TSF Single Row Tapered Roller Bearings with Flange (Metric)

TSF (Single Row Tapered Roller Bearings with Flange) (Metric) are precision-engineered for handling both radial and axial loads in demanding applications. With flanged outer rings, they ensure precise axial alignment and reduce machining costs in through-hole housings. Known for their low friction, durability, and versatility, TSF bearings are ideal for heavy-duty, moderate-speed applications across industries such as automotive, aerospace, construction, and machinery. Customization in geometry, sealing, and materials is also available to meet specific application needs.

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What Are TSF (Single Row Tapered Roller Bearings with Flange) (Metric)?

TSF bearings feature a single row of tapered rollers and a flanged outer ring, making them ideal for applications requiring accurate axial positioning. These bearings accommodate combined loads and are designed for optimal load distribution, low friction, and long service life.

Key Design Attributes

Combined Load Support: Accommodates simultaneous radial and axial loads.
Axial Positioning: Flanged cup ensures precise alignment in through-bored housings.
Low Friction: Rolling elements are aligned to intersect at a common point on the axis, reducing frictional torque.
Adjustable Contact Angle: Axial load capacity increases with contact angle α (typically 10°–30°).

Material Options

Chrome Steel: Offers high load capacity and low operational noise—ideal for standard applications.
440C Stainless Steel: Rust-resistant and suitable for high-speed, high-load environments.

Precision Classes

Available in ABEC-1 to ABEC-5, with ABEC-3 being standard for general use and ABEC-5 preferred for precision-critical environments due to enhanced race geometry and noise reduction.

Bore Size Range

Available in bore diameters from 7.937 mm to 1270.000 mm, covering a wide range of industrial requirements.

Sealing Options

Open Type
Rubber-Sealed Type
Metal-Shielded Type

Sealed and shielded types are available upon request for enhanced protection against contaminants.

Core Advantages

Low Friction and Noise

Optimized roller and flange designs reduce friction and heat generation, promoting stable performance and longer bearing life.

Extended Service Life

Logarithmic raceway profiles improve load distribution, minimize stress concentration, and reduce sensitivity to misalignment.

High Reliability

Special surface treatments promote fluid dynamic lubrication film formation, ensuring smoother operation under load.

Dimensional Consistency

Rollers are manufactured with high precision to ensure consistent profiles, reducing vibration and enabling accurate preload.

Support for Rigid Configurations

When paired with another tapered roller bearing, TSF units can be preloaded for applications requiring increased rigidity.

Controlled Running-In

Initial wear and heat buildup are minimized with correct mounting and proper lubrication, enhancing performance during the running-in phase.

Separable and Interchangeable

Inner and outer components are separable and compatible with similarly sized TSF units, easing installation, maintenance, and inspection.

Measurement System

Metric

Lubrication Options

Factory-lubricated using a broad selection of premium greases. Customer-specified lubricants also supported. Backed by over 20 years of lubrication expertise.

Temperature Resistance

Standard chrome steel TSF bearings can operate at up to 120°C continuously or 150°C intermittently. High-temperature versions are available through special heat treatment and grease.

Applications

TSF (Metric) bearings are ideal for applications requiring durability and load-handling capability in moderate-speed conditions. Common uses include:

Automotive drive axles and gear reducers
Aircraft landing wheels
Thermal power coal conveyors
Agricultural equipment like rakes and tension rollers
Port machinery and railroad axle-boxes
Machine tool spindles
Construction and mining equipment
Rubber and other industrial applications

Why Choose Us?

With 22 years of specialization in TSF bearings, we provide:

Immediate delivery from a vast inventory, including rare specifications
Expert support for installation, troubleshooting, and maintenance
Customized engineering solutions tailored to real-world conditions
Proven success with North American clients (Tesla, Google, NASA, etc.)
Bearings featured in top-tier products, e.g., Mercedes-Benz S-Class consoles

Interchangeability

Fully interchangeable with TSF bearings from leading brands such as Timken. Flanged cups ensure proper axial positioning and sealing alignment in through-housing bores.

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