30406-2RS Ball Bearing, 30x40x6mm Thin Wall Bicycle Bearing, ABEC-7 Precision Bearing Steel with Rubber Seals, 4 Pack
Product details
| Management number | 215547255 | Release Date | 2026/04/12 | List Price | $39.58 | Model Number | 215547255 | ||
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Experience precision engineering with these ultra-thin ball bearings designed specifically for bicycle applications. Each bearing in this 4-pack features exact 30x40x6mm dimensions (1.18x1.57x0.24 inches) and is manufactured to ABEC-7 standards for superior smoothness and precision. The bearings are crafted from high-grade bearing steel throughout, including both the races and balls, ensuring exceptional durability and reliable performance. The 2RS rubber seals on both sides provide robust protection against dust, debris, and moisture infiltration, extending the bearing's service life. These thin-wall bearings are ideal for applications where space is at a premium while maintaining optimal rotational performance. The precise dimensional tolerances and smooth operation make these bearings perfect for high-speed applications. Each bearing features a 30mm inner diameter, 40mm outer diameter, and slim 6mm width, offering a perfect fit for compatible bicycle components. The set includes four identical bearings, providing excellent value for maintenance or replacement needs.
- ABEC-7 PRECISION RATING: Engineered to ABEC-7 standard for exceptionally smooth, quiet rotation and high-speed performance in demanding bicycle applications
- DURABLE BEARING STEEL CONSTRUCTION: Manufactured from premium bearing steel with bearing steel balls for reliable performance, extended service life, and consistent operation
- SEALED DESIGN: Features 2RS double rubber seals that effectively protect against dust, dirt, and moisture ingress, maintaining optimal lubrication and bearing integrity
- ULTRA-THIN PROFILE: Compact 6mm width thin wall design makes these bearings ideal for space-constrained bicycle components and lightweight applications
- PRECISE DIMENSIONS: 30mm inner diameter, 40mm outer diameter, and 6mm width ensure perfect compatibility with bicycle headsets, bottom brackets, and wheel hubs; includes 4 bearings per pack
| UPC | 707780756225 |
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| Brand Name | QMOSSUSY |
| Item Weight | 400 Grams |
| Manufacturer | QMOSSUSY |
| Material Type | Metal |
| Bearing Number | 6201 |
| Item Thickness | 0.39 Inches |
| Item Dimensions | 3 x 1.5 x 2.5 inches |
| Outside Diameter | 1.26 Inches |
| Specification Met | CCC, Ce, Ul |
| Included Components | Hardware Bearing |
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