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Bicycle Loose Ball Bearings

Learn About Blueseal Bike Bearings™
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Product details

Steel 51200 Highest Quality Ball Bearings - Grade 10

Hardened ball bearings. These are high-quality ball bearings made from chromium AISI 52100 steel. Manufactured to grade 10 specification. The lower the grade the more round and smooth the bearing. Most standard bearings are Grade 1000. These bearings are hard-wearing and designed for use in applications where long life is needed.

Stainless Steel 404 Highest Quality Ball Bearings - Grade 10

Hardened ball bearings. These are high-quality ball bearings made from stainless steel 404. Manufactured to Grade 10 specification. These bearings are hard-wearing and designed to provide extra resistance to corrosion to that of 51200 steel. Great for use in applications where extra resistance to corrosion is required such as bottom brackets and headsets.

Ceramic Si3N4 Highest Quality Ball Bearings - Grade 5

The toughest and smoothest bicycle ball bearing available. Made to Grade 5 specification, these ceramic bearings provide the greatest reduction in drag resistance and provide excellent strength. Ideal for applications where minimal drag and high corrosion resistance are required.



The perfect replacement for many FSA headsets, Shimano cup and cone hubs, pedals and any application that uses loose bearings.



Ball Bearings Sizes

Imperial/Decimal/Metric

3/32" / 0.938 = 2.38mm

1/8 " / 0.125 = 3.17mm

5/32" / 0.156 = 3.96mm

3/16" / 0.187 = 4.76mm

7/32" / 0.218 = 5.55mm

1/4 " / 0.250 = 6.35mm

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Bicycle Loose Ball Bearings


See Other Blueseal Bike Bearings


Learn About Blueseal Bike Bearings™

Close Contact 2RS LLB Seals

Blueseal Bike Bearings™ have top-quality LLB 2RS close-contact rubber seals. The tighter the seal is to the inner bearing race the harder for water and dirt to get in and the grease to get out!

Max. Fill Premium Grease

Standard bearings contain a small amount of basic bearing grease (Approx. 20%) which offers little protection towards corrosion and rain and dirt ingress.

Blueseal Bike Bearings™ contain the maximum fill of Mobil waterproof grease possible without compromising the function of the close-contact rubber seals.

Stumpjumper Headset Bearings - Specialized - Trailvision - Bicycle Bearing Suppliers

ABEC 3 as Standard

Most non-bike specific bearings are ABEC 1 as standard. Blueseal Bike Bearings™ are all ABEC 3 Rated, this higher class of bearing runs smoother & last longer. 

Designed For Bicycles

Specially engineered bicycle bearings. Designed for maximum efficiency, they outperform standard bearings.

  • Trusted for 15+ Years with 100,000+ Bearings Sold

Trailvision is an independent family business with over 15 years of hands-on experience in the bike-bearing industry. Using our expertise we develop and stock only the best products specifically suited for bicycles.

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Customer Reviews

Based on 3 reviews
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J
John B
Wheel bearings & North Tech brake pads

Wheel bearings have made my wheels feel like new, only had a short ride but seem fab. Brake pads to replace Shimano pads, also feel good! Certainly be using Trailvision in the future 👍🏼

L
Luke Butcher
Perfect!

Amazing delivery speed, excellent service, superb product. Thank you!

A
Alan Winter
A Big Thank You

Quality Bearings, Competitively Priced and Excellent Customer Service. I wouldn’t go anywhere else for any replacement bearings for my bicycle repair business.

Thanks Tom at Trailvision.

Alan