Overview
The Baer Brakes 6920312 is a 2-piece slotted, drilled and zinc-plated replacement rotor ring for the right side of select Baer Brake systems. It is a vented cast iron ring with an outside diameter of 15 inches and a nominal thickness of 1.25 inches. Its directional design means it is made for one side of the vehicle.
Baer’s rotor ring uses purpose-built castings, a curved vane design for cooling and dynamic balancing for vibration-free performance. Its 12 mounting holes sit on a 9.45 inch bolt circle, so that bolt pattern is the first dimension to compare with the hub you are replacing.
Key features
- Two-piece construction with a separate rotor ring
- Slotted and drilled friction surface with zinc plating
- Curved vane design for cooling.
- Directional right-side rotor, not interchangeable with the left
- Dynamically balanced for vibration-free performance
- Designed for stability and resistance against distortion
- Cast iron, Performance grade
Two-piece rotor rings explained
A two-piece rotor separates the friction ring from the hat, so the ring can be replaced without changing the mounting hardware. That makes it useful for vehicles where the hat is still in good condition but the friction surface has worn or warped. The ring is held by fasteners that must be tightened evenly, and the mounting face under it must be clean for a flat seat.
The 15 inch size is large, so check that the wheel, caliper and bracket clear the ring with its new thickness. Heavier rotors add unsprung weight, and the bearings and hub should be inspected at the same time. Dust, road grime and salt can seize the ring to the hat, so clean the contact faces and apply anti-seize where the fastener type allows it.
- Check the hat for cracks before reusing it
- Measure ring thickness against the minimum marked on it
- Confirm the caliper clears the ring after installation
- Keep left and right rings separate during storage
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 6920312 |
| UPC | 844165012351 |
| Construction | Two piece |
| Axle position | Right |
| Solid or vented | Vented |
| Surface type | Slotted, drilled and zinc plated |
| Directional brake surface | Directional |
| Material | Cast iron |
| Grade type | Performance |
| Outside diameter | 15 in |
| Nominal thickness | 1.25 in |
| Mounting bolt hole circle diameter | 9.45 in |
| Mounting bolt hole quantity | 12 |
| ABS tone ring included | No |
| Emission code | 6 |
| Country of origin | USA |
| Sold as | Each |
Vehicle fitment
It is made for select Baer Brake systems. Measure the hub against the 9.45 inch bolt circle and the 12 mounting holes before matching it to a vehicle.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Measure the 9.45 inch bolt circle against your hub and confirm the 12 mounting holes match before mounting. Keep the ring on the right side, because the directional design is not interchangeable with the left. No ABS tone ring comes with it, so plan for one separately if your system uses it.
What’s included
One Baer Brakes 6920312 right-side two-piece rotor ring, sold individually.
Not included: Sold one ring at a time, so the left-side counterpart, pads, calipers and any tone ring are bought separately.
