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Mounted bearings (also known as insert bearings or bearing units) integrate bearings with housings and are widely used in various industrial equipment. They not only simplify installation and maintenance but also effectively address many common issues in mechanical operations. Below are the main problems that mounted bearings can solve in practical applications.
1. Shaft Misalignment Issues
Problem Description: In mechanical equipment, shaft misalignment can lead to premature bearing wear, increased vibration, and even equipment damage.
Solution: Mounted bearings (especially self-aligning bearings) can compensate for a certain degree of shaft misalignment, reducing additional stress and wear caused by misalignment, thereby extending the lifespan of the bearing and equipment.
2. Space Constraints
Problem Description: Some equipment has limited installation space, and traditional bearing and housing combinations may not meet the requirements of compact designs.
Solution: Mounted bearings are designed to be compact and easy to install, making them ideal for space-constrained applications such as small motors, conveyors, or household appliances.
3. Stability Issues in High-Load and High-Vibration Environments
Problem Description: In heavy machinery or high-vibration environments, ordinary bearings may not withstand high loads or frequent impacts, leading to premature failure.
Solution: Mounted bearings use cast iron or steel housings, which provide high strength and rigidity, enabling them to withstand high loads and vibrations, ensuring stable equipment operation.
4. Contamination and Lubrication Issues
Problem Description: In dusty, humid, or corrosive environments, contaminants can enter the bearing, causing lubrication failure and bearing damage.
Solution: Mounted bearings are typically equipped with seals (such as rubber seals or metal shields) to effectively prevent contaminants from entering and retain lubrication, extending bearing life.
5. Complex Installation and Maintenance
Problem Description: Traditional bearings require high technical expertise and time for installation and maintenance, especially in large equipment.
Solution: Mounted bearings feature a pre-assembled design, making installation quick and easy. Most mounted bearings also have lubrication holes for regular lubrication, reducing maintenance time and costs.
6. Performance Issues in High-Temperature Environments
Problem Description: In high-temperature environments, ordinary bearings may fail due to thermal expansion or lubrication failure.
Solution: Mounted bearings can use high-temperature materials and high-temperature grease to ensure stable operation in high-temperature conditions.
7. Multi-Directional Load Issues
Problem Description: Some equipment needs to withstand both radial and axial loads, which ordinary bearings may not handle effectively.
Solution: Mounted bearings (such as self-aligning ball bearings) can handle both radial and axial loads, making them suitable for complex load environments.
8. Equipment Noise Issues
Problem Description: Noise from bearing operation can affect the working environment or equipment performance.
Solution: Mounted bearings are designed with precision and high-quality materials, ensuring smooth and quiet operation, making them ideal for noise-sensitive applications such as household appliances or office equipment.
9. Frequent Bearing Replacement Issues
Problem Description: In harsh operating conditions, ordinary bearings may fail frequently due to wear or contamination, increasing replacement costs.
Solution: Mounted bearings offer high durability and long service life, reducing replacement frequency and lowering equipment operating costs.
10. Equipment Downtime Issues
Problem Description: Bearing failures can cause equipment downtime, affecting production efficiency.
Solution: The high reliability and ease of maintenance of mounted bearings reduce equipment downtime, improving production efficiency.
Typical Applications of Mounted Bearings
Conveyor Systems: Used to support conveyor rollers, addressing alignment and load issues.
Agricultural Machinery: Used in tractors, harvesters, and other equipment, adapting to harsh environments and heavy loads.
Food and Pharmaceutical Equipment: Stainless steel mounted bearings address hygiene and corrosion issues.
Fans and Pumps: Provide stable operation in high-vibration and high-temperature environments.
Household Appliances: Used in washing machines, dryers, and other appliances, addressing noise and space constraints.
UCT Series Pillow Block Ball Bearings Parameters
Wide Application of Pillow Block Bearings
Customization Welcomed:
We can printing your brand (logo,artwork)on the shield or laser engraving your brand on the shield.
We can custom your packaging according to your design.
All copyright owned by clients and we promised don't disclose any information.
Packing and Shipping:
The deep groove ball bearings will be securely packaged individually, or tube packing or packed as customization packing
Shipping method is negotiable.
