Product Description


Product Introduction

LTZC’s cross cylindrical roller slewing bearings are composed of a inner ring, outer ring, a single row of rollers, cage (spacer), and seal device etc. The LTZC cross cylindrical roller slewing bearing can carry different combined forces caused by axial load, tilting moment and radial load in different working condition, by adjusting the quantity of crossed rollers and contact angle. There are integral and separate rings in the structure of LTZC cross cylindrical roller slewing bearing. Cages or spacers are usually adopted within design in order to ease friction. The complement of a full set of rollers is usually taken when the load is heavier. However, the greater frictional resistance could cause groove marks around the circle where rollers and raceway contact.

 

Product Model

Dimension

Type

Weight

d

D

T

 

mm

 

kg≈

1100

1390

91

111.28.1250.03/P5

352

1260

1540

96

111.32.1400.03K/G1

428

1400

1728

110

D1792/1400

624

1466

 

80

111.28.1600.03

405

1466

 

80

111.28.1600.03

405

1460

1740

91

111.32.1600.03K

486

1629

 

100

111.36.1800.03

690

1954

 

148

1797/1954

1116

1954

 

148

1797/1954K

1135

1825

2132

112

111.40.2000.11K/P5

838

1825

2178

112

111.40.2000.12K

862

1825

2178

112

111.40.2000.03K

862

1825

2178

135

111.40.2000.03K1/P5

1110

2100

2600

180

1797/2100G2K3

2377

2327

 

119

1797/2327

1322

2460

3016

220

1797/2460

3794

2500

 

210

1797/2500K3

4597

2500

 

210

1797/2500K12

4597

2500

 

210

1797/2500K13

4596

2325

2678

112

112.40.2500.12

1147

2325

2678

112

112.40.2500.03

1147

2579

3571

231

1797/2579

3118

2600

 

200

1797/2600G2K7

3558

2600

 

200

1797/2600G2K8

3558

2600

 

200

1797/2600K

3562

2350

2820

220

111.65.2610.12

2989

2635

3332

270

1797/2635G2K

5925

2635

3400

270

1797/2635GK

5936

2625

2978

112

111.40.2800.03K

1282

2625

2978

112

112.40.2800.03

1298

2625

3192

150

112.40.2800.03K

2780

2610

2990

134

111.50.2800.03

1652

2922

3376

134

111.50.3150.12K1

2165

2922

3376

134

111.50.3150.03K

2179

2922

3376

134

112.50.3150.03

2161

2868

3432

270

111.90.3150.03

4943

2930

3470

225

112.80.3200.03K

4493

3322

3776

134

111.52.3550.03

2493

3322

3776

150

112.50.3550.12K2

2484

3322

 

180

112.50.3550.12K3/G1

3389

3760

4450

250

1797/3760

8246

3820

 

164

111.40.4030.03

3106

3830

 

180

111.50.4030.03K

3552

4272

4726

174

112.50.4500.12K1

4302

4272

4690

174

112.50.4500.12K2

4444

3230

3990

240

1797/3230K6

8096

3230

 

240

1797/3230K7

7669

3230

3970

240

1797/3230K8

7613

3230

3970

240

1797/3230K9

7627

3230

3970

252

1797/3230K10

7859

3230

 

240

1797/3232K11

7663

3230

3970

240

1797/3230K12

7613

3230

3990

240

1797/3230K13

7712

3230

3970

240

1797/3230K14

7613

3230

3970

240

1797/3230K15

7613

3230

3970

240

1797/3230G2K14

7613

3230

3990

240

1797/3230G2K15

8096

3230

3970

240

1797/3230G2K16

7613

3230

3960

240

1797/3230G2K17

7633

3230

3970

240

1797/3230G2K18

7619

3230

3970

240

1797/3230G2K19

7619

3230

3970

240

1797/3230G2K20

7613

3230

 

240

1797/3230G2Y5

7673

3230

3970

240

1797/3230G2Y6

7613

3230

 

240

1797/3230G2Y7

7673

620

 

