Product Description
Brush set (OEM part number CR 87855) for Crown electric lift truck motors. Set of 4 high-grade electrographitic carbon brushes, engineered to OEM dimensions for direct replacement in traction and hydraulic pump motor assemblies.
Compatibility: Fits pallet jacks made by Crown, model GPW. SKU: CR 87855
Specifications
Material & Construction
| Brush Material | High-grade electrographitic carbon |
Mechanical Specifications
| Brush Thickness | 0.628 inch |
Part Numbers & Compatibility
| OEM Part Number | CR 87855 |
| Alternate Part Numbers | 87855, CR87855 |
Frequently Asked Questions
Q: What does the CR 87855 brush set contain?
A: The CR 87855 is a set of 4 high-grade electrographitic carbon brushes designed as a direct replacement for Crown electric lift truck motors. Each brush is engineered to OEM dimensions for traction and hydraulic pump motor assemblies.
Q: What Crown models does the CR 87855 brush set fit?
A: The CR 87855 is designed for Crown GPW series electric pallet jacks. Verify your equipment model matches before ordering, as brush dimensions and electrical specifications vary across different Crown product lines.
Q: What is the brush thickness specification for CR 87855?
A: The CR 87855 brush set has a standard thickness of 0.628 inch (15.95 mm). This dimension is critical for proper seating in the brush holder and maintaining consistent electrical contact with the commutator.
Q: Why are electrographitic carbon brushes used in electric motors?
A: Electrographitic carbon brushes provide excellent electrical conductivity while minimizing commutator wear and heat generation. They deliver consistent power transfer across varying motor load conditions and have a longer service life than softer carbon materials.
Q: How long do electric motor brushes typically last?
A: Motor brushes typically last 2 to 5 years depending on equipment usage, motor load, and operating conditions. Reduced power output, sparking, arcing, or visible brush wear down to stub length indicate replacement is needed.
Q: What are the alternate part numbers for CR 87855?
A: The CR 87855 brush set is also referenced as 87855 and CR87855 across different Crown documentation and supplier systems. All three designations refer to the same OEM brush set.