ABEC-1 Tolerance Class ABEC-1 (P0)
Inner Ring
Tolerance in um/s
d mm
Δdmp
9
Vdp²)0,1 Diameter Series
2,3,4
Vdmp
Kia
ΔBs
Vbs
over
including
high
low
max
max
max
high
low
max
1)0.6
2.5
0
-8
10
8
6
6
10
0
-40
12
2.5
10
0
-8
10
8
6
6
10
0
-120
15
10
18
0
-8
10
8
6
6
10
0
-120
20
18
30
0
-10
13
10
8
8
13
0
-120
20
30
50
0
-12
15
12
9
9
15
0
-120
20
50
80
0
-15
19
19
11
11
20
0
-150
25
Outer Ring
Tolerance in um/s
D mm
Δdmp
VDp2)4)Open Bearings Diameter Series
Capped Bearings2)3)
Vdmp
Kia
ΔBs
Vbs
9
0,1
2,3,4
2,3,4
over
including
high
low
max
max
max
high
low
max
1)2.5
6
0
-8
10
8
6
10
6
15
Identical to ΔBs and VBs of inner ring of same bearing
6
18
0
-8
10
8
6
10
6
15
18
30
0
-9
12
9
7
12
7
15
30
50
0
-11
14
11
8
16
8
20
50
80
0
-13
16
13
10
20
10
25
80
120
0
-15
19
19
11
26
11
35
120
150
0
-18
23
23
14
30
14
40
ABEC-3 Tolerance Class ABEC-3 (P6)
Inner Ring
Tolerance in um/s
d mm
Δdmp
9
Vdp²)0,1 Diameter Series
2,3,4
Vdmp
Kia
ΔBs
Vbs
over
including
high
low
max
max
max
high
low
max
11)0.6
2.5
0
-7
9
7
5
5
5
0
-40
12
2.5
10
0
-7
9
7
5
5
6
0
-120
15
10
18
0
-7
9
7
5
5
7
0
-120
20
18
30
0
-8
10
8
6
6
8
0
-120
20
30
50
0
-10
13
10
8
8
10
0
-120
20
50
80
0
-12
15
15
9
9
10
0
-150
25
Outer Ring
Tolerance in um/s
D mm
Δdmp
VDp2)4)Open Bearings Diameter Series
Capped Bearings2)3)
Vdmp
Kia
ΔBs
Vbs
9
0,1
2,3,4
2,3,4
over
including
high
low
max
max
max
high
low
max
1)2.5
6
0
-7
9
7
5
9
5
8
Identical to ΔBs and VBs of inner ring of same bearing
6
18
0
-7
9
7
5
9
5
8
18
30
0
-8
10
8
6
10
6
9
30
50
0
-9
11
9
7
13
7
10
50
80
0
-11
14
11
8
16
8
13
80
120
0
-13
16
16
10
20
10
18
120
150
0
-15
19
19
11
25
11
20
ABEC-5 Tolerance Class ABEC-5 (P5)
Inner Ring
Tolerance in um/s
d mm
Δdmp
Vdp²)Diameter Series
Vdmp
Kia
Sd
Sis3)
ΔBs
Vbs
9
0,1,2,3,4
over
including
high
low
max
3
max
max
max
High
Low
max
1)0.6
2.5
0
-5
5
4
3
4
7
7
0
-40
5
2.5
10
0
-5
5
4
3
4
7
7
0
-40
5
10
18
0
-5
5
4
3
4
7
7
0
-80
5
18
30
0
-6
6
5
3
4
8
8
0
-120
5
30
50
0
-8
8
6
4
5
8
8
0
-120
5
50
80
0
-9
9
7
5
5
8
8
0
-150
6
Outer Ring
Tolerance in um/s
D mm
Δdmp
Vdp²)Diameter Series
Vdmp
Kia
SD4) SD15)
Sea4)5)
ΔBs
Vbs
9
0,1,2,3,4
over
including
high
low
max
max
max
max
High
Low
max
1)2.5
6
0
-5
5
4
3
5
8
8
5
6
18
0
-5
5
4
3
5
8
8
5
18
30
0
-6
6
5
3
6
8
8
5
30
50
0
-7
7
5
4
7
8
8
5
50
80
0
-9
9
7
5
8
8
10
6
80
120
0
-10
10
8
5
10
9
11
8
120
150
0
-11
11
8
6
11
10
13
8
ABEC-7 Tolerance Class ABEC-7 (P4)
Inner Ring
Tolerance in um/s
d mm
Δdmp
Δds
Vdp²)Diameter Series
Vdmp
Kia
Sd
Sia
ΔBs
Vbs
7,8,9
1,7,2,3,4
over
including
high
low
high
low
max
max
max
max
max
High
low
Low
max
1)0.6
2.5
0
-4
0
-4
4
3
2
2.5
3
3
0
-40
-40
2.5
2.5
10
0
-4
0
-4
4
3
2
2.5
3
3
0
-40
-40
2.5
10
18
0
-4
0
-4
4
3
2
2.5
3
3
0
-80
-80
2.5
18
30
0
-5
0
-5
5
4
2.5
3
4
4
0
-120
-120
2.5
30
50
0
-6
0
-5
6
4
3
4
4
4
0
-120
-120
3
50
80
0
-7
0
-5
7
5
3.5
4
5
5
0
-150
-150
4
Outer Ring
Tolerance in um/s
D mm
Δdmp
Δds
Vdp²)Diameter Series
Vdmp
Kia
Sd
Sia
ΔBs
Vbs
7,8,9
1,7,2,3,4
over
including
high
low
high
low
max
max
max
max
max
High
low
max
1)2.5
6
0
-4
0
-4
4
3
2
3
4
5
Identical to ΔBs and VBs of inner ring of same bearing
2.5
6
18
0
-4
0
-4
4
3
2
3
4
5
2.5
18
30
0
-5
0
-5
5
4
2.5
4
4
5
2.5
30
50
0
-6
0
-6
6
5
3
5
4
5
2.5
50
80
0
-7
0
-7
7
5
3.5
5
4
5
3
80
120
0
-8
0
-8
8
6
4
6
5
6
4
120
150
0
-9
0
-9
9
7
5
7
5
7
5
Tolerance Data for Vibration of Single Bearing
D
V
V1
V2
V3
V4
mm
Low
Medium
High
Low
Medium
High
Low
Medium
High
Low
Medium
High
Low
Medium
High
3,4
80
44
44
60
35
32
48
26
22
31
16
15
28
10
10
5,6
110
72
60
74
48
40
58
36
30
35
21
18
32
11
11
7,8,9
130
96
80
92
66
54
72
48
40
44
28
24
38
12
12
10,12
160
120
100
120
80
70
90
60
50
55
35
30
45
14
15
15
210
150
120
150
100
85
110
78
60
65
46
35
52
18
18
17
210
150
120
150
100
85
110
78
60
65
46
35
52
25
25
20
260
190
150
180
125
100
130
100
75
80
60
45
60
25
25
22,25
260
190
150
180
125
100
130
100
75
80
60
45
60
30
32
28
260
190
150
180
125
100
130
100
75
80
60
45
60
35
40
30,32
300
240
190
200
150
130
150
120
100
90
75
60
70
35
40
35
300
240
190
200
150
130
150
120
100
90
75
60
70
42
45
40
360
300
260
240
180
160
180
150
130
110
90
80
82
50
50
45
360
300
260
240
180
160
180
150
130
110
90
80
82
60
60
50
420
320
320
280
200
200
210
160
160
125
100
100
95
70
70
Maximum Vibration Acceleration of Single Bearing
D
Diameter Series(0)
Diameter Series(2)
Diameter Series(3)
mm
Z
Z1
Z2
Z3
Z
Z1
Z2
Z3
Z4
Z
Z1
Z2
Z3
Z4
3
35
34
32
28
36
35
32
30
-
37
36
33
31
-
4
35
34
32
28
36
35
32
30
-
37
36
33
31
-
5
37
36
34
30
38
37
34
32
-
39
37
35
33
-
6
37
36
34
30
38
37
34
32
-
39
37
35
33
-
7
39
38
35
31
40
38
36
34
-
-
-
-
-
-
8
39
38
35
31
40
38
36
34
-
-
-
-
-
-
9
41
40
36
32
42
40
37
35
-
-
-
-
-
-
10
43
42
38
33
44
42
39
35
30
37
44
40
37
32
12
44
43
39
34
45
43
39
35
30
47
45
40
37
32
15
45
44
40
35
46
44
41
36
31
48
46
42
38
33
17
46
44
40
35
47
45
41
36
31
49
47
42
38
33
20
47
45
41
36
48
46
42
38
33
50
48
43
39
34
22
47
45
41
36
48
46
42
38
33
50
48
43
39
34
25
48
46
42
38
49
47
43
40
36
51
49
44
41
37
28
49
47
43
39
50
48
44
41
37
52
50
45
42
38
30
49
47
43
39
50
48
44
41
37
52
50
45
42
38
32
50
48
44
40
51
49
45
42
38
53
51
46
43
39
35
51
49
45
41
52
50
46
43
39
54
52
47
44
40
40
53
51
46
42
54
52
47
44
40
56
54
49
45
41
45
55
53
48
45
56
54
49
46
43
58
56
51
47
44
50
57
54
50
47
58
55
51
48
45
60
57
53
49
46
55
59
56
52
49
60
57
53
50
47
62
59
54
51
48
60
61
58
54
51
62
59
54
51
48
61
56
53
50
Company brand KYODO YUSHI
Product
Base oil
Usage range
Characteristics
EXXON
Multemp SRL
Polyol ester+Diester
(-50,+150)
Excellent noise suppressantproperty and extended performance life
Multemp PS
Diester+Refined mineral oil
(-50,+130)
Excellent low temperature performance,has outstanding noise suppressant property
