3212 A-2RS1TN9/MT33
Double Row Angular Contact Ball Bearings
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3212 A-2RS1TN9/MT33 Bearing Product Overview & Core Advantages
The 3212 A-2RS1TN9/MT33 is a double row angular contact ball bearing engineered for applications requiring high precision and reliability. Its compact design enables it to simultaneously handle significant combined loads—both radial and bidirectional axial loads—making it an ideal solution for space-constrained, high-performance assemblies. The bearing features integrated seals and factory-applied high-performance grease, ensuring long-term operational integrity and reduced maintenance needs.
Model Code Breakdown
- 3212: Basic designation indicating a double row angular contact ball bearing with a 60 mm bore and 110 mm outside diameter.
- A: Denotes a 30-degree contact angle, optimized for supporting high axial loads.
- 2RS1: Signifies the bearing is equipped with two rubber contact seals (RS1) on both sides, providing superior protection against contaminants and retaining lubricant.
- TN9: Indicates the cage is made of glass fiber reinforced polyamide (PA66), contributing to quiet operation, reduced friction, and suitability for higher speeds.
- MT33: Specifies the bearing is pre-lubricated with a high-performance lithium soap complex grease, suitable for a wide temperature range and offering long-term lubrication.
3212 A-2RS1TN9/MT33 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design and 30-degree contact angle provide exceptional rigidity and enable the bearing to support substantial combined radial and axial loads from both directions, ensuring stable performance under demanding conditions.
Enhanced Speed Performance: The lightweight TN9 polyamide cage minimizes centrifugal forces and friction, allowing for higher limiting speeds. Combined with the optimized MT33 grease, the bearing achieves a limiting speed of 4000 rpm.
Maintenance-Free Operation: The 2RS1 rubber contact seals effectively shield the internal components from dust and moisture while retaining the lubricant. This, along with the factory-applied MT33 grease, ensures long service life with minimal maintenance.
Precision Engineering: Manufactured to P6 (ABEC-3) tolerance class, this bearing guarantees high running accuracy, making it suitable for precision applications.
3212 A-2RS1TN9/MT33 Bearing Typical Application Areas
This precision bearing is widely used in various industrial sectors, including:
- Machine Tool Spindles
- Industrial Pumps and Compressors
- Gearboxes and Transmission Systems
- Precision Instruments and Medical Equipment
- Electric Motors and Generators
