Spherical Roller Bearing – 45×100×25 mm (Explorer, Tapered Bore 1:12)

Category: Spherical roller bearings
Product ID: 10045113
Customs Tariff Number: 8482 3000
EAN: 7316577742223
Manufacturer Part Number: 7316577742223
Weight: 0.980 kg

1. Dimensions

Metric

• Inner Diameter (d): 45.000 mm
• Outer Diameter (D): 100.000 mm
• Width (B): 25.000 mm

Inch (approx.)

• Inner Diameter: 1.7717 in
• Outer Diameter: 3.9370 in
• Width: 0.9843 in

2. Product Properties

• Bearing Type: Spherical roller bearing
• Material: Standard bearing steel (rings and rollers)
• Outer Ring:
• Lubrication groove
• Lubrication holes in outer ring
• Seal: None – open bearing
• Radial Clearance: Normal radial clearance
• Cage: Sheet steel cage
• Bore Type: Tapered bore 1:12
• Version:
• Standard version
• Explorer performance class
• Temperature Range: –30 °C to +200 °C
• Tolerance Class:
• Dimensional accuracy: PN
• Running accuracy: P5

3. Technical Description

This bearing is a spherical roller bearing with a tapered bore (1:12), designed to carry:

• Very high radial loads
• Axial loads in both directions

The internal design includes two rows of barrel-shaped rollers guided by a sheet steel cage and a spherical outer ring raceway, giving the bearing self-aligning capability. This allows it to compensate for:

• Shaft misalignment
• Housing deformation
• Shaft deflection under load

The tapered bore (1:12) allows mounting on:

• Tapered shafts directly, or
• Cylindrical shafts using an adapter sleeve or withdrawal sleeve

This provides flexible mounting options and the ability to adjust internal clearance during installation.

The lubrication groove and holes in the outer ring make relubrication easy and reliable, especially in heavily loaded or high-temperature applications.

As an Explorer-class bearing, it features optimized internal geometry and surface finish for:

• Higher dynamic load capacity
• Reduced friction and operating temperature
• Longer service life compared to standard spherical roller bearings

4. Typical Applications

• Heavy-duty industrial gearboxes
• Crushers, screens, and mining machinery
• Pulp and paper processing equipment
• Conveyors and material-handling systems
• Large electric motors and industrial drives

Ideal wherever:

• High radial and axial loads are present
• Misalignment must be tolerated
• A tapered bore is preferred for adjustable fit and easy mounting/removal

5. Key Advantages

• Self-aligning capability – compensates for misalignment and shaft deflection
• High load capacity – supports heavy radial plus axial loads in both directions
• Tapered bore 1:12 – flexible mounting with sleeves or tapered shafts and adjustable internal clearance
• Lubrication groove and holes – improved lubrication reliability
• Explorer performance – optimized design for longer life and lower operating temperature
• Wide temperature range (–30 °C to +200 °C) for tough industrial environments

   PACKAGE INCLUDES: ONE (1) SKF Bearing 21309 E K