UCP 320-Pillow Block Ball Bearing Unit

UCP 320-Pillow Block Ball Bearing Unit

Pillow block ball bearing units are versatile components used across a wide range of industrial applications. They are commonly found in manufacturing equipment, such as conveyors, where they support rotating shafts and ensure smooth operation. In agricultural machinery, these units help in the efficient functioning of various farm equipment, from harvesters to irrigation systems. They are also crucial in the automotive industry, where they support components like axle shafts and drive systems. Other notable applications include textile machinery, where they maintain consistent performance under high-speed conditions, and in the mining industry, where they support heavy-duty equipment that operates in harsh environments. Their adaptability and reliability make them indispensable in any setting where rotational movement is essential.
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Product Introduction
Compliance with standard

JIS

Purpose specific

For material handling applications

Material, housing

Cast iron

Sealing, bearing

Seal and flinger on both sides

Sealing type, bearing

Contact, standard

Sealing, unit

Without

Coating

Without

Dimensions - UCP 320Dimensions - UCP 320Dimensions - UCP 320

Dimensions

d

100 mm

Bore diameter
d1

≈135.5 mm

Shoulder diameter of inner ring
A

107 mm

Base width
A1

71 mm

Top width
B

108 mm

Width of inner ring
B4

18 mm

Distance from locking device side face to thread centre
H

140 mm

Height of spherical seat centre
H1

55 mm

Foot height
H2

283 mm

Overall height
J

380.5 mm

Distance between attachment bolts
J

max.394 mm

Distance between attachment bolts
J

min.367 mm

Distance between attachment bolts
L

482 mm

Overall length
N

36 mm

Diameter of attachment bolt hole
N1

49.5 mm

Length of attachment bolt hole
s1

66 mm

Distance from locking device side face to raceway centre
Threaded hole
RG

1/8-27 NPT

Housing thread for the grease fitting
R1

14 mm

Axial position of the housing thread
Rα

45 °

Angular position of the housing thread
Grease fitting
DN

6.589 mm

Diameter of head sphere of grease fitting
SWN

11.11 mm

Hexagonal key size for the grease fitting
GN

1/8-27 NPT

Thread of grease fitting

Calculation data

Basic dynamic load rating C

174 kN

Basic static load rating C0

140 kN

Fatigue load limit Pu

4.75 kN

Limiting speed  

1 700 r/min

   

Limiting speed with shaft tolerance h6

Mounting information

Set screw G2

M16x1.5

Hexagonal key size for set screw  

8 mm

Recommended tightening torque for set screw  

50 N·m

Recommended diameter for attachment bolts, mm G

30 mm

Recommended diameter for attachment bolts, inch G

1.125 in

 

Characteristics of Pillow Block Ball Bearing Units

Pillow block ball bearing units are robust mechanical components designed to support shafts and facilitate smooth rotational movement. At their core, these units consist of a bearing housed within a solid mounting block, which is often made from cast iron or steel. This block has a distinct shape that allows for easy mounting on a flat surface, hence the name "pillow block." The bearing itself is typically a deep groove ball bearing, which provides high radial and moderate axial load-carrying capabilities. The pillow block design includes features like a sealed or shielded bearing to prevent contamination from dirt and moisture, as well as to retain lubrication. The units come with pre-drilled holes for mounting, making installation straightforward. Additionally, many pillow block units feature self-aligning capabilities, which compensate for minor shaft misalignments and reduce the risk of premature bearing failure.

Applications of Pillow Block Ball Bearing Units

Pillow block ball bearing units are versatile components used across a wide range of industrial applications. They are commonly found in manufacturing equipment, such as conveyors, where they support rotating shafts and ensure smooth operation. In agricultural machinery, these units help in the efficient functioning of various farm equipment, from harvesters to irrigation systems. They are also crucial in the automotive industry, where they support components like axle shafts and drive systems. Other notable applications include textile machinery, where they maintain consistent performance under high-speed conditions, and in the mining industry, where they support heavy-duty equipment that operates in harsh environments. Their adaptability and reliability make them indispensable in any setting where rotational movement is essential.
 

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