Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When a misaligned shaft or a hard-to-reach lubrication point brings your conveyor, agricultural equipment, or industrial machine to a halt, you need a bearing insert that works without constant maintenance. These UC series metric self-lubricating bearing inserts are engineered for engineers, maintenance technicians, and serious DIY builders who demand dependable radial load support with minimal upkeep.
Each bearing insert is manufactured from bearing-grade steel with a self-lubricating design that retains grease internally, reducing re-lubrication intervals. The bore range spans UC201 (12mm / 0.47 in) through UC216 (80mm / 3.15 in), covering the most common metric shaft diameters used in industrial and agricultural machinery. The outer spherical surface allows for angular misalignment compensation, typically up to 2–3°.
These UC bearing inserts are widely used in conveyor roller assemblies requiring continuous low-maintenance operation, agricultural equipment such as seeders and harvesters where field serviceability is limited, and general industrial machinery including fans, pumps, and packaging lines where shaft misalignment is common.
Internal grease reservoir reduces maintenance frequency, keeping the bearing running smoothly even in hard-to-access locations.
Covers metric shaft diameters from 12mm (0.47 in) to 80mm (3.15 in), making it easy to find the right fit for your application.
Allows angular misalignment compensation of typically 2–3°, accommodating shaft deflection and housing imperfections without bearing damage.
Designed to seat securely in standard UCP, UCF, UCFL, and UCFC series bearing housings for drop-in replacement or new builds.
Eccentric locking collar or set screw secures the insert to the shaft, preventing axial movement under load.
Standard grease nipple port allows supplemental lubrication when operating in high-load or high-temperature environments.
| Series | UC201 – UC216 |
|---|---|
| Bore Diameter Range | 12mm – 80mm (0.47 in – 3.15 in) |
| Bore Type | Metric, cylindrical |
| Outer Ring Shape | Spherical (self-aligning) |
| Misalignment Tolerance | Typically 2–3° |
| Locking Method | See variant options |
| Material | Bearing-grade steel |
| Lubrication | Pre-greased with grease fitting port |
| Seal Type | See variant options |
| Compatible Housings | UCP, UCF, UCFL, UCFC series |
| Operating Temperature | See variant options |
| Packing Quantity | 1 pcs per order (default) |
Match the bore size to your shaft diameter. UC201 fits a 12mm shaft, UC202 fits 15mm, UC203 fits 17mm, and so on up to UC216 for an 80mm shaft. Always verify your shaft's actual measured diameter before ordering, as worn shafts may be slightly undersized.
Yes. The spherical outer surface of UC series inserts allows for angular misalignment of typically 2–3°. This makes them suitable for applications where the shaft and housing are not perfectly aligned, such as in agricultural equipment or fabricated steel frames.
Standard UC bearing inserts are made from bearing-grade steel and are suitable for dry or lightly humid indoor environments. For outdoor, washdown, or corrosive environments, consider stainless steel variants or ensure adequate sealing and re-lubrication intervals.
Yes. These UC series inserts are designed to be compatible with standard UCP (pillow block), UCF (4-bolt flange), UCFL (2-bolt flange), and UCFC (cartridge) housings. Always confirm the housing bore matches the insert's outer diameter for your specific size.
These inserts are pre-greased and self-lubricating for standard duty cycles. In high-load, high-speed, or high-temperature applications, supplemental lubrication via the grease fitting port is recommended. Re-lubrication intervals depend on operating conditions — consult your equipment's maintenance schedule for guidance.
The number after UC indicates the bore size series: UC201 = 12mm bore, UC204 = 20mm bore. Choose based on your shaft diameter. Larger bore sizes (UC208 and above) are typically used in heavier industrial applications with higher radial loads, while smaller sizes (UC201–UC204) suit lighter-duty or compact machinery.
Yes, UC series inserts are an industry-standard design and are generally interchangeable across manufacturers for the same size designation. Verify the bore diameter, outer diameter, and width match your existing bearing before installing as a replacement.
