61911-2RS1/W64F
618 & 619 Series Thin Section Bearings
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Materials
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61911-2RS1/W64F Bearing Product Overview & Core Advantages
The 61911-2RS1/W64F is a **metric, single row deep groove ball bearing** designed for high reliability and consistent performance in demanding applications. Its **sealed construction** with **Soild Oil lubrication** provides long-term, maintenance-free operation, making it ideal for applications where re-lubrication is difficult or undesirable. Engineered with **precision tolerances (ABEC 1 | ISO P0)**, this bearing offers smooth operation and is capable of handling significant **radial loads**, with a dynamic load rating of 3709 lbf. Its compact design, featuring a 55 mm bore and 80 mm outside diameter, provides an excellent solution for space-constrained assemblies requiring robust performance.
Model Code Breakdown
- 61911: Basic model number denoting a single row deep groove ball bearing with a 55mm bore and 80mm outside diameter.
- 2RS1: Signifies that the bearing is fitted with two (2) rubber contact seals (RS1) on both sides. This provides superior protection against contaminants and retains lubricant effectively.
- W64F: Indicates the bearing is pre-lubricated with a specific, high-performance **Soild Oil** polymer lubricant. This offers a wide operating temperature range (-30° to 120 °C) and eliminates the need for re-lubrication.
61911-2RS1/W64F Bearing Structural Features & Performance Benefits
The bearing's performance is derived from its robust construction and advanced features. The use of **chrome steel** for all critical components (rings, balls, cage) ensures high strength and durability. The **integral contact seals (2RS1)** provide excellent exclusion of moisture and debris, significantly extending service life in harsh environments. The **pre-applied Soild Oil lubricant (W64F)** is a key advantage, offering stable lubrication across a broad **temperature range** and enabling the bearing to achieve its maximum **limiting speed** of 11,000 rpm without grease throw-out or degradation. This combination results in a **maintenance-free bearing solution** with high operational reliability.
61911-2RS1/W64F Bearing Typical Application Areas
This versatile bearing is well-suited for a wide range of applications across various industries, including:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (e.g., conveyor rollers)
- Agricultural Machinery
- Automotive Components (e.g., alternators, pumps)
- Appliance Motors (e.g., washing machines, dryers)
