LM4AHJ8209

Frequently Asked Questions

Q: What is the LM4AHJ8209 bearing cup used for?
A: The LM4AHJ8209 is a precision-machined bearing cup for electric lift truck applications. It is the inner race of a tapered roller bearing assembly and is used in steering knuckles, hubs, and wheel assemblies to support axle loads and enable smooth rotation.

Q: Is the LM4AHJ8209 a direct OEM replacement?
A: Yes. The LM4AHJ8209 is a direct OEM replacement bearing cup. It is equivalent to factory bearing cups used in Crown, Toyota, Raymond, and Hyster electric lift trucks. Cross-reference your equipment model and serial number before ordering.

Q: What are the dimension specifications for the LM4AHJ8209?
A: The LM4AHJ8209 is a tapered roller bearing cup with precision dimensions. Verify bore diameter, outer diameter, and width specifications against your equipment drawing or original part documentation to ensure proper fit.

Q: How long does a bearing cup typically last?
A: A bearing cup lifespan depends on load, speed, lubrication, and maintenance. Under normal warehouse use, bearing cups last 2000 to 5000 operating hours. Proper greasing, alignment, and load distribution extend bearing life. Signs of failure include noise, play, or heat at the hub.

Q: What material is the LM4AHJ8209 manufactured from?
A: The LM4AHJ8209 bearing cup is precision-machined from hardened chrome steel. This material provides strength, rigidity, and wear resistance necessary for supporting consistent wheel loads and steering forces in electric lift trucks.