Product Description
Toyota Bearing Cone (SKU: TO 00591-43991-81), a tapered roller cone for electric lift truck applications, featuring an 85.725 mm bore, 41.275 mm cone width, stamped steel cage, and high load ratings. OEM and manufacturer part numbers confirmed; suitable for Toyota electric lift truck models.
Specifications
Material & Construction
| Bearing Cage Material | Stamped steel |
Mechanical Specifications
| Dynamic Radial Rating (C1, 1 million revolutions) | 247,000 N |
| Dynamic Radial Rating (C90, 90 million revolutions) | 64,000 N |
| Static Radial Rating (C0) | 335,000 N |
| Dynamic Thrust Rating (Ca90, 90 million revolutions) | 44,800 N |
| K-Factor | 1.43 |
Part Numbers & Compatibility
| OEM Part Number | 00591-43991-81 |
| Manufacturer Part Number | TY00591-43991-81-TIM |
Frequently Asked Questions
Q: What are the specifications for the Toyota bearing cone TO 00591-43991-81?
A: The TO 00591-43991-81 is a tapered roller cone with an 85.725 mm bore and 41.275 mm cone width. Dynamic radial rating at 1 million revolutions is 247,000 N; at 90 million revolutions it is 64,000 N. Static radial rating is 335,000 N. Dynamic thrust rating at 90 million revolutions is 44,000 N.
Q: What type of cage does the TO 00591-43991-81 bearing use?
A: The TO 00591-43991-81 uses a stamped steel cage, which provides durability in medium to high-load applications typical of electric lift truck drivetrains.
Q: Which Toyota lift truck models use the TO 00591-43991-81 bearing cone?
A: The TO 00591-43991-81 is an OEM Toyota component for electric lift truck axle assemblies. Verify compatibility with your model by providing your equipment model number and confirming the bearing bore and width match your specifications.
Q: Can the TO 00591-43991-81 bearing be paired with non-Toyota cups or races?
A: Tapered roller bearing cones must be paired with matching cups and races for proper load distribution and rated performance. Verify bore diameter, cone width, and load ratings match your cup assembly before ordering.
Q: What maintenance extends the lifespan of the TO 00591-43991-81 bearing cone?
A: Regular lubrication, proper bearing preload adjustment, and periodic inspection for wear are critical. Contamination and inadequate lubrication reduce bearing life significantly. Follow manufacturer maintenance schedules for your lift truck model.
Q: What symptoms indicate the TO 00591-43991-81 bearing cone needs replacement?
A: Signs of bearing failure include grinding noises during operation, excessive axle play, vibration, or visible spalling on the cone surface. Any of these symptoms requires immediate inspection and replacement to prevent drivetrain damage.