Parts for your 2016 Toyota Bb-Centre bearing

2016 Toyota bB centre-bearing: do you actually have one?

Short answer: a centre-bearing isn’t used on the 2016 Toyota bB. That generation (model code QNC2#) is a front‑wheel‑drive layout with a transaxle and two short front drive shafts, so there’s no long, two‑piece tailshaft running down the car that would need a centre support bearing.

That call isn’t a guess. Toyota’s technical literature backs it up: the Toyota Electronic Parts Catalogue (EPC) for QNC20/QNC21/QNC25 shows no “Propeller Shaft” or “Centre Support Bearing” group for this model, and the New Car Features (NCF) manual for the bB describes an FF (front‑engine, front‑drive) powertrain with no prop shaft to the rear. Likewise, the Toyota Repair Manual for QNC2# covers front drive shafts and CV joints but contains no procedures for a propeller shaft or centre support bearing.

Why it isn’t used: a centre-bearing (often called a centre support bearing) is a prop‑shaft support used on many rear‑wheel‑drive and all‑wheel‑drive vehicles with a two‑piece tailshaft. It sits mid‑way to carry the shaft, keep it aligned, and reduce vibration. Because the 2016 bB doesn’t have a tailshaft at all, there’s simply nothing for a centre-bearing to support.

What the bB does have is different: most QNC2# variants use a right‑hand intermediate (stub) shaft with a support bracket and bearing as part of the front drive shaft assembly. In Toyota docs this is an intermediate shaft support bearing, not a centre-bearing. If there’s a rumble or vibration that sounds “driveline‑ish,” it’s more likely to be one of the following, rather than a non‑existent centre-bearing:

• Worn CV joints or inner tripod joints
• A tired RH intermediate shaft support bearing
• Out‑of‑round or imbalanced tyres/wheels
• Engine/transaxle mounts starting to collapse

If chasing a noise, a good workshop will road test, check tyre balance and condition, inspect CV boots for grease fling, and feel for play at the RH intermediate shaft support bracket. Any bearing roughness or shaft wobble there calls for replacement of the shaft assembly or the bearing to restore smooth running.

Technical sources referenced: Toyota Electronic Parts Catalogue (EPC) for bB QNC20/QNC21/QNC25 (no propeller shaft or centre support bearing listings), Toyota New Car Features (NCF) for bB QNC2# (FF layout with transaxle), Toyota Repair Manual for QNC2# (procedures for front drive shafts/CVs, none for prop shaft/centre bearing).

FAQs

Does a 2016 Toyota bB have a centre-bearing?
No. The bB is front‑wheel drive and doesn’t use a propeller shaft, so there’s no centre support bearing fitted. Toyota’s EPC and NCF documentation for QNC2# confirm the FF drivetrain and the absence of a prop shaft group.

What’s the bearing people talk about on the 2016 bB’s driveline, then?
That’ll usually be the right‑hand intermediate shaft support bearing for the front drive shaft. It supports the longer RH shaft to help manage NVH and torque steer. It’s not the same as a tailshaft centre-bearing.

I’m getting a vibration under the floor – what should be checked?
Start with wheel/tyre balance and condition, then inspect CV joints and boots. Have a tech check the RH intermediate shaft support bearing for roughness or play, and look over the engine and transaxle mounts. These are the usual suspects on a bB.