Yokomo BB-74-2A 4x7x2.5mm Ball Bearings - 2 Pack  [BB-74-2A]

Yokomo BB-74-2A 4x7x2.5mm Ball Bearing (2 pcs.)
Price:
CAD$8.51
Brand:
Yokomo
Model:
BB-74-2A
GTIN:
0639342205141
Condition:
Brand New
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Smoother Running with Yokomo BB-74-2A

If you want dependable rolling performance, the Yokomo BB-74-2A ball bearings are a straightforward choice. These 4x7x2.5mm metal bearings fit a variety of Yokomo chassis and deliver the precision needed for stable drivetrain operation.

Chassis Fitment and Typical Uses

The Yokomo BB-74-2A works with several chassis types including MRTC-BD919 and MRTC-BD10 series, making them useful for both track setups and weekend trail runs. Use them when refreshing worn parts or improving rotational smoothness.

Fitting Advice and Routine Care

Clean all mating surfaces before pressing bearings into place and avoid contaminating bearings with grit. Periodic inspections and light lubrication will help reduce wear and preserve performance over time.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Can these bearings handle exposure to dirt and dust

These are metal ball bearings that perform best when kept clean. If you expect dusty conditions, clean and relube them frequently or consider seals and protective measures on the car.

What do the 4x7x2.5mm dimensions mean for fitment

The dimensions indicate inner diameter 4mm, outer diameter 7mm and width 2.5mm. Verify those measurements match your shafts and hubs before installing.

How can I tell when a bearing needs replacing

Listen for roughness, feel for play on the shaft, and check for visible corrosion. Any grinding, wobble or heavy resistance is a sign to swap the bearing.

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