sheets (MSDS)
Related Products under HTS 8483.20.40.40
Pillow Block Ball Bearing Housing Unit
A pillow block unit consists of a mounted ball bearing housed in a cast iron or steel housing with a pillow-shaped base for easy bolting to machinery frames. It incorporates sealed deep groove ball bearings for smooth rotation and is designed for supporting shafts in conveyor systems and agricultural equipment. Classified under HTS 8483.20.4040 as a housed bearing unit incorporating ball bearings, specifically a flange or take-up type.
Take-Up Ball Bearing Housing Unit
Take-up units with ball bearings allow for shaft adjustment in conveyor belt tensioning systems, featuring cast iron housings and corrosion-resistant inserts. They incorporate angular contact ball bearings for axial load handling. Falls under HTS 8483.20.4040 as take-up housed bearings with ball elements.
Hanger Ball Bearing Unit
Ceiling or wall-mounted hanger ball bearing units support horizontal shafts in overhead conveyor systems, with lightweight aluminum or steel housings and solid lube ball bearings. Designed for low-vibration operation. HTS 8483.20.4040 covers hanger units incorporating ball bearings.
Heavy-Duty Cast Iron Ball Bearing Cartridge
Heavy-duty cartridge ball bearing units in cast iron housings withstand shock loads in crushers and ball mills, with triple-lip labyrinth seals and tapered roller-ball hybrid inserts. Specifically for 8483.20.4040 cartridge units with ball bearings.
Cartridge Ball Bearing Insert Unit
Cartridge-style ball bearing units are sealed inserts that fit into larger housings, used in mining equipment and heavy machinery for easy replacement. They feature double-lip seals and eccentric locking collars. Classified in HTS 8483.20.4040 for cartridge housed ball bearing units.
Adjustable Flange Ball Bearing Take-Up
Combination flange take-up ball bearing units offer both mounting flexibility and tension adjustment for conveyor and elevator shafts. Equipped with high-capacity ball bearing inserts and stainless steel baffles. Meets HTS 8483.20.4040 for multi-function housed ball bearing units.