Product Description
OD: 1.850 inch or 47MM; ID: 0.787 inch or 20MM; Width: 0.551 inch or 14MM
Frequently Asked Questions
Q: What are the complete dimensions of the BS 6204 LL bearing?
A: The BS 6204 LL bearing has an inner diameter of 0.787 inches (20 mm), an outer diameter of 1.850 inches (47 mm), and a width of 0.551 inches (14 mm). These dimensions conform to the standard deep groove ball bearing 6204 size family.
Q: What does the LL designation indicate on this bearing?
A: The LL designation typically indicates a deep groove ball bearing without shields or seals, meaning the raceway is fully open. This configuration is common when bearings are used in sealed housings or where external protection is provided by the equipment design.
Q: What is the dynamic load rating and typical application for this bearing?
A: The BS 6204 LL is rated for dynamic radial loads up to 2220 lbs. It is suitable for material handling equipment such as pallet jacks, load wheels on conveyors, and industrial casters where moderate to high radial loads are encountered with light axial loads.
Q: How does the open design compare to shielded or sealed bearings?
A: Open design bearings like the BS 6204 LL have lower friction and run cooler than sealed variants, improving efficiency. However, they offer no contamination protection and require cleaner operating environments. They are ideal for protected equipment housings and dry indoor applications.
Q: What grease specifications should be used if re-lubricating this bearing?
A: Use standard ISO VG 32 or VG 46 lithium complex or mineral-based grease for general applications. For cold storage or low-temperature service, specify low-temperature rated grease. Do not over-grease, as excess grease causes heating and premature bearing failure in high-speed applications.
