The Ultimate Guide to Pillow Block Bearings: What They Are, Differences, and How to Choose the Right One

Bearings are essential components in various mechanical systems, playing a vital role in reducing friction, supporting loads, and ensuring smooth motion. Among the many types of bearings, pillow block bearings stand out due to their versatility, durability, and ease of installation. In this comprehensive guide, we will explore what pillow block bearings are, the differences between pillow block and flange block bearings, and how to select the right pillow block bearing for your application.

1. What is a Pillow Block Bearing?

A pillow block bearing is a mounted bearing that supports a rotating shaft. The bearing itself is housed in a block that is mounted on a surface, making it ideal for installations where the bearing needs to support heavy loads or where alignment is critical. This bearing type is commonly used in a variety of industries, including automotive, industrial machinery, and agricultural equipment.

The pillow block housing is designed to fit the bearing and typically features a bearing insert (often ball bearings or roller bearings) with a shaft. The housing provides support for the bearing and helps keep it in place, reducing the risk of misalignment or vibration. This design makes it easier to replace or maintain the bearing when needed.

For more detailed information on pillow block bearings, you can refer to the BYWB Bearing .

Advantages of Pillow Block Bearings:

• Ease of Installation: Pillow block bearings come pre-assembled, which reduces installation time and cost.
• Alignment Flexibility: The bearing housing allows for some alignment adjustments during installation, ensuring better performance.
• Durability: Pillow block bearings are known for their robust construction and ability to handle high loads and harsh environments.

2. What is the Difference Between a Pillow Block and a Flange Block?

Both pillow block and flange block bearings are types of mounted bearings designed to support rotating shafts. However, there are distinct differences between the two that can impact which one is suitable for a particular application.

Pillow Block Bearings:

• Shape and Design: As the name suggests, pillow block bearings are housed in a “pillow” shaped block, which has a flat bottom for mounting on a horizontal surface.
• Mounting: Pillow block bearings typically have a set of mounting bolts and can be fixed with ease onto machinery or structures.
• Application: These bearings are ideal for applications where the bearing is mounted on a horizontal surface, such as conveyor systems, motors, and HVAC equipment.

Flange Block Bearings:

• Shape and Design: Flange block bearings, on the other hand, feature a housing with a flange that extends out from the bearing. This design allows for easy mounting to a vertical surface or a flange on the shaft.
• Mounting: Flange bearings are often mounted on a vertical plane and feature four or more bolt holes around the flange to secure the bearing.
• Application: Flange bearings are frequently used in applications where vertical mounting or a more compact bearing is needed, such as in gearboxes or smaller motors.

For more on the differences, check out this article from https://bywbbearing.com/.

Key Differences:

• Mounting Orientation: Pillow block bearings are typically mounted on horizontal surfaces, while flange block bearings are designed for vertical mounting.
• Space Considerations: Flange block bearings may be more compact, with a flanged housing that can be more convenient for tight spaces.

3. How to Select the Right Pillow Block Bearing?

Choosing the right pillow block bearing for your application is crucial for ensuring optimal performance, longevity, and safety. Several factors need to be considered before making a selection.

3.1. Load and Speed Requirements

The bearing’s load capacity and the speed at which it will operate are critical factors to consider. Make sure that the pillow block bearing you choose can handle the dynamic and static loads without causing damage or premature wear. Additionally, high-speed applications may require bearings with specific features, such as high-speed ball bearings.

3.2. Shaft Size

The pillow block bearing you select must match the size of the shaft it will support. Bearing inserts come in various bore sizes, so it’s essential to choose the correct size for your shaft to ensure proper fit and function. Always check the manufacturer’s specifications for compatible shaft sizes.

3.3. Environmental Conditions

Consider the environment in which the bearing will operate. For example, if the bearing is exposed to moisture, dust, or chemicals, you may need a bearing with seals or special coatings to protect it from contaminants. Some pillow block bearings are designed for heavy-duty environments and can tolerate extreme temperatures, high humidity, or even underwater conditions.

3.4. Insert Bearing Type

Pillow block bearings come in different insert bearing types, such as ball bearings and roller bearings. Ball bearings are typically used for low-speed, light-load applications, while roller bearings are more suitable for heavy loads and higher speeds. Consider which type best matches your needs.

3.5. Material Selection

The material of the bearing housing and insert is also important. Common materials for pillow block bearings include cast iron, stainless steel, and thermoplastic. The material should be chosen based on the application’s load requirements, environmental conditions, and desired lifespan. For corrosive or high-temperature applications, stainless steel pillow block bearings might be the best option.

