Yokomo Pure Evolution BB-1140P SPEC Racing Motor Bearing (4x11x4mm)  [BB-1140P]

Yokomo BB-1140P Pure Evolution SPEC Racing Motor Bearing (4x11x4mm)
Price:
AUD$6.23
Brand:
Yokomo
Model:
BB-1140P
GTIN:
11
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Upgrade bearing for R/C motors (4x11x4mm)

Designed as a 4x11x4mm metal racing bearing for electric R/C motors, the BB-1140P from Yokomo's Pure Evolution line functions as a replacement-sized component for motors built to that form factor. It reduces rotational resistance and supports the shaft during high-RPM operation to help maintain consistent performance.

Installation notes: verify inner and outer measurements match your motor bore and shaft before removing the old bearing. Press the BB-1140P in evenly and keep the bearing coaxial with the shaft and endbell to prevent shaft damage or misalignment. After refitting, ensure the rotor turns smoothly and without lateral movement.

Tuning and maintenance: this part serves as a low-friction support that can influence motor heat and bearing lifespan. Inspect for noise, roughness, or looseness and replace bearings showing signs of wear. Protect bearings from contaminants and moisture to preserve performance.
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.

Will changing to this bearing affect motor temperature?

A low-friction bearing like the BB-1140P can reduce mechanical losses and slightly lower motor temperatures under the same load, but overall motor cooling and gearing also play major roles.

Do I need a press or special tools to fit it?

A bearing press or a carefully sized driver and bench vice work best to seat the bearing squarely. Avoid hammering directly on the bearing inner race to prevent damage.

Any tips to reduce bearing wear?

Keep the motor and endbell clean, avoid entering dusty lines on the track, and use light, appropriate lubrication when recommended. Inspect and replace bearings at the first sign of rough operation.

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