Derived from the French silk industry, "Haitienne" refers to a high-end fabric known for its durability and smooth finish. Its use in industrial rollers indicates a specialty covering for handling delicate materials, providing an exceptionally smooth surface to prevent scratches.
Apply high-temperature, extreme-pressure (EP) synthetic lubricants to limit friction. 4. Harmonic Vibration Testing Derived from the French silk industry, "Haitienne" refers
The in the string is the most mechanically significant number. It refers to a standard inch-series needle roller bearing with a 1-inch bore (25.4 mm) . The SCE168 and B-168 models are drawn-cup, full-complement needle roller bearings (lacking a cage), which allow for a high number of rollers and thus a very high radial load capacity. Specific dimensions for the 168-series are nearly universal across manufacturers: The SCE168 and B-168 models are drawn-cup, full-complement
"K93N" appears as a model suffix for specialized tools and machinery. For example, the Graham Chronofighter Oversize watch uses the code "2CCBK.E02A.K93N" to denote a specific production variant with a carbon fiber case. In a roller context, this suggests the "K93N" identifier is used to distinguish a specific design, material, or coating of the roller assembly. In a roller context
The final component, , points to the application context —specifically, the installation and maintenance of needle roller bearings. Harley-Davidson forums, for example, report on installing Torrington B-148 bearings , noting that a run of 168-series bearings had issues where the needles were slanted within the outer races and binding. A proper "fix" involves using an assembly lube worked into the needle rollers prior to installation and ensuring the installation tool’s shoulder is flat and square to avoid distorting the bearing. The "Fix" also aligns with broader industrial processes such as "fixing rollers" used in electrophotographic printing systems (copiers and laser printers), which are cylindrical resin bodies designed to apply heat and pressure to fuse toner onto paper.
Components built to "Extra Quality" standards rely heavily on high-carbon chromium bearing steels (such as AISI 52100 or specialized Japanese JIS SUJ2 variants). These metals undergo rigorous heat treatment processes:
: Shake the pen vigorously with the tip pointing down to move the ink toward the ball.