Overview
The Baer Brakes 6910147 is a one-piece, full cast left-side replacement rotor with a slotted surface, sized for select Baer Brake systems. It is 12.000 inch in outside diameter and 1.02 inch thick, with five studs on a 4.75 inch bolt circle and a 2.78 inch center hole. Confirm the hub, caliper and register against your Baer system, and check fit for your vehicle’s year, model and trim before ordering.
The one-piece casting includes a drum in hat, is vented, and has a directional brake surface. Its overall height is 2.406 inch. Because it is a left-side part, it belongs on the left hub only, and it is sold individually.
Key features
- One-piece full cast construction
- Slotted friction surface
- Drum in hat design
- Five-stud pattern on a 4.75 inch circle with a 2.78 inch center hole
- Vented, directional brake surface
- Curved vane layout for cooling
- Dynamically balanced for smooth running
Hub and register fit
On a one-piece rotor with a center register, the bore is what centers the disc on the hub, and the wheel studs carry the clamping load. If the register is worn, out of round or fitted to a hub with a different spigot, the rotor can wobble even when the bolts are tight. Check the hub face for rust, scoring and old friction debris before mounting.
Because the hat is part of the casting, the friction face sits at a fixed position relative to the hub. Install the rotor with the hub face clean, and tighten the fasteners in a star pattern to the torque your vehicle calls for, which helps prevent distortion. A dial indicator can check runout before the wheel goes back on, and any runout beyond what the vehicle’s repair guidance allows calls for further inspection.
- Clean the hub face and register surface
- Check that the center bore seats fully
- Tighten fasteners in a star pattern
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 6910147 |
| UPC | 90127960936 |
| Construction | Full cast, one piece |
| Axle position | Left |
| Surface type | Slotted |
| Material | Cast iron |
| Outside diameter | 12.000 inch |
| Nominal thickness | 1.02 inch |
| Overall height | 2.406 inch |
| Stud/lug hole quantity | 5 |
| Stud/lug hole circle diameter | 4.75 inch |
| Center hole diameter | 2.78 inch |
| Drum in hat | Yes |
| Rotor style | Vented |
| Brake surface | Directional |
| ABS tone ring included | No |
| Grade type | Performance |
| Emission code | 6 |
| Sold as | Each |
| Country of origin | USA |
Vehicle fitment
The rotor is sized for select Baer Brake systems, so compare the hub, caliper and 2.78 inch register to your setup before buying.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Check that the 2.78 inch center hole fits the hub’s register before installing, because a register that does not match will keep the rotor from seating square. Install it on the left hub only. As a one-piece casting it has no separate hat to assemble.
What’s included
One left-side one-piece rotor, sold individually.
Not included: ABS tone ring.
