SKF BBYB 631137 Insert Ball Bearing 35x72x30.5 mm | Agricultural Insert Bearing

What is the SKF BBYB 631137 Bearing?

The SKF BBYB 631137 is a premium insert ball bearing designed primarily for agricultural machinery, industrial equipment and applications where a bearing insert is mounted inside a bearing housing.

The bearing features a spherical outer ring, allowing slight self-alignment within compatible housings. It is equipped with a cylindrical bore, extended inner ring on both sides, double-lip contact seals protected by metal flingers, and is factory-filled with high-quality grease for long, maintenance-free operation.

Manufactured by SKF, one of the world's leading bearing manufacturers, the BBYB 631137 delivers OEM-quality performance, excellent durability and reliable operation under demanding agricultural conditions.

Technical Specifications

Key Features

The SKF BBYB 631137 offers:

• Premium SKF OEM quality
• Heavy-duty insert bearing design
• Spherical outer ring for self-alignment
• Extended inner ring on both sides
• Double-lip contact seals
• Protective metal flingers
• Factory-filled grease
• Excellent resistance to contamination
• Long service life
• Reliable performance in agricultural machinery

Typical Applications

The bearing is commonly used in:

• Agricultural machinery
• Seed drills
• Disc harrows
• Cultivators
• Hay and forage equipment
• Balers
• Rotary tillers
• Conveyor systems
• Industrial machinery
• Bearing housings
• General agricultural equipment

Advantages of the SKF Insert Bearing Design

The BBYB series is designed for demanding agricultural applications.

Key construction features include:

• Spherical outer ring for self-alignment
• Cylindrical bore
• Extended inner ring
• Double sealing system
• Metal flingers protecting the seals
• Factory grease lubrication
• High resistance to dirt and moisture

Why Choose SKF?

SKF is one of the world's most recognized manufacturers of rolling bearings and industrial solutions.

SKF bearings are known for:

• OEM manufacturing quality
• Precision engineering
• Long operational life
• Excellent sealing technology
• High reliability
• Worldwide availability
• Proven performance in agricultural and industrial equipment

OEM Cross Reference

The SKF BBYB 631137 is commonly referenced as:

• SKF – BBYB 631137
• Kverneland – KB0070507

Always verify compatibility using the original OEM number, dimensions and bearing design.

FAQ

What are the bearing dimensions?

The bearing dimensions are 35 × 72 × 30.5 mm.

Is this a self-aligning insert bearing?

Yes. The bearing has a spherical outer ring, allowing slight self-alignment when installed in compatible bearing housings.

Does the bearing have seals?

Yes. It features double-lip contact seals protected by metal flingers on both sides.

Is the bearing pre-lubricated?

Yes. The bearing is supplied factory-filled with grease and ready for installation.

What is the limiting speed?

The limiting speed is 3,200 rpm.

Frequently Asked Questions from Mechanics and Engineers

Why use an insert bearing with a spherical outer ring?

The spherical outside diameter allows the bearing to compensate for minor housing misalignment, reducing edge loading and extending service life.

What is the function of the metal flingers?

The metal flingers shield the contact seals from stones, dirt, mud and crop debris, significantly improving sealing performance in agricultural environments.

What are the most common causes of insert bearing failure?

• Improper shaft fit
• Housing misalignment
• Excessive contamination
• Water ingress
• Overloading
• Improper installation
• Damaged seals
• Lack of lubrication after extended service

Manufacturer Information (GSPR)

Responsible Manufacturer

SKF AB

415 50 Göteborg
Sweden

E-mail: customer.service@skf.com