Blackbearing B5 R2-2RS Bearing 3.18x9.53x3.97 mm

B5 Chrome Steel Bearing with Reinforced Seals

Polished Raceways
Reinforced Double Seals
Metal Bearing Cage

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The BlackBearing B5 R2-2RS Bearing is a replacement cartridge bearing designed for bicycle components requiring the corresponding bearing standard. Part of BlackBearing's B5 series, it provides a durable replacement for worn, damaged or rough-running bearings without changing the complete component.

Smooth Rotation. The bearing features polished raceways and precision chrome steel balls to support consistent rotation. Its reinforced seals help protect the internal components against dust, moisture and contamination, while the internal grease provides lubrication during regular use.

Compatibility. Before purchasing, confirm that the R2-2RS designation and dimensions match the original bearing. Correct installation is essential to maintain smooth operation and prevent damage to the bearing or surrounding housing.

Specifications

Product Number	UB-R2-B5
Product Type	Cartridge Bearing
Material	Chrome Steel
Bearing Ball Grade	ABEC 5
Seal Type	Reinforced 2RS Double-Sided

Lubrication	Premium-Quality Bearing Grease
Dimensions	3.18×9.53×3.97mm
Inner Diameter (ID)	3.18mm
Outer Diameter (OD)	9.53mm
Bearing Width	3.97mm

Features

Polished Raceways: Help reduce friction and maintain smooth bearing rotation.
Reinforced Double Seals: Improve protection against water, dust and external contamination.
Metal Bearing Cage: Maintains consistent spacing between the rolling elements.
High Grease Fill: Provides lubrication and supports bearing protection during regular use.
Individual Replacement: Allows worn bearings to be replaced without changing the complete component.

Warranty and support

Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.

Questions after delivery? Ask TBA Guide or WhatsApp us.

Shipping and returns

We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy

Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy