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Home / Bearings & Bushings / Mounted Outer Spherical Ball Bearing Diamond Flange Type BRTF-12/15/17/20/25/30/35/40/45/50

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Bearing Type Spherical Roller
Flange Configuration Diamond-Shaped (4-Bolt)
Housing Material Cast Iron
Seal Type Double Lip Seals
Lubrication Pre-greased (Re-lubricatable)
Shaft Mounting Set Screw Locking
Precision Class ABEC-1
Operating Temperature -20°C to +120°C
Load Rating (Dynamic) Varies by Model
Country of Origin Imported

5 reviews

A

Anonymous

Apr 13, 2026

Rating: 4/5

Good quality, slow shipping

The bearing itself is solid and meets specifications. Only reason for 4 stars is the shipping took longer than expected, but the product quality is there.

A

Anonymous

Feb 21, 2026

Rating: 5/5

Bulk order success

Ordered 50 units for our warehouse maintenance stock. Consistent quality across all models from BRTF-12 to BRTF-30.

A

Anonymous

Feb 15, 2026

Rating: 5/5

Great fit for conveyor system

Installed these on our main conveyor belt system. The diamond flange made mounting straightforward and the bearing runs smoothly with minimal vibration.

A

Anonymous

Feb 02, 2026

Rating: 5/5

Exact replacement

Needed a replacement for a worn BRTF-20. This matched perfectly. The set screws hold tight and the grease fitting is accessible.

A

Anonymous

Jan 28, 2026

Rating: 5/5

Durable under vibration

Using these in a high-vibration environment. They have held up well over the last six months without needing adjustment.

5 FAQ

Q: Are mounting bolts included with the housing?

A: No, the pillow block housing is sold separately from the mounting hardware. Please select appropriate bolts for your application.

Q: What is the lead time for BRTF-50?

A: Most models including the BRTF-50 are in stock and usually ship within 2 business days.

Q: Can these handle shaft misalignment?

A: Yes, the spherical roller design allows for static misalignment compensation, typically up to 2 degrees.

Q: What grease is recommended for re-lubrication?

A: We recommend using a standard lithium-based multi-purpose grease suitable for rolling element bearings.

Q: Is the BRTF-25 compatible with a 25mm shaft?

A: Yes, the model number typically corresponds to the shaft diameter in millimeters. The BRTF-25 is designed for a 25mm shaft.

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