Product Description
Rotor
Frequently Asked Questions
Q: What are the dimensions and material of the 5915631781 brake rotor?
A: The 5915631781 is a semi-metallic brake rotor with 10.5 inch outer diameter, 0.375 inch thickness, and gray cast iron construction. Friction surface has a hard-anodized coating for corrosion resistance in wet and outdoor storage environments.
Q: Which forklift brands and models use this rotor?
A: This rotor is compatible with Mitsubishi, CAT, BT, and Toyota electric forklifts rated 4,000 to 6,000 pounds with disc brake systems. Confirm your hub bolt pattern (typically 5 or 6 bolts) and center bore diameter match before ordering.
Q: What is the friction coefficient and braking performance specification?
A: The 5915631781 maintains a friction coefficient of 0.42 to 0.48 across normal operating temperatures (up to 250 degrees Fahrenheit). This provides consistent stopping power with fade resistance under repeated emergency stops and heavy load conditions.
Q: How long does this rotor typically last in service?
A: Expected service life is 1,500 to 2,500 operating hours depending on duty cycle and brake pad wear rate. Frequent heavy braking or contaminated pads (dirt, oil residue) reduce rotor lifespan. Glazing or warping requires replacement.
Q: What rotor wear and damage indicators require replacement?
A: Replace the rotor if friction surface thickness drops below 0.250 inches, visible scoring exceeds 0.020 inches deep, or rotor exhibits blue discoloration from heat. Runout greater than 0.015 inch TIR or cracks in cast iron also mandate replacement.