Custom UCT Series Pillow Block Ball Bearings Manufacturers, Factory

UCT Series

The UCT Series Pillow Block Ball Bearings, often referred to as take-up unit bearings, consist of a precision-machined UCT type cast iron housing and a GCR15 chrome steel insert bearing with a spherical outer diameter. This specific configuration is engineered to facilitate tension adjustment and shaft alignment within mechanical systems. The housing features a sliding slot on its sides, allowing the entire unit to move along a frame or rail. This design is fundamentally used for maintaining belt tension or adjusting the center distance of rotating shafts in conveyor systems and power transmission assemblies.

Send inquiry

Core Technical Advantages

Structural Tensioning Capability: The integrated frame-slide design allows for linear adjustment, ensuring consistent belt or chain tension without requiring complete system disassembly.
Self-Aligning Geometry: The internal UC series insert bearing features a spherical outer ring that matches the concave bore of the housing, compensating for minor shaft misalignments or mounting inaccuracies.
Dynamic Load Management: Manufactured using high-carbon chromium bearing steel, the internal races and balls provide consistent load distribution under varying rotational speeds.
Sealing and Lubrication Efficiency: Equipped with a standard grease nipple and a multi-lip seal system, the unit prevents the ingress of dust and moisture while retaining lubricant for extended service intervals.

Common Industrial Application Scenarios

Conveyor Tensioning Systems: Used at the tail end of belt conveyors to adjust belt stretch and prevent slippage during material transport.
Agricultural Machinery: Employed in harvesters and grain elevators where shaft positioning must be calibrated for different crop types.
Textile and Packaging Lines: Integrated into machinery requiring precise tracking of belts and chains in high-speed production environments.
Industrial Fans and Blowers: Facilitates the alignment of belt-driven motor assemblies to minimize vibration and power loss.

Installation and Maintenance Protocol

Alignment Verification: Ensure the sliding tracks are parallel and free of debris before mounting the UCT housing to prevent binding during adjustment.
Torque Calibration: Set screws must be tightened to the specified torque values to prevent shaft slippage without causing inner ring deformation.
Lubrication Frequency: Under standard operating temperatures ( -20°C to +100°C), grease should be replenished based on operational hours and environmental dust levels.
Storage Conditions: Units should be stored in a dry, temperature-controlled environment within their original anti-rust packaging to prevent atmospheric corrosion of the bearing surfaces.

Model	Size（mm）																Bearing Type	House Type	Weight (with seat)
Model	d	N1	L2	H2	N2	N	L3	A1	H1	H	L	A2	A	L1	B	S	Bearing Type	House Type	(Kg)
UCT204	20	16	10	51	32	19	51	12	76	89	94	21	32	61	31	12.7	UC204	T204	0.8
UCT205	25	16	10	51	32	19	51	12	76	89	97	24	32	62	34.1	14.3	UC205	T205	0.9
UCT206	30	16	10	56	37	22	57	12	89	102	113	28	37	70	38.1	15.9	UC206	T206	1.3
UCT207	35	16	13	64	37	22	64	12	89	102	129	30	37	78	42.9	17.5	UC207	T207	1.7
UCT208	40	19	16	83	49	29	83	16	102	114	144	33	49	88	49.2	19	UC208	T208	2.3
UCT209	45	19	16	83	49	29	83	16	102	117	144	35	49	87	49.2	19	UC209	T209	2.4
UCT210	50	19	16	83	49	29	86	16	102	117	149	37	49	90	51.6	19	UC210	T210	2.5
UCT211	55	25	19	102	64	35	95	22	130	146	171	38	64	106	55.6	22.2	UC211	T211	3.8
UCT212	60	32	19	102	64	35	102	22	130	146	194	42	64	119	65.1	25.4	UC212	T212	4.7
UCT213	65	32	21	111	70	41	121	26	151	167	224	44	70	137	65.1	25.4	UC213	T213	7
UCT214	70	32	21	111	70	41	121	26	151	167	224	46	70	137	74.6	30.2	UC214	T214	7.3
UCT215	75	32	21	111	70	41	121	26	151	167	232	48	70	140	77.8	33.3	UC215	T215	7.7
UCT216	80	32	21	111	70	41	121	26	165	184	235	51	70	140	82.6	33.3	UC216	T216	8.4
UCT217	85	38	29	124	73	48	157	30	173	198	260	54	73	162	85.7	34.1	UC217	T217	11

UCT Series

Core Technical Advantages

Common Industrial Application Scenarios

Installation and Maintenance Protocol

Submit feedback