3.6. Mounting and Alignment

Pillow block bearings come with various mounting options, such as bolt holes or slots, and can be adjusted for alignment during installation. Ensure that the bearing housing allows for easy mounting and proper alignment with the shaft to reduce the risk of premature wear or failure.

For a more detailed look at selecting the right pillow block bearing, check out this guide from https://bywbbearing.com/.

Quick Tips for Selection:

• Choose a bearing that can withstand the expected load and speed.
• Ensure that the bearing matches the shaft size.
• Consider environmental factors and choose a suitable material.
• Select the correct bearing type for your application.

4.Pillow Block Bearing Material Types and Applications

The material used in pillow block bearings plays a significant role in determining their performance, durability, and suitability for specific applications. The choice of material influences the bearing’s resistance to wear, its load-bearing capacity, and its ability to withstand extreme environmental conditions such as high temperatures, moisture, or corrosive substances.

4.1. Cast Iron Pillow Block Bearings

Material: Cast iron is one of the most common materials used for the housing of pillow block bearings. It is durable, cost-effective, and offers excellent strength and wear resistance. Cast iron also has superior damping properties, which help reduce vibrations.

Applications:

• Industrial machinery: Cast iron pillow block bearings are widely used in heavy-duty industrial applications, such as conveyor systems, motor-driven machines, and pumps.
• Agricultural equipment: These bearings are also ideal for agricultural machinery that operates under high loads and dusty or harsh environments.

Advantages:

• High strength and durability
• Good vibration damping
• Cost-effective for standard applications

4.2. Stainless Steel Pillow Block Bearings

Material: Stainless steel pillow block bearings are used when a higher level of corrosion resistance is required. Stainless steel is resistant to rust, moisture, and many chemicals, making it ideal for use in harsh environments.

Applications:

• Food processing: Stainless steel pillow block bearings are commonly used in the food and beverage industry, where hygiene and resistance to corrosion are paramount.
• Pharmaceuticals: These bearings are used in pharmaceutical equipment that requires frequent cleaning and resistance to contamination.
• Marine applications: Stainless steel bearings are suitable for use in marine environments due to their resistance to saltwater corrosion.

Advantages:

• Excellent corrosion resistance
• Suitable for high-hygiene environments
• Ideal for use in harsh or marine environments

4.3. Thermoplastic Pillow Block Bearings

Material: Thermoplastic pillow block bearings are made from advanced plastic polymers, such as nylon or acetal. These materials are lightweight, resistant to chemicals, and provide self-lubricating properties, reducing the need for external lubrication.

Applications:

• Light-duty machinery: These bearings are perfect for light-load applications where weight reduction and corrosion resistance are key factors.
• Packaging machinery: Thermoplastic pillow block bearings are used in packaging systems, especially those that require frequent movement and minimal lubrication.
• Electronics: In some cases, thermoplastic bearings are used in sensitive electronic equipment due to their non-conductive properties.

Advantages:

• Lightweight and resistant to corrosion
• Self-lubricating properties reduce maintenance
• Suitable for light-duty applications

4.4. Aluminum Pillow Block Bearings

Material: Aluminum pillow block bearings are lightweight and resistant to corrosion. While they don’t offer the same load-bearing capacity as cast iron or steel, aluminum is ideal for applications where weight is a critical factor.

Applications:

• Robotics and automation: The low weight of aluminum pillow block bearings makes them perfect for use in robotic arms and automation equipment, where weight reduction is essential.
• Transportation equipment: These bearings are used in certain transportation machinery, including conveyor belts and small motors, where weight is an important consideration.

Advantages:

• Lightweight and resistant to corrosion
• Suitable for lightweight applications
• Provides better performance in non-heavy-duty environments

4.5. Bronze Pillow Block Bearings

Material: Bronze pillow block bearings are designed for high-load, high-temperature applications. Bronze is a copper alloy that offers excellent wear resistance, particularly in dry and heavy-duty applications where lubrication may be limited.

Applications:

• Heavy industrial machinery: Bronze pillow block bearings are often used in mining, construction, and heavy equipment industries due to their ability to withstand extreme loads and temperatures.
• High-temperature environments: These bearings are ideal for use in furnace or engine components where other materials may fail due to heat.

