BRAND: TIMKEN

ID: 22780 22720

Timken 22780/22720

Single-Row Tapered Roller Bearing

Brand: Timken
Item Number: 22780/22720
Also Known As:

• 22780/20
• 22780/720
• 22780-99401
  Category: Tapered Roller Bearing – Single Row
  Weight: 0.61 kg

1. Dimensions

Metric

• Inner Diameter (d): 42.86 mm
• Outer Diameter (D): 82.55 mm
• Width (B): 26.19 mm

Inches

• Inner Diameter: 1.6875 in
• Outer Diameter: 3.25 in
• Width: 1.0313 in

2. Product Properties

• Bearing Type: Single-row tapered roller bearing
• Design: Cup & Cone assembly (separable)
• Precision Class: Standard precision
• Load Direction: Radial and axial (one direction)
• Sealing: Open bearing
• Material: High-grade bearing steel
• Construction:
• Conical raceways
• Tapered rollers
• Steel cage

3. Technical Description

The Timken 22780/22720 is a premium-quality, single-row tapered roller bearing engineered to accommodate combined loads, meaning it can support both radial and axial forces. Because the raceways are conical and the rollers are tapered, the bearing operates with excellent stability and load distribution.

This bearing is built using a cup and cone assembly:

• Cone: Inner ring + roller set + cage
• Cup: Outer ring

This design makes the bearing easy to assemble and disassemble, an advantage for maintenance-heavy applications.

Single-row tapered roller bearings require a second bearing mounted in a mirror-image arrangement to properly handle axial loads in both directions. Paired arrangements can be configured as:

• X-arrangement (crossed)
• O-arrangement (face-to-face)
• Tandem arrangement (same direction)

These configurations allow designers to tune axial rigidity, load direction, and bearing life.

4. Typical Applications

Automotive & Truck Industry

• Wheel hubs
• Axle assemblies
• Gear differentials
• Transmissions

Industrial Equipment

• Gearboxes
• Conveyors
• Rollers
• Pumps
• Heavy-duty machinery

Agricultural & Construction Machinery

• Drives
• Gear sets
• Rotating support assemblies

General Engineering

Ideal for:

• Combined radial + axial load conditions
• High-load applications
• Precise shaft guidance
• Equipment requiring reliability and long service life

5. Key Advantages

• High axial and radial load capacity
• Robust cup-and-cone separable design
• Reliable performance under heavy loads
• Durable Timken metallurgy and heat treatment
• Compatible with many standard OEM applications
• Proven long service life

PACKAGE INCLUDES: ONE (1) Timken Bearing 22780/22720