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Double Row Angular Contact Ball Bearings (General) 3308 DMA
Double Row Angular Contact Ball Bearings (General) 3308 DMA

Double Row Angular Contact Ball Bearings (General) 3308 DMA

The 3308 DMA is a double-row angular contact ball bearing with a 40mm bore and 90mm outer diameter, crafted from sturdy chrome steel. It manages radial loads up to 15502 lbf and operates smoothly at speeds up to 7000 RPM.

Its open design and brass cage ensure durability and easy maintenance, while the double-row construction provides stability under angular loads. The bearing performs reliably in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Suitable for applications like pumps or gearboxes where angular contact and high radial loads are common.

Weighing 1.05kg, it offers a robust yet manageable size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 3308 DMA
  • Brand TFL & OEM
  • Interchangeable With SKF
  • System of Measurement Metric
  • Bearing Type Ball
  • For Load Direction Angular Contact
  • Construction Double Row
  • Seal Type Open
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 36.5 mm
  • Width Tolerance -0.05mm to 0
  • Chamfer Dimension 1.5 mm
  • Distance Pressure Point (a) 84 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 15502 lbf
  • Static Radial Load 12825 lbf
  • Max Speed 7000 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 1.05 kg
  • Internal Diameter On Outer Ring 59.4 mm
  • Price($) 77.8 mm

Features

Performance Features of 3308 DMA Bearing

3308 DMA Bearing is built with chrome steel rings and balls, offering robust performance under heavy radial loads.
Its dynamic radial load capacity of 15502 lbf ensures reliability in demanding applications.
The brass cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 7,000 rpm, it delivers efficient operation in various conditions.

How Is 3308 DMA Bearing Engineered for Reliability?

3308 DMA Bearing features a double-row angular contact design, providing stable support for combined loads.
The chrome steel construction resists wear, while the brass cage ensures smooth movement.
Its precision P6 tolerance class guarantees consistent performance in high-speed applications.
Operating between -30° to 110°C, it adapts to a wide range of environments.

Built for Durability: 3308 DMA Bearing

3308 DMA Bearing’s chrome steel components and brass cage offer long-lasting performance.
The double-row design distributes loads evenly, reducing stress on individual balls.
With a static radial load capacity of 12825 lbf, it handles heavy-duty tasks effortlessly.
Its open seal type allows for easy lubrication, ensuring smooth operation over time.

Steel vs Ceramic Bearings: Strengths of 3308 DMA Bearing

3308 DMA Bearing uses chrome steel for its rings and balls, balancing strength and cost-effectiveness.
The brass cage provides excellent durability and reduces noise during operation.
Its double-row design enhances load distribution, making it suitable for angular contact applications.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

Application

Common Applications of 3308 DMA Bearing
3308 DMA Bearing is widely used in industrial machinery, especially in applications needing high radial and axial load capacity, such as gearboxes and pumps. Its double-row design offers stability, making it suitable for heavy-duty operations.

In automotive systems, 3308 DMA Bearing is often found in wheel hubs and transmissions, where its angular contact feature handles combined loads effectively. The brass cage ensures smooth rotation even under high stress.

For automation equipment, 3308 DMA Bearing supports robotic arms and conveyor systems, providing reliable performance in repetitive motion tasks. The P6 tolerance class guarantees precision in demanding environments.

Where Is 3308 DMA Bearing Used?
You’ll often spot 3308 DMA Bearing in machine tools, where its chrome steel construction withstands continuous use. The open seal design allows for easy lubrication, extending its service life.

In household appliances like washing machines, 3308 DMA Bearing reduces vibration and noise during spin cycles. Its metric sizing ensures compatibility with a variety of European-made components.

Built for Heavy-Duty Use: 3308 DMA Bearing
3308 DMA Bearing excels in construction equipment, such as cranes and excavators, thanks to its robust load-bearing capacity. The brass cage adds durability, even in dusty or wet conditions.

Medical imaging devices also benefit from 3308 DMA Bearing’s precision, ensuring smooth operation during scans. The temperature range of -30° to 110°C makes it versatile for different climates.

Q&A

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