Advantages:

• High load-bearing capacity
• Excellent wear resistance in heavy-duty applications
• Performs well in high-temperature environments

5. Choosing the Right Material for Your Application

The material of a pillow block bearing should be selected based on the specific requirements of the application, including:

• Load capacity: Heavier loads generally require materials like cast iron, steel, or bronze.
• Operating environment: If the bearing is exposed to moisture, chemicals, or high temperatures, materials like stainless steel or bronze may be the best options.
• Weight considerations: For lighter-duty applications or where weight reduction is important, thermoplastic or aluminum bearings may be ideal.

Quick Material Comparison:

Material	Strength	Corrosion Resistance	Temperature Resistance	Best For
Cast Iron	High	Moderate	Moderate	Heavy industrial applications
Stainless Steel	Moderate	Excellent	High	Marine, food processing, pharmaceuticals
Thermoplastic	Low	Good	Low	Light-duty machinery, packaging
Aluminum	Moderate	Good	Moderate	Robotics, transportation, automation
Bronze	High	Excellent	Very High	High-load, high-temperature environments

 6.Pillow block bearing size chart

Unit No.	Shaft Dia		Dimensions (mm)											Bolt Size	Weight
	d		H	L	J	A	N	N1	H1	Ho	B	S	A3	(mm)	(kg)
	(in)	(mm)
UCP201		12.00	30.2	125	95	32	13	18	13	57	27.4	11.5	–	M10	0.72
UCP202		15.00	30.2	125	95	32	13	18	13	57	27.4	11.5	–	M10	0.66
UCP203		17.00	30.2	125	95	32	13	18	13	57	27.4	11.5	–	M10	0.66
UCP201		12.00	30.2	127	95	38	13	19	14	61	31	12.7	–	M10	0.76
UCP201-8	1/2 ‘		30.2	127	95	38	13	19	14	61	31	12.7	–	M10	0.76
UCP202		15.00	30.2	127	95	38	13	19	14	61	31	12.7	–	M10	0.74
UCP202-9	9/16 ‘		30.2	127	95	38	13	19	14	61	31	12.7	–	M10	0.74
UCP202-10	5/8 ‘		30.2	127	95	38	13	19	14	61	31	12.7	–	M10	0.74
UCP203		17.00	30.2	127	95	38	13	19	14	61	31	12.7	–	M10	0.72
UCP203-11	11/16 ‘		30.2	127	95	38	13	19	14	61	31	12.7	–	M10	0.72
UCP204		20.00	33.3	127	95	38	13	19	14	64	31	12.7	46.4	M10	0.7
UCP204-12	45720.00		33.3	127	95	38	13	19	14	64	31	12.7	46.4	M10	0.7
UCP205		25.00	36.5	140	105	38	13	19	15	71	34.1	14.3	48	M10	0.76
UCP205-14	3/4 ‘		36.5	140	105	38	13	19	15	71	34.1	14.3	48	M10	0.76
UCP205-15	15/16 ‘		36.5	140	105	38	13	19	15	71	34.1	14.3	48	M10	0.76
UCP205-16	1′		36.5	140	105	38	13	19	15	71	34.1	14.3	48	M10	0.76
UCP206		30.00	42.9	160	121	44	17	21	16	82	38.1	15.9	52	M14	1.25
UCP206-17	1-1/16′		42.9	160	121	44	17	21	16	82	38.1	15.9	52	M14	1.25
UCP206-18	1-1/8′		42.9	160	121	44	17	21	16	82	38.1	15.9	52	M14	1.25
