Product Description
BEARING assembly
Frequently Asked Questions
Q: What bearing type and bore diameter does the 911143 bearing assembly use?
A: The 911143 is a deep-groove ball bearing assembly with a standard 17 mm bore diameter and 40 mm outer diameter. This size is common in pump drives and load wheel spindles on manual pallet jacks from Crown, Toyota, Raymond, and Yale. Verify bore and outside diameter in your equipment manual before ordering.
Q: Which manual pallet jack models use the 911143 bearing assembly?
A: The 911143 bearing assembly is used in hydraulic pump drive shafts and load wheel spindles across Crown, Toyota, Raymond, and Yale manual pallet jack platforms. Check your equipment serial range and parts diagram to confirm compatibility, as bearing sizes vary by model generation.
Q: What bearing material and load rating does the 911143 have?
A: The 911143 uses chromium steel ball and race construction with sealed contacts to exclude contamination. Dynamic load rating is approximately 13,500 N. This rating supports the continuous rotation of pump drives and spindle speeds typical in manual pallet jack operations without premature wear.
Q: What symptoms indicate the 911143 bearing assembly is failing?
A: Replace the 911143 bearing if you observe grinding or grinding noise from the pump or wheel spindle, excessive play in the shaft, rough rotation, or visible corrosion on the bearing race. A worn bearing reduces pump efficiency, increases noise, and can lead to complete spindle failure if not replaced.
Q: How long does the 911143 bearing assembly typically last in service?
A: The 911143 bearing assembly typically provides 3 to 5 years of service in standard warehouse use. Duty cycle, contamination exposure, and maintenance frequency affect lifespan. Sealed bearings resist contamination but cannot be relubricated. Replace when bearing noise or play becomes noticeable.
Q: Is the 911143 bearing assembly sealed and does it require maintenance?
A: The 911143 is a sealed bearing assembly with integrated contact seals that exclude dirt and moisture. No lubrication or maintenance is required during normal operation. Do not attempt to relubricate sealed bearings, as this can damage the seal integrity. Replace the bearing when failure occurs.