UB & SB Series Insert Ball Bearings

Name: UB & SB Series Insert Ball Bearings
Brand: YJZY

UB & SB Series Insert Ball Bearings. UB and SB outer spherical bearings are identical in appearance and dimension with different code names. China factory supplies full range models compatible with standard pillow block housings. Wholesale and OEM available.

Classification :

Pillow Block Bearings

Keywords :

Outer Spherical Bearings,UB & SB Series Insert Ball Bearings,Pillow Block Bearings

+8613561736033

info@jnyjbearing.com

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Key Features of UB & SB Bearings

Same Structure & Size

UB and SB bearings are fully interchangeable, same outer spherical surface, single extended inner ring with two set screws.

Set Screw Locking

Two set screws on inner ring, stable locking on shaft, easy installation and maintenance.

Self-Aligning Function

Spherical outer ring compensates shaft misalignment, reduce operating stress.

Dustproof Seals

Double lip seals keep dust and moisture out, work well in dusty working conditions.

UB Series Insert Bearings Dimensions

Bearing Model	Bore d(mm)	Outer Diameter D(mm)	Width B(mm)	Weight(kg)
UB201	12	40	22	0.14
UB202	15	40	22	0.13
UB203	17	40	22	0.12
UB204	20	47	25	0.18
UB205	25	52	27	0.24
UB206	30	62	30	0.36
UB207	35	72	34	0.56
UB208	40	80	36	0.73

SB Series Insert Bearings Dimensions

Bearing Model	Bore d(mm)	Outer Diameter D(mm)	Width B(mm)	Weight(kg)
SB201	12	40	22	0.14
SB202	15	40	22	0.13
SB203	17	40	22	0.12
SB204	20	47	25	0.18
SB205	25	52	27	0.24
SB206	30	62	30	0.36
SB207	35	72	34	0.56
SB208	40	80	36	0.73

Application Fields

Agricultural Machinery Conveyor Systems Food Machinery Textile Equipment Pillow Block Units General Industrial Transmission

UB and SB insert bearings are widely used for equipment requiring simple shaft mounting, such as farm machines, conveyors and textile machinery. They can replace each other directly.

Our Factory Advantages

Professional bearing manufacturer with 10+ years experience
Full stock of hot selling UB and SB bearing models
Strict quality inspection before shipment
Flexible MOQ for wholesale orders
OEM service including custom marking and packaging

Frequently Asked Questions

Q1: What is the difference between UB bearing and SB bearing?

A1: UB and SB bearings have no difference in appearance, dimension and performance. They are the same insert bearing with different brand / factory code names, fully interchangeable.

Q2: Are UB and SB bearings compatible with standard pillow block housings?

A2: Yes, they have standard outer spherical dimension, and can match all standard pillow block, flange and take-up housings.

Q3: Do you keep stock for UB and SB series bearings?

A3: We maintain inventory for popular UB201 to UB208 and SB201 to SB208 models. For special sizes, we can arrange production.

Q4: Can I use SB bearing to replace UB bearing directly?

A4: Yes, same bore, outer diameter and width. Direct replacement without any modification.

Q5: Can you provide OEM service for UB SB bearings?

A5: Yes, custom logo marking, special packaging are available for bulk wholesale orders.

Get Quotation for UB & SB Bearings

Send us your required bearing model and quantity. We will provide competitive factory price for your wholesale order.

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