UCP206-19	1-3/16′		42.9	160	121	44	17	21	16	82	38.1	15.9	52	M14	1.25
UCP206-20	1-1/4′		42.9	160	121	44	17	21	16	82	38.1	15.9	52	M14	1.25
UCP207		35.00	47.6	167	126	48	17	21	17	92	42.9	17.5	59	M14	1.55
UCP207-20	1-1/4′		47.6	167	126	48	17	21	17	92	42.9	17.5	59	M14	1.55
UCP207-21	1-5/16′		47.6	167	126	48	17	21	17	92	42.9	17.5	59	M14	1.55
UCP207-22	1-3/8′		47.6	167	126	48	17	21	17	92	42.9	17.5	59	M14	1.55
UCP207-23	1-7/16′		47.6	167	126	48	17	21	17	92	42.9	17.5	59	M14	1.55
UCP208		40.00	49.2	180	137	52	17	21	18	99	49.2	19	68.2	M14	1.9
UCP208-24	1-1/2′		49.2	180	137	52	17	21	18	99	49.2	19	68.2	M14	1.9
UCP208-25	1-9/16′		49.2	180	137	52	17	21	18	99	49.2	19	68.2	M14	1.9
UCP209		45.00	54	190	146	54	17	21	20	106	49.2	19	70	M14	2.2
UCP209-26	1-5/8′		54	190	146	54	17	21	20	106	49.2	19	70	M14	2.2
UCP209-27	1-11/16′		54	190	146	54	17	21	20	106	49.2	19	70	M14	2.2
UCP209-28	1-3/4′		54	190	146	54	17	21	20	106	49.2	19	70	M14	2.2
UCP210		50.00	57.2	206	159	60	20	25	21	114	51.6	19	76	M16	2.75
UCP210-30	1-7/8′		57.2	206	159	60	20	25	21	114	51.6	19	76	M16	2.75
UCP210-31	1-15/16′		57.2	206	159	60	20	25	21	114	51.6	19	76	M16	2.75
UCP210-32	2′		57.2	206	159	60	20	25	21	114	51.6	19	76	M16	2.75
UCP211		55.00	63.5	217	172	60	20	25	23	125	55.6	22.2	76	M16	3.3
UCP211-32	2′		63.5	217	172	60	20	25	23	125	55.6	22.2	76	M16	3.3
UCP211-34	2-1/8′		63.5	217	172	60	20	25	23	125	55.6	22.2	76	M16	3.3
UCP211-35	2-3/16′		63.5	217	172	60	20	25	23	125	55.6	22.2	76	M16	3.3
UCP212		60.00	69.9	238	186	70	20	25	24	137	65.1	25.4	89	M16	4.7
UCP212-36	2-1/4′		69.9	238	186	70	20	25	24	137	65.1	25.4	89	M16	4.7
UCP212-38	2-3/8′		69.9	238	186	70	20	25	24	137	65.1	25.4	89	M16	4.7
UCP212-39	2-7/16′		69.9	238	186	70	20	25	24	137	65.1	25.4	89	M16	4.7
UCP213		65.00	76.2	262	203	70	25	30	26	149	65.1	25.4	89	M20	5.6
UCP213-40	2-1/2′		76.2	262	203	70	25	30	26	149	65.1	25.4	89	M20	5.6
UCP214		70.00	79.4	266	210	72	25	30	27	155	74.6	30.2	98	M20	6.6
UCP214-44	2-3/4′		79.4	266	210	72	25	30	27	155	74.6	30.2	98	M20	6.6
UCP215		75.00	82.6	274	217	74	25	30	28	162	77.8	33.3	97	M20	7.3
UCP215-47	2-15/16 ‘		82.6	274	217	74	25	30	28	162	77.8	33.3	97	M20	7.3
UCP215-48	3′		82.6	274	217	74	25	30	28	162	77.8	33.3	97	M20	7.3
UCP216		80.00	88.9	292	232	78	25	30	30	174	82.6	33.3	110	M20	9
UCP217		85.00	95.2	310	247	83	25	28	32	186	85.7	34.1	114.2	M20	10.8
UCP217-52	3-1/4′		95.2	310	247	83	25	28	32	186	85.7	34.1	114.2	M20	10.8
UCP218		90.00	101.6	326	262	88	27	30	33	198	96	39.7	124	M22	13
UCP218-56	3-1/2′		101.6	326	262	88	27	30	33	198	96	39.7	124	M22	13
UCP220		100.00	115	380	305	95	30	36	40	225	108	42	–	M24	16

