UE series Insert Ball Bearings

UE series insert ball bearings (also called outer spherical ball bearings) are heavy-duty radial bearings with a wide inner ring and set screw locking. Featuring superior self-aligning ability and high rigidity, these pillow block bearings ensure long-term stable operation for heavy-load transmission equipment

Classification :

Pillow Block Bearings

Keywords :

UE series insert ball bearing, UE type bearing, outer spherical ball bearing, pillow block bearing, heavy duty insert ball bearing, self-aligning bearing, UE bearing manufacturer, high rigidity bearing, agricultural machinery bearing, conveyor belt bearin

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UE Series Insert Ball Bearings

🎯 Extended Inner Ring & Stable Locking

UE series insert ball bearings feature an extended inner ring design for enhanced support and concentricity. Combined with a set screw locking system, they provide firm shaft connection, reduce slippage, and maintain stable running even under fluctuating loads and high-speed conditions.

⚙️ High Precision & Durable Sealing

Manufactured from high-quality bearing steel with optimized internal clearance, UE series bearings deliver low friction, quiet operation and strong wear resistance. Equipped with multi-labyrinth seals, they effectively block dust, moisture and contaminants, ensuring long service life in harsh working environments.

🛠️ Versatile Matching & Applications

Widely used as replacement inserts for UCP, UCF, UCFL, UCT and other housing units. Suitable for conveyors, agricultural machinery, food processing equipment, fans, pumps, textile machines and general light to medium‑duty transmission systems requiring reliable insert bearings.

Bearing Number	Dimensions（mm）
UE201/YA	12×40×28.6×15
UE202/YA	15×40×28.6×15
UE203	17×40×28.6×13
UE203/YA	17×40×28.6×15
UE204	20×47×31×15
UE204/YA	20×47×31×17
UE205	25×52×31×15
UE205/YA	25×52×31×17
UE206	30×62×35.7×18
UE206/YA	30×62×35.7×19
UE207	35×72×38.9×19
UE207/YA	35×72×38.9×20
UE208	40×80×43.7×22
UE208/YA	40×80×43.7×21
UE209	45×85×43.7×22
UE210	50×90×43.7×22
UE211	55×100×48.4×25
UE212	60×110×53.1×27
UEL201	12×40×37.3×15
UEL202	15×40×37.3×15
UEL203	17×40×37.3×15
UEL204	20×47×43.7×17
UEL205	25×52×44.4×17
UEL206	30×62×48.4×19
UEL207	35×72×51.1×20

Mounted bearings & pillow block bearings - UCP, UCF, UC series with housing, ready-to-use units for industrial machinery

Pillow Block Bearings, also known as housed bearing units, are pre-assembled units combining high-precision insert ball bearings with robust cast iron or stainless steel housings. Designed for easy installation, reliable operation and low maintenance, these units feature excellent self-aligning performance, effective sealing against dust and moisture, and strong load capacity, making them ideal for a wide range of industrial applications.

Core Advantages

Easy & Fast Installation: Pre-assembled units eliminate the need for separate bearing and housing installation, reducing on-site assembly time.
Self-Aligning Performance: Spherical outer diameter of insert bearings automatically compensates for shaft misalignment and mounting errors, ensuring smooth operation.
Superior Sealing: Multi-labyrinth seals effectively block dust, dirt and moisture, extending service life in harsh working environments.
Wide Compatibility: Available in various housing styles (pillow block, flange, take-up) and shaft sizes, suitable for metric and inch shafts.
Low Maintenance: Equipped with grease fittings for convenient relubrication, supporting long-term continuous operation.

Typical Industrial Applications

Widely used in conveyor systems, agricultural machinery, food processing equipment, fans, pumps, packaging machines, textile equipment, mining machinery, and general industrial transmission systems.

We offer a full range of pillow block and mounted bearing units to meet diverse industrial installation and load requirements:

Series	Housing Type	Key Features
UCP Series	Standard Pillow Block (2-bolt)	Most widely used, easy installation, suitable for general industrial machinery, conveyors, fans and pumps
UCT Series	Take-Up Unit (Slotted)	Adjustable housing for belt tensioning, ideal for belt conveyors, textile machinery and packaging lines
UCF Series	Square Flange (4-bolt)	Rigid square flange for side/end mounting, perfect for food processing equipment and automation lines
UCFC Series	Round Flange (4-bolt)	Compact round flange, space-saving, suitable for pumps, fans and light to medium-duty equipment
UCFL Series	Diamond Flange (2-bolt)	Narrow rhombic flange, ideal for limited installation space, small conveyors and agricultural machinery
UCFU Series	Square Flange with Boss	High-precision positioning with raised boss, suitable for precision transmission and automated production lines
NAP Series	Narrow Pillow Block	Slim vertical housing, space-saving, for light-duty conveyors and small mechanical equipment

PRODUCT TESTING

Bearing Forging

Bearing Annealing

Turning Process

Quenching

Bearing Assembly

Bearing Clearance Testing

Grease injection

Bearing Marking

Pillow Block Bearings