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

Yokomo BB-1140P Pure Evolution SPEC Racing Motor Bearing (4x11x4mm)
Price:
£3.23
Brand:
Yokomo
Model:
BB-1140P
GTIN:
11
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Replacement bearing 4x11x4mm for electric R/C motors

This 4x11x4mm metal motor bearing is manufactured for electric R/C motor applications. The BB-1140P in Yokomo's Pure Evolution range is sized to replace bearings in motors that accept the 4x11x4mm configuration, helping to lower rotational drag and stabilise the motor shaft at speed.

Installation notes: confirm both inner and outer dimensions match your motor housing and shaft before removal. Use a suitable driver to press the bearing in straight and maintain alignment between the shaft and endbell to avoid scoring or off-centre seating. After installation, confirm the rotor spins freely and shows no lateral play.

Tuning and maintenance: as a low-friction support component, this bearing can influence heat generation and service life under load. Check bearings regularly for roughness, play, or signs of overheating and replace them when necessary. Prevent exposure to water and abrasive particles to extend bearing life.
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.

How can I confirm the BB-1140P will fit my motor model?

Check your motor's bearing bore and shaft journal dimensions; if they match 4x11x4mm the BB-1140P is the correct dimension. Also ensure the housing depth and endbell clearances accept the replacement bearing.

Are there issues mixing aftermarket endbells or shafts?

Mixing aftermarket endbells or shortened shafts can alter bearing seating and clearance. Verify that any non-standard components maintain proper bearing support and axial clearance to avoid premature wear.

Does lubrication affect bearing performance?

Appropriate light lubrication can reduce friction and noise, but excess grease attracts debris. Use lubricants recommended for high-speed small bearings and recheck performance after running.

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