Product Description
Bearing assembly 71404750 is a precision sealed ball bearing with 20 mm bore diameter, 47 mm outer diameter, and 14 mm width, constructed of high carbon chromium steel and equipped with dual contact rubber seals. Designed for manual pallet jack wheel assemblies, it meets ABEC 1 tolerance standards and Rockwell C58 minimum hardness. No cross-reference part numbers are available.
Specifications
Material
| Bearing Material | High carbon chromium steel |
| Hardness | Rockwell C58 minimum |
Part Numbers
| OEM Part Number | 71404750 |
Frequently Asked Questions
Q: What are the exact dimensions of bearing 71404750?
A: The 71404750 bearing has a 20 mm bore diameter, 47 mm outer diameter, and 14 mm width. These dimensions fit manual pallet jack wheel assemblies from Crown, Toyota, Raymond, and equivalent brands. Verify these measurements match your equipment before purchasing to ensure proper fit.
Q: What does ABEC 1 tolerance mean for the 71404750?
A: ABEC 1 is the most basic bearing tolerance standard, meaning the bore and outer diameter are held within loose manufacturing tolerances. This standard is appropriate for material handling equipment where precision is less critical than durability. ABEC 1 bearings are more economical than higher-grade ABEC 5 or ABEC 7 alternatives.
Q: What material is the 71404750 bearing made from?
A: The 71404750 is constructed of high carbon chromium steel with a minimum Rockwell C58 hardness rating. This material resists wear under load and provides excellent durability in warehouse and manufacturing environments. The dual contact rubber seals protect the steel races and balls from moisture and contamination.
Q: How do dual contact rubber seals protect the 71404750?
A: Dual contact rubber seals on both sides of the 71404750 bearing create a barrier against water, dirt, and corrosive materials. The seals touch the inner race lightly, keeping contaminants out while minimizing friction loss. This design extends bearing life in wet and cold storage environments compared to open or single-seal designs.
Q: Are there cross-reference part numbers for the 71404750?
A: No cross-reference part numbers are available for the 71404750. This is an OEM-equivalent bearing designed to match the original part specifications. If you need to verify compatibility with your equipment, provide the pallet jack model and serial number.