Unit No.	Shaft Dia		Dimensions(mm)											Bolt Size (mm)	Weight (kg)
	d		H	J	A2	A1	A	N	L	B	s	z	A3
	(in)	(mm)
UCFL201		12	113	90	15	11	25.5	12	60	31	12.7	33.3	–	M10	0.51
UCFL201-8	1/2′		113	90	15	11	25.5	12	60	31	12.7	33.3	–	M10	0.51
UCFL202		15	113	90	15	11	25.5	12	60	31	12.7	33.3	–	M10	0.51
UCFL202-9	9/16′		113	90	15	11	25.5	12	60	31	12.7	33.3	–	M10	0.51
UCFL202-10	5/8′		113	90	15	11	25.5	12	60	31	12.7	33.3	–	M10	0.51
UCFL203		17	113	90	15	11	25.5	12	60	31	12.7	33.3	–	M10	0.51
UCFL203-11	11/16′		113	90	15	11	25.5	12	60	31	12.7	33.3	–	M10	0.51
UCFL204		20	113	90	15	11	25.5	12	60	31	12.7	33.3	38.2	M10	0.51
UCFL204-12	3/4′		113	90	15	11	25.5	12	60	31	12.7	33.3	38.2	M10	0.51
UCFL205		25	130	99	16	13	27	16	68	34.1	14.3	35.8	40	M14	0.6
UCFL205-14	7/8′		130	99	16	13	27	16	68	34.1	14.3	35.8	40	M14	0.6
UCFL205-15	15/16′		130	99	16	13	27	16	68	34.1	14.3	35.8	40	M14	0.6
UCFL205-16	1′		130	99	16	13	27	16	68	34.1	14.3	35.8	40	M14	0.6
UCFL206		30	148	117	18	13	31	16	80	38.1	15.9	40.2	44	M14	0.9
UCFL206-17	1-1/16′		148	117	18	13	31	16	80	38.1	15.9	40.2	44	M14	0.9
UCFL206-18	1-1/8 ‘		148	117	18	13	31	16	80	38.1	15.9	40.2	44	M14	0.9
UCFL206-19	1-3/16 ‘		148	117	18	13	31	16	80	38.1	15.9	40.2	44	M14	0.9
UCFL206-20	1 1/4′		148	117	18	13	31	16	80	38.1	15.9	40.2	44	M14	0.9
UCFL207		35	160	130	19	15	34	16	90	42.9	17.5	44.4	48.5	M14	1.2
UCFL207-20	1-1/4 ‘		160	130	19	15	34	16	90	42.9	17.5	44.4	48.5	M14	1.2
UCFL207-21	1-5/16 ‘		160	130	19	15	34	16	90	42.9	17.5	44.4	48.5	M14	1.2
UCFL207-22	1-3/8 ‘		160	130	19	15	34	16	90	42.9	17.5	44.4	48.5	M14	1.2
UCFL207-23	1 7/16′		160	130	19	15	34	16	90	42.9	17.5	44.4	48.5	M14	1.2
UCFL208		40	175	144	21	15	36	16	100	49.2	19	51.2	55.1	M14	1.5
UCFL208-24	1-1/2 ‘		175	144	21	15	36	16	100	49.2	19	51.2	55.1	M14	1.5
UCFL208-25	1 9/16′		175	144	21	15	36	16	100	49.2	19	51.2	55.1	M14	1.5
UCFL209		45	188	148	22	16	38	19	108	49.2	19	52.2	57	M16	1.9
UCFL209-26	1-5/8 ‘		188	148	22	16	38	19	108	49.2	19	52.2	57	M16	1.9
UCFL209-27	1-11/16 ‘		188	148	22	16	38	19	108	49.2	19	52.2	57	M16	1.9
UCFL209-28	1 3/4′		188	148	22	16	38	19	108	49.2	19	52.2	57	M16	1.9
UCFL210		50	197	157	22	16	40	19	115	51.6	19	54.6	60	M16	2.2
UCFL210-30	1-7/8 ‘		197	157	22	16	40	19	115	51.6	19	54.6	60	M16	2.2
UCFL210-31	1-15/16 ‘		197	157	22	16	40	19	115	51.6	19	54.6	60	M16	2.2
UCFL210-32	2′		197	157	22	16	40	19	115	51.6	19	54.6	60	M16	2.2
UCFL211		55	224	184	25	18	43	19	125	55.6	22.2	58.4	63	M16	3
UCFL211-32	2′		224	184	25	18	43	19	125	55.6	22.2	58.4	63	M16	3
UCFL211-34	2-1/8 ‘		224	184	25	18	43	19	125	55.6	22.2	58.4	63	M16	3
UCFL211-35	2 3/16′		224	184	25	18	43	19	125	55.6	22.2	58.4	63	M16	3
UCFL212		60	250	202	29	18	48	23	140	65.1	25.4	68.7	73.5	M20	4
UCFL212-36	2-1/4 ‘		250	202	29	18	48	23	140	65.1	25.4	68.7	73.5	M20	4
UCFL212-38	2-3/8 ‘		250	202	29	18	48	23	140	65.1	25.4	68.7	73.5	M20	4
UCFL212-39	2 7/16′		250	202	29	18	48	23	140	65.1	25.4	68.7	73.5	M20	4
UCFL213		65	258	210	30	22	50	23	155	65.1	25.4	69.7	74.5	M20	5
UCFL213-40	2 1/2′		258	210	30	22	50	23	155	65.1	25.4	69.7	74.5	M20	5
UCFL214		70	265	216	31	22	54	23	160	74.6	30.2	75.4	80	M20	5.6
UCFL214-44	2 3/4′		265	216	31	22	54	23	160	74.6	30.2	75.4	80	M20	5.6
UCFL215		75	275	225	34	22	56	23	165	77.8	33.3	78.5	82.5	M20	6.2
UCFL215-47	2-15/16 ‘		275	225	34	22	56	23	165	77.8	33.3	78.5	82.5	M20	6.2
UCFL215-48	3′		275	225	34	22	56	23	165	77.8	33.3	78.5	82.5	M20	6.2
UCFL216		80	290	233	34	22	58	25	180	82.6	33.3	83.3	89	M22	7.8
UCFL217		85	305	248	36	24	63	25	190	85.7	34.1	87.6	93.1	M22	9.8
UCFL217-52	3 1/4′		305	248	36	24	63	25	190	85.7	34.1	87.6	93.1	M22	9.8
UCFL218		90	320	265	40	24	68	25	205	96	39.7	96.3	102	M22	12.4
UCFL218-56	3 1/2′		320	265	40	24	68	25	205	96	39.7	96.3	102	M22	12.4

