3RACING 3RB-MR104-2RS-2 Double Rubber Seal Bearings 4x10x4mm (2 pcs)  [3RB-MR104-2RS-2]

3RACING Double Rubber Seals Bearing 4 x 10 x 4 mm ( 2 pcs) - 3RB-MR104-2RS-2
Price:
USD$1.60
Brand:
3Racing
Model:
3RB-MR104-2RS-2
Condition:
Brand New
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Race-Minded Sealed Bearings

The 3RACING Double Rubber Seals Bearing 4x10x4 mm is intended for hobby racers seeking simple, sealed components that reduce contamination variables. Sold as a two piece set, these bearings suit precise small-scale applications where reliable spin is part of setup consistency.

Sealing and Service Considerations

Dual rubber seals limit ingress of dust and fine debris, reducing maintenance variance between runs. For competitive use inspect seals routinely and replace bearings when any degradation affects lap-to-lap performance.

Application and Fitment Notes

These 4x10x4 mm bearings are appropriate for wheel hubs, small gearbox outputs, and other tight assemblies common in race-spec models. Confirm bore and journal dimensions before installation and use proper drivers to avoid race damage.

Verify hub bore concentricity and axle diameter, clean mating surfaces, and use an appropriate sized driver to press bearings squarely into place to avoid false loading.
Seals add protection at the cost of slight drag. For reduced resistance choose lighter lubricants or match to a bearing spec with minimal seal friction while balancing durability needs.
Assess radial and axial loads in the assembly and select bearings with appropriate internal construction and clearances; for heavier loads consider larger or higher duty bearings.