Multemp SM-B
Synthetic hydrocarbon
(-50,+200)
Long service life under high temperature,Excellent low temperature performance,has high speed operation,low noise property
Multemp ET-K
SyntheticEther +Polyol ester
(-40≥,+200)
Has more extended life under high operating temperature condition
MOBILE
Polyrex EM
Mineral grease
(-40,+180)
Long life and high temperature
Beacon325
Synthetic grease
(-54,+150)
General purpose grease
Andok C
Channeling petroleum grease
(-27,+120)
Smooth running,long life with minimum migration
CHEVRON
Mobil 28(MIL-G-81322)
Synthetic hydrocarbon
(-54,+177)
Wide temperature range,good low temperature torque
Mobil HP
Lithium complex
(-30,+110)
Vibration,moderate speed and good corrosion resistance
SHELL
SRI-2
Mineral grease
(-30,+180)
High temperature range,good water resistance
DUPONT
Alvania 2
Mineral grease
(-35,+120)
Long life and high temperature
RLQ #2
Mineral grease
(-50,+150)
Low noise,high speed and high temperature
KLUBER
ASONIC
Synthetic hydrocarbon
(-50,+140)
High temperature stability with good lubricity properties
JINZHI
HANGU 2#
Mineral grease
(-20,+120)
Low noise
HTHS
Mineral grease
(-40,+180)
High speed,low temperature,low torque and low noise
The Radial Clearance of Bearings with Electric Motor Quality
Bore
CM
Over
Including
Min
Max
mm
inch
mm
inch
um
um
10
0.3937
18
0.7087
4
11
18
0.7087
24
0.9449
5
12
24
0.9449
30
1.1811
5
12
30
1.1811
40
1.5748
9
17
40
1.5748
50
1.9685
9
17
50
1.9685
65
2.5591
12
22
Datas of the Mini-deep Groove Bearings Under No Load As Follows:
Tolerance in um
Bore
Inch R Series
C2
NORMAL
C3
C4
Over
Including
mm
inch
mm
inch
min
max
min
max
min
max
min
2.5
0.0984
10
0.3937
R2-R6
0
7
2
13
8
23
14
10
0.3937
18
0.7087
R8-R10
0
9
3
18
11
25
18
18
0.7087
24
0.9449
R12-R14
0
10
5
20
13
58
20
24
0.9449
30
1.1811
R16-18
1
11
5
20
13
28
23
30
1.1811
40
1.5748
R20-R24
1
11
6
20
15
33
28
40
1.5748
50
1.9685
1
11
6
23
18
36
30
50
1.9685
65
2.5591
1
12
8
28
23
43
38
Datas of the Mini-deep Groove Bearings Under No Load As Follows:
Tolerance in um
Clearance Code
MC1
MC2
MC3
MC4
MC5
Clearance
min
max
min
max
min
max
min
max
min
max
1
6
4
9
6
11
9
14
15
22
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2003
Ecer Certification：
Verified Supplier
We are Ningbo Kent Bearing Co., Ltd, one of the leading high-quality bearing manufacturer and supplier, established in 2003.
We registered the BUGAO Bearing trademark in 2003 and specialize in deep groove ball bearings
for electric motors, automobiles, household appliances, power tools, ...
We are Ningbo Kent Bearing Co., Ltd, one of the leading high-quality bearing manufacturer and supplier, established in 2003.
We registered the BUGAO Bearing trademark in 2003 and specialize in deep groove ball bearings
for electric motors, automobiles, household appliances, power tools, ...