61

111.20.7100.03/P6

82.2

674

853

70

111.25.770.03K/P4

101

674

853

70

111.25.770.03K1/P4

101

810

 

125

E1797/810

420

854

1136

100

D1797/856

298

954

1234

124

1797/954

455

888

1041

83

111.25.980.03

129

168

254

21

C1797/168

5.31

171

 

40

D1797/171

14.3

200

315

30

1797/200

15

235

380

55

1797/235K

24.5

200

322

35

111.12.260.03

11.2

200

322

35

111.12.260.03/P5

11.2

250

372

35

111.12.310.03/P5

13.4

260

 

86

111.30.386.03

87

496

694

65

D1797/496

79.7

472

694

60

111.25.587.03/P5

83.7

664

858

75

E1797/664

109

FAQ

Lubrication Performance Requirement

Lubrication selections are mainly according to loading, temperature, vibration and working environment etc. Additional considerations should also be taken into account:

Good performance on high and low temperature range, preferably waterproof.

Operating temperature should be 20ºC higher than the bearing working temperature.

Good performance in extreme pressure situations, in addition to antiwear properties.

Where bearings adopted a centralized lubrication system, then it is important to ensure consistency within the system, so as to maintain a smooth flow of lubricant at any time.

Commonly used grease for slewing bearings included Calcium based grease, Lithium based grease, and Aluminum based grease etc.

 

Lubrication Period

The slewing bearing’s lubrication intervals are dependent on the working condition and environment in addition to the run time. Some recommendations are detailed below:

 

Generally lubrication maintenance should be performed every 150 hours. If under extreme working conditions then this period should be reduced to 50~100 hours. (Typical extreme conditions are high moisture conditions,high temperature,dusty environment, etc)

If the bearing is scheduled to be out of service for a long period of time, then the bearing needs to be filled with lubricant.

 

Lubrication Methods

Grease should be injected from the respective lubrication holes (the greasing points are generally a screwed hole with the size of M10×1 plug). After greasing slowly turn the bearing so as to ensure that the grease is distributed evenly.

If there are no special greasing requests then grease should be inserted within the bearing until grease leaks out from the sealing lip in an even manner.

The lubricating hole can be used as the intake point or the extract point. When re-lubricating the old grease should be purged out by new grease that is being injected.

After re-lubrication ensure that lubrication plug is placed back into the grease point. (For individual lubrication point)

 

Hot Tags: cross cylindrical roller slewing bearing with outer tooth, manufacturers, wholesale, customized, high quality, low price

US $1-100,000
/ Set
|
1 Set

(Min. Order)

###

Standard or Nonstandard: Nonstandard
Feature: Corrosion-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Crowned Raceway
Material: Bearing Steel

###

Customization:

###

Dimension

Type

Weight

d

D

T

 

mm

 

kg≈

1100

1390

91

111.28.1250.03/P5

352

1260

1540

96

111.32.1400.03K/G1

428

1400

1728

110

D1792/1400

624

1466

 

80

111.28.1600.03

405

1466

 

80

111.28.1600.03

405

1460

1740

91

111.32.1600.03K

486

1629

 

100

111.36.1800.03

690

1954

 

148

1797/1954

1116

1954

 

148

1797/1954K

1135

1825

2132

112

111.40.2000.11K/P5

838

1825

2178

112

111.40.2000.12K

862

1825

2178

112

111.40.2000.03K

862

1825

2178

135

111.40.2000.03K1/P5

1110

2100

2600

180

1797/2100G2K3

2377

2327

 

119

1797/2327

1322

2460

3016

220

1797/2460

3794

2500

 

210

1797/2500K3

4597

2500

 

210

1797/2500K12

4597

2500

 

210

1797/2500K13

4596

2325

2678

112

112.40.2500.12

1147

2325

2678

112

112.40.2500.03

1147

2579

3021

231

1797/2579

3118

2600

 

200

1797/2600G2K7

3558

2600

 

200

1797/2600G2K8

3558

2600

 

200

1797/2600K

3562

2350

2820

220

111.65.2610.12

2989

2635

3332

270

1797/2635G2K

5925

2635

3400

270

1797/2635GK

5936

2625

2978

112

111.40.2800.03K

1282

2625

2978

112

112.40.2800.03

1298

2625

3192

150

112.40.2800.03K

2780

2610

2990

134

111.50.2800.03

1652

2922

3376

134

111.50.3150.12K1

2165

2922

3376

134

111.50.3150.03K

2179

2922

3376

134

112.50.3150.03

2161

2868

3432

270

111.90.3150.03

4943

2930

3470

225

112.80.3200.03K

4493

3322

3776

134

111.52.3550.03

2493

3322

3776

150

112.50.3550.12K2

2484

3322

 

180

112.50.3550.12K3/G1

3389

3760

4450

250

1797/3760

8246

3820

 

164

111.40.4030.03

3106

3830

 

180

111.50.4030.03K

3552

4272

4726

174

112.50.4500.12K1

4302

4272

4690

174

112.50.4500.12K2

4444

3230

3990

240

1797/3230K6

8096

3230

 

240

1797/3230K7

7669

3230

3970

240

1797/3230K8

7613

3230

3970

240

1797/3230K9

7627

3230

3970

252

1797/3230K10

7859

3230

 

240

1797/3232K11

7663

3230

3970

240

1797/3230K12

7613

3230

3990

240

1797/3230K13

7712

3230

3970

240

1797/3230K14

7613

3230

3970

240

1797/3230K15

7613

3230

3970

240

1797/3230G2K14

7613

3230

3990

240

1797/3230G2K15

8096

3230

3970

240

1797/3230G2K16

7613

3230

3960

240

1797/3230G2K17

7633

3230

3970

240

1797/3230G2K18

7619

3230

3970

240

1797/3230G2K19

7619

3230

3970

240

1797/3230G2K20

7613

3230

 

240

1797/3230G2Y5

7673

3230

3970

240

1797/3230G2Y6

7613

3230

 

240

1797/3230G2Y7

7673

620

 

61

111.20.7100.03/P6

82.2

674

853

70

111.25.770.03K/P4

101

674

853

70

111.25.770.03K1/P4

101

810

 

125

E1797/810

420

854

1136

100

D1797/856

298

954

1234

124

1797/954

455

888

1041

83

111.25.980.03

129

168

254

21

C1797/168

5.31

171

 

40

D1797/171

14.3

200

315

30

1797/200

15

235

380

55

1797/235K

24.5

200

322

35

111.12.260.03

11.2

200

322

35

111.12.260.03/P5

11.2

250

372

35

111.12.310.03/P5

13.4

260

 

86

111.30.386.03

87

496

694

65

D1797/496

79.7

472

694

60

111.25.587.03/P5

83.7

664

858

75

E1797/664

109

US $1-100,000
/ Set
|
1 Set

(Min. Order)

###

Standard or Nonstandard: Nonstandard
Feature: Corrosion-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Crowned Raceway
Material: Bearing Steel

###

Customization:

###

Dimension

Type

Weight

d

D

T

 

mm

 

kg≈

1100

1390

91

111.28.1250.03/P5

352

1260

1540

96

111.32.1400.03K/G1

428

1400

1728

110

D1792/1400

624

1466

 

80

111.28.1600.03

405

1466

 

80

111.28.1600.03

405

1460

1740

91

111.32.1600.03K

486

1629

 

100

111.36.1800.03

690

1954

 

148

1797/1954

1116

1954

 

148

1797/1954K

1135

1825

2132

112

111.40.2000.11K/P5

838

1825

2178

112

111.40.2000.12K

862

1825

2178

112

111.40.2000.03K

862

1825

2178

135

111.40.2000.03K1/P5

1110

2100

2600

180

1797/2100G2K3

2377

2327

 

119

1797/2327

1322

2460

3016

220

1797/2460

3794

2500

 

210

1797/2500K3

4597

2500

 

210

1797/2500K12

4597

2500

 

210

1797/2500K13

4596

2325

2678

112

112.40.2500.12

1147

2325

2678

112

112.40.2500.03

1147

2579

3021

231

1797/2579

3118

2600

 

200

1797/2600G2K7

3558

2600

 

200

1797/2600G2K8

3558

2600

 

200

1797/2600K

3562

2350

2820

220

111.65.2610.12

2989

2635

3332

270

1797/2635G2K

5925

2635

3400

270

1797/2635GK

5936

2625

2978

112

111.40.2800.03K

1282

2625

2978

112

112.40.2800.03

1298

2625

3192

150

112.40.2800.03K

2780

2610

2990

134

111.50.2800.03

1652

2922

3376

134

111.50.3150.12K1

2165

2922

3376

134

111.50.3150.03K

2179

2922

3376

134

112.50.3150.03

2161

2868

3432

270

111.90.3150.03

4943

2930

3470

225

112.80.3200.03K

4493

3322

3776

134

111.52.3550.03

2493

3322

3776

150

112.50.3550.12K2

2484

3322

 

180

112.50.3550.12K3/G1

3389

3760

4450

250

1797/3760

8246

3820

 

164

111.40.4030.03

3106

3830

 

180

111.50.4030.03K

3552

4272

4726

174

112.50.4500.12K1

4302

4272

4690

174

112.50.4500.12K2

4444

3230

3990

240

1797/3230K6

8096

3230

 

240

1797/3230K7

7669

3230

3970

240

1797/3230K8

7613

3230

3970

240

1797/3230K9

7627

3230

3970

252

1797/3230K10

7859

3230

 

240

1797/3232K11

7663

3230

3970

240

1797/3230K12

7613

3230

3990

240

1797/3230K13

7712

3230

3970

240

1797/3230K14

7613

3230

3970

240

1797/3230K15

7613

3230

3970

240

1797/3230G2K14

7613

3230

3990

240

1797/3230G2K15

8096

3230

3970

240

1797/3230G2K16

7613

3230

3960

240

1797/3230G2K17

7633

3230

3970

240

1797/3230G2K18

7619

3230

3970

240

1797/3230G2K19

7619

3230

3970

240

1797/3230G2K20

7613

3230

 

240

1797/3230G2Y5

7673

3230

3970

240

1797/3230G2Y6

7613

3230

 

240

1797/3230G2Y7

7673

620

 

61

111.20.7100.03/P6

82.2

674

853

70

111.25.770.03K/P4

101

674

853

70

111.25.770.03K1/P4

101

810

 

125

E1797/810

420

854

1136

100

D1797/856

298

954

1234

124

1797/954

455

888

1041

83

111.25.980.03

129

168

254

21

C1797/168

5.31

171

 

40

D1797/171

14.3

200

315

30

1797/200

15

235

380

55

1797/235K

24.5

200

322

35

111.12.260.03

11.2

200

322

35

111.12.260.03/P5

11.2

250

372

35

111.12.310.03/P5

13.4

260

 

86

111.30.386.03

87

496

694

65

D1797/496

79.7

472

694

60

111.25.587.03/P5

83.7

664

858

75

E1797/664

109

Bushing Application, Type and Compression Capability

Bushings are cylindrical bushings used in machinery. It prevents wear of moving parts and is often used as an enclosure. Bushings are also known as plain bearings or sleeve bearings. You may be wondering what these parts do and how they work, but this article aims to answer all your questions. We’ll cover bushing applications, types and compression capabilities so you can choose the right one for your needs.
bushing

application

A bushing is a mechanical component that plays an important role in many different fields. In addition to being very practical, it helps reduce noise, vibration, wear and provides anti-corrosion properties. These properties help mechanical equipment in various ways, including making it easier to maintain and reducing its overall structure. The functionality of an enclosure depends on its purpose and environment. This article will discuss some of the most common applications of casing.
For example, in an aircraft, the bushing assembly 16 may be used for the bulkhead isolator 40 . The bushing assembly 16 provides the interfaces and paths required for current flow. In this manner, the sleeve assembly provides a secure, reliable connection between two objects with different electrical charges. They also prevent sparking by increasing the electrical conductivity of the component and reducing its resistivity, thereby minimizing the chance of spark formation.
Another common application for bushings is as a support shaft. Unlike bearings, bushings operate by sliding between two moving surfaces. As a result, they reduce friction and handling stress, reducing overall maintenance costs. Typically, the bushing is made of brass or bronze. The benefits of bushings are similar to those of bearings. They help extend the life of rotating machines by reducing frictional energy loss and wear.
In addition to identifying growth opportunities and minimizing risks, the Bushing Anti-Vibration Mounts Market report provides insights into the dynamics of the industry and its key players. The report covers global market size, applications, growth prospects, challenges and regional forecasts. The detailed section on Bushing Anti-Vibration Mounts industry provides insights on demand and supply along with competitive analysis at regional and country level.

type

There are several types of bushings. Among them, the SF6 insulating sleeve has the simplest structure and is based on composite hollow insulators. It also has several metal shielding cylinders for regulating the electric field within the enclosure and another for grounding the metal shield. In addition to being lightweight, this sleeve is also very durable, but the diameter of its shield electrode is very large, which means special installation and handling procedures are required.
Linear bushings are usually pressed into the bore of the shaft and provide support as the shaft moves in/out. Non-press-fit bushings are held in place by snap rings or pins. For certain applications, engineers often choose bushings over bearings and vice versa. That’s why. Below are some common bushing types. If you need to buy, make sure you know how to tell them apart.
OIP bushings are used for oil-filled cable boxes, and oil-to-oil bushings are used for EHV power transformers. The main components of the OIP enclosure are shown in Figure 7a. If you are considering this type of bushing for your specific application, you need to make sure you understand your specific requirements. You can also consult your local engineering department for more information.
All types of bushings should be tested for IR and capacitance. The test tap should be securely attached to the bushing flange. If damaged bushings are found, replace them immediately. Be sure to keep complete records of the enclosure for routine maintenance and any IR testing. Also, be sure to pay attention to tan d and thermal vision measurements.
bushing

Compressive ability

There are several things to consider when choosing an enclosure. First, the material. There are two main types of bushings: those made of filled Teflon and those made of polyester resin. The former has the highest compressive strength, while the latter has a lower compressive capacity. If you need small amounts, glass-filled nylon bushings are the most common and best option. Glass-filled nylon is an economical material with a compressive strength of 36,000 lbs.
Second, the material used for the enclosure must be able to withstand the load. For example, bronze bushings can cause metal shavings to fall into the papermaking process. CG materials can withstand very high levels of moisture, which can damage bushings that require lubrication. Additionally, these materials can operate for extended periods of time without lubrication. This is particularly advantageous in the paper industry, since the casing operates in a humid environment.
In addition to the material and its composition, other characteristics of the enclosure must also be considered, including its operating temperature. Although frictional heat from moving loads and the temperature of the bushing itself can affect the performance of the bushing, these factors determine its service life. For high temperature applications, the PV of the enclosure should be kept low. On the other hand, plastic bushings are generally less heat resistant than metal bushings. In addition, plastic sleeves have a high rate of thermal expansion. To avoid this, size control is also important.
Low pressure bushings have different requirements. An 800 MVA installation requires a low voltage bushing rated at 14 000 A. The palm assembly of the transformer also features a large central copper cylinder for electrical current. The bushing must withstand this amount of current and must maintain an even distribution of current in the transformer tank. If there is a leak, the bushing must be able to resist the leak so as not to damage the transformer.

cost

The cost of new control arm bushings varies widely. Some parts are cheaper than others, and a new part is only $200. However, if you replace the four control bushings in your car, the cost can exceed $1,200. The cost breakdown for each section is listed below. If you plan to replace all four, the cost of each bushing may range from $200 to $500.
The control arm bushing bears the brunt of the forces generated by the tire and is parallel to the direction of the force. However, over time, these components wear out and need to be replaced. Replacing one control arm bushing costs between $300 and $1,200. However, the cost of replacing each arm bushing depends on your car model and driