Round Bore Agricultural Bearings

 Key Features for Agricultural Applications

Support Rotating Shafts

Proper alignment and load distribution for balers, augers, and conveyors

Minimize Friction

Reduces fuel consumption and prevents premature part wear

Lower Operating Costs

Less downtime, fewer repairs, more reliable harvests

Material

• Bearing ring: GCr15 bearing steel
• Housing: Cast iron or stamped steel
• Seals: Multi-lip rubber (NBR)
• Grease: High-temp agricultural grade

Common Sizes

• Bore: 20mm to 75mm
• Outer diameter: 47mm to 160mm
• Width: 18mm to 60mm
• Locking: Setscrew or eccentric collar

Performance

• Dynamic load: 12-60 kN
• Static load: 7-40 kN
• Max speed: 1,000-2,500 RPM
• Temp range: -30°C to +120°C

Out of the Box

All BMT agricultural bearings come pre-lubricated and ready to install immediately.

Normal Conditions

Inspect and relubricate every 500-1000 hours of operation — combine harvesters, balers.

Heavy / Muddy Conditions

More frequent lubrication required. Inspect after each heavy rain or mud exposure.

"Switched to BMT round bore bearings on our John Deere combine. 1,200 hours of harvest — zero failures. Old bearings used to fail every 400 acres."

"The triple-lip seals keep mud out of our baler bearings. We work in wet conditions — these bearings lasted 3x longer than the previous brand."

"BMT's pre-lubricated bearings saved us installation time. 500+ bearings used across our sprayers and spreaders. Highly recommend."

What's the most powerful feature of round-bore agricultural bearings?

Their ability to securely "grip" cylindrical shafts. The cylindrical bore design ensures the inner ring grips the shaft tightly — preventing loosening or slipping even under vibration and shock loads. This alignment extends both shaft and bearing life significantly.

How often should round-bore agricultural bearings be lubricated?

BMT bearings come pre-lubricated from the factory. Under normal conditions, inspect and relubricate every 500-1000 hours. For muddy or dusty conditions, more frequent lubrication is recommended. Always consult your equipment's maintenance manual.

What agricultural equipment uses round bore bearings?

Balers, combines, tractors, plows, harrows, seeders, spreaders, sprayers, hay rakes, and conveyor systems. Any rotating shaft in field equipment.

What types of seals do agricultural bearings use?

BMT agricultural bearings use multi-lip rubber seals (NBR) that effectively block mud, dust, and moisture while retaining grease. Contact seals (2RS) are standard for farm equipment.

What is the typical lifespan of an agricultural bearing?

With proper lubrication and normal field conditions, BMT agricultural bearings typically last 2,000-5,000 hours. Heavy shock loads or abrasive dust may reduce lifespan.

Are BMT bearings compatible with major equipment brands?

Yes. BMT bearings are designed to be interchangeable with John Deere, Case IH, New Holland, Massey Ferguson, Kubota, and other major brands. Provide your OEM part number for cross-reference.