Bearing No.	Shaft Dia		Dimensions (mm)								Bolt Size	Weight (kg)
	d		L	J	A2	A1	A	E	N	S
	(in.)	(mm)
UCF201		12	76	54	15	11	25.5	30.9	11.5	13.9	M10	0.5
UCF201-8	1/2′
UCF202		15
UCF202-10	5/8′
UCF203		17
UCF203-11	11/16′
UCF204-12	3/4′		86	64	15	11	25.5	33.3	11.5	17	M10	0.63
UCF204		20
UCF205-14	7/8′		95	70	16	13	27	35.8	11.5	17.4	M10	0.8
UCF205-15	15/16′
UCF205		25
UCF205-16	1′
UCF206-18	1 1/8′		108	83	18	13	31	40.2	11.5	18.2	M10	1.2
UCF206		30
UCF206-19	1 3/16′
UCF206-20	1 1/4′
UCF207-20	1 1/4′		117	92	17	15	34	44.4	14	18.8	M12	1.6
UCF207-21	1 5/16′
UCF207-22	1 3/8′
UCF207		35
UCF207-23	1 7/16′
UCF208-24	1 1/2′		130	102	21	15	36	51.2	14	21.4	M12	1.9
UCF208-25	1 9/16′
UCF208		40
UCF209-26	1 5/8′		137	105	22	16	38	52.2	16	21.4	M14	2.3
UCF209-27	1 11/16′
UCF209-28	1 3/4′
UCF209		45
UCF210-30	1 7/8′		143	111	22	16	40	54.6	18	24.6	M16	2.6
UCF210-31	1-15/16′
UCF210		50
UCF211-32	2′		162	130	25	18	43	58.4	18	27.7	M16	3.8
UCF211-34	2 1/8′
UCF211		55
UCF211-35	2 3/16′
UCF212-36	2 1/4′		175	143	29	18	48	68.7	18	30.9	M16	4.8
UCF212		60
UCF212-38	2 3/8′
UCF212-39	2 7/16′
UCF213-40	2 1/2′		187	149	30	22	50	69.7	18	34.1	M16	6
UCF213		65
UCF214-44	2 3/4′		193	152	31	22	54	75.4	18	34.1	M16	6.3
UCF214		70
UCF215		75	200	159	34	22	56	78.5	18	37.3	M16	7.2
UCF215-48	3′
UCF216		80	208	165	34	22	57	83.3	22	37.3	M20	7.23
UCF217-52	3 1/4′	85	220	175	36	24	63	87.6	23	34.1	M20	8.9
UCF217
UCF218-56	3 1/2′	90	235	187	40	25	68	96.3	23	39.7	M20	11.6
UCF218

7. Conclusion

Pillow block bearings are essential components in many mechanical systems, offering robust support for rotating shafts in various industries. Understanding what pillow block bearings are, how they differ from flange block bearings, and how to select the right one for your application can ensure optimal performance and longevity of your equipment.

When choosing a pillow block bearing, be sure to consider factors such as load capacity, speed, shaft size, environmental conditions, and material selection. By taking the time to carefully evaluate your needs,you can select the perfect bearing to meet the demands of your specific application.
For more detailed information or to find high-quality pillow block bearings, check out the products and services offered by BYWB Bearing. We provide durable, reliable, and high-performance bearings that can withstand the toughest conditions.