Universal Enduro Bearings 61801 LLU/LLB (ABEC 5) 12 x 21 x 5mm Enduro Bearings

A radial bearing generally used as a hub bearing for some quick-release hub models, pedals and can be used as a pivot bearing, although the MAX type version of this bearing is better suited for suspension use. Its ABEC-5 bearing features deep groove bushings, with grade 10 balls, outward facing double lip and full contact LLU seals to resist daily abuse of use and elements, and inward-facing lighter contact LLB gaskets to contain the 90% filling of high pressure sealed grease. The CN play specification is best for looser press fit bearing bores. The Enduro bearing range is available in high carbon chromium-plated steel, 440C stainless steel, ceramic-hybrid and XD15 with ceramic or stainless steel balls. Our bearings are always designed with the deepest possible channels to accommodate the largest balls and feature double lip seals that roll into a micro-groove creating a complete labyrinth to provide superior protection against the elements.

Main features :

• High precision radial bearing, ideal for quick release hubs, pedals and pivots (except suspension – prefer the MAX version for this).
• ABEC-5 quality for excellent precision, fluidity and durability.
• Deep trunking rings allowing the use of larger diameter balls, increasing load capacity.
• Grade 10 steel balls for smooth rotation and excellent wear resistance.
• Outward-facing full contact and double lip LLU seals for maximum protection against the elements.
• Inward-facing, light contact LLB seals to effectively contain grease while minimizing friction.
• 90% filling of high pressure sealed grease, offering excellent water and dirt resistance.
• CN (Normal Clearance) set suitable for interference fit assemblies, ensuring stability and smooth operation.
• Labyrinth design with micro-grooves ensuring superior sealing and durable protection.

Features :

• Type: Radial ball bearing, accuracy ABEC-5.
• Dimensions: 12 x 21 x 5 mm.
• Internal clearance: CN (normal clearance), suitable for assemblies with a slightly tight fit.
• Rings: Deep trunking made of chromium 52100 steel, to accommodate larger balls.
• Balls: Grade 10, high precision and low shape tolerance.
• LLU (exterior): double lip, full contact, maximum protection against water and contaminants.
• LLB (inner): double lip, light contact, better grease retention with low friction.
• Grease: 90% filling of high-pressure synthetic grease, water and dirt resistant.
• Static load: Approximately 1,043 kN (234 lbf).
• Weight: Approximately 5.9 g.
• Applications: Quick-release hubs, pedals, pivots (prefer MAX version for suspensions).

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