Product Description
Thrust needle roller bearing NTA-3648, 2.250-inch bore, 3.000-inch outside diameter, and 0.0781-inch width, constructed of SAE 52100 chrome steel, with dynamic and static load capacities of 5,570 lbf and 32,000 lbf respectively. Directly interchangeable with INA TC3648 and Torrington NTA-3648. Designed for high load electric lift truck and industrial thrust assemblies.
Specifications
Material & Construction
| Bearing Material | SAE 52100 through-hardened chrome steel |
| Cage Material | Steel, precision-formed |
Part Numbers
| OEM Part Number | NTA-3648 |
| Cross-Reference Part Numbers | INA TC3648, JTEKT (Koyo) NTA-3648, Torrington NTA-3648 |
| Manufacturer Part Number | NTA3648 |
Frequently Asked Questions
Q: What are the dimensions and load ratings of the BS NTA-3648?
A: The BS NTA-3648 thrust needle roller bearing has a 2.250 inch bore, 3.000 inch outside diameter, and 0.0781 inch width. Dynamic load capacity is 5,570 lbf and static load capacity is 32,000 lbf, making it suitable for high-load thrust applications.
Q: What equipment uses the BS NTA-3648 bearing?
A: The BS NTA-3648 is designed for electric lift truck mast assemblies, vertical load management, and industrial thrust bearing applications. It is used in equipment from manufacturers including Hyster, Yale, Toyota, Crown, Jungheinrich, and Linde.
Q: What are the cross-reference part numbers for the BS NTA-3648?
A: The BS NTA-3648 directly interchanges with INA TC3648, JTEKT (Koyo) NTA-3648, and Torrington NTA-3648. All four part numbers refer to the same bearing specification and are directly substitutable.
Q: What material is the BS NTA-3648 made from?
A: The bearing races and rollers are constructed from SAE 52100 through-hardened chrome steel for maximum load capacity and durability. The cage is precision-formed from steel, ensuring accurate roller spacing under heavy thrust loads.
Q: How long does the BS NTA-3648 bearing last in normal operation?
A: Service life depends on load application, alignment, and lubrication. When properly maintained in vertical mast applications, the bearing can deliver thousands of operating hours. Replace immediately if you observe roughness, noise, or binding in the thrust direction.