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TS (Single Row Tapered Roller Bearings) (Metric) 30203

TS (Single Row Tapered Roller Bearings) (Metric) 30203

The A4050-A4138-B is a single-row tapered roller bearing with a flange, measuring 0.5″ in bore and 1.3775″ in outer diameter. Made from durable chrome steel, it handles combined loads up to 2960 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its flanged cup design ensures secure mounting, while the open seal allows for easy lubrication. The steel cage provides stability, making it suitable for high-speed applications.

This bearing is interchangeable with Timken models, offering a reliable replacement option. Ideal for use in gearboxes, axles, or industrial machinery where combined loads are common.

Weighing just 0.100 lb, it’s lightweight yet robust. Compliant with RoHS and REACH standards, it meets ABEC-1 precision requirements for consistent performance.

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Product Parameters

  • Part Number 30203
  • Brand TFL
  • Interchangeable Brand Timken
  • System of Measurement Metric
  • Type Bearing
  • Sizes 17 mm x 40 mm x 13.25 mm
  • Cone Part Number X30203
  • Cup Part Number Y30203
  • Bore Dia 17 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 40 mm
  • Outer Dia Tolerance -0.014mm to 0
  • Cone Width 12 mm
  • Cone Width Tolerance -0.1mm to 0
  • Cup Width 11 mm
  • Cup Width Tolerance -0.15mm to 0
  • Width 13.25 mm
  • Width Tolerance +0.2mm to 0
  • Cone Backface ToClear Radius 1.02 mm
  • Cup Backface ToClear Radius 1.02 mm
  • Cone Frontface Backing Diameter 21 mm
  • Cone Backface Backing Diameter 22 mm
  • Cup Frontface Backing Diameter 37.59 mm
  • Cup Backface Backing Diameter 35.05 mm
  • Cage Cone Frontface Clearance 2 mm
  • Cage Cone Backface Clearance -0.3 mm
  • Effective Center Location -3.6 mm
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 30203
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 4792 lbf
  • Static Radial Load 4478 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 1244.25 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 735.75 lbf
  • Lubrication Required
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.22 lb

Features

How Does A4050-A4138-B Bearing Handle Combined Loads?

A4050-A4138-B Bearing features a tapered roller design, optimised for handling both radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 2960 lbf.

The flanged cup design provides secure mounting, enhancing stability in various applications.
With a temperature range of -30° to 110°C, it performs reliably in diverse conditions.

A4050-A4138-B Bearing’s steel cage maintains roller alignment, reducing friction and wear.
Its standard radial clearance options offer flexibility for different operational needs.

Application

Industrial Uses of A4050-A4138-B Bearing
A4050-A4138-B Bearing is commonly used in industrial machinery, especially in conveyor systems where combined loads are frequent. Its tapered roller design ensures smooth handling of both radial and thrust forces.
The flanged cup adds stability, making it suitable for applications requiring precise alignment. Chrome steel construction provides durability in demanding environments.

Where Is A4050-A4138-B Bearing Used?
In automotive applications, A4050-A4138-B Bearing fits well in wheel hubs and transmissions. Its inch sizing makes it compatible with many North American vehicle models.
The open seal design allows for easy lubrication, extending service life in high-load conditions.

Built for Heavy-Duty Use: A4050-A4138-B Bearing
A4050-A4138-B Bearing excels in agricultural equipment, such as tractors and harvesters. The steel cage ensures reliable performance under varying loads.
Its standard radial clearance offers flexibility for different operational needs.

Automotive vs Aerospace: Applications of A4050-A4138-B Bearing
In automotive systems, A4050-A4138-B Bearing handles combined loads in differentials and axles. For aerospace, its precision suits auxiliary equipment.
The ABEC-1 rating balances cost and performance for general machinery.

Key Fields for A4050-A4138-B Bearing
A4050-A4138-B Bearing is a go-to choice for construction equipment like compactors. Its robust design withstands heavy vibrations and shocks.
The temperature range of -30° to 110°C ensures reliability in diverse climates.

Q&A

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