10:20Air Brakes Explained Simply :: Service, Parking and Emergency Brakes One & the Same
Smart Drive Test
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TRW
DF4742
Brake disc
Specifications
- Brake Disc Thickness
- 7 mm
- Centering Diameter
- 61 mm
- Height
- 41 mm
- Minimum thickness
- 6 mm
- Outer Diameter
- 240 mm
- Thread Size
- 12,7
- Brake Disc Type
- solid
- Bolt Hole Circle Ø
- 100
- Number of Holes
- 4
- Colour
- Black
- Surface
- Painted
- Weight
- 3.444 kg
Vehicle Manufacturers
NISSAN(1 items)
NISSAN
43206-5F001
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12:53
9:44CDL Class A FULL In Cab Inspection and Air Brake Test 2023 - Pass Your CDL Trucking Road Test
Driving Academy | CDL Truck Driving School
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A brake disc (rotor) is the metal disc that the brake pads clamp onto to slow the wheel.
When the pads press against the spinning disc, friction converts the vehicle's motion into heat, which the disc dissipates; commercial vehicle discs are large and heat-resistant for high loads and repeated braking.
Mounted at the wheel as part of a disc brake. Because braking is safety critical, discs and pads are inspected on schedule and replaced by axle set by a qualified technician.
Frequently asked questions
Does DF4742 have compatible (OE) part numbers?
Yes — it is linked to 1 OE-compatible part number(s), shown in the compatible parts section above.