Black Bearing 61903 2rs (17x30x7mm) max bearing

The BlackBearing MAX range of bearings was specially developed for frame joints. They are adapted to oscillating movements such as on MTB frame pivots (linkage bearings, horizontal chainstay bearings, vertical chainstays, etc.) and have more balls than conventional bearings to support higher loads. The mechanical resistance is 30 to 40 per cent higher than standard, allowing a longer life despite the high stresses placed on this type of bearing.

Features

• Steel balls
• Steel cage
• Quality grease, in larger quantities than standard
• Low-friction 2RS seals: waterproof and dustproof
• Internal diameter: 17 mm
• Outer diameter: 30 mm
• Thickness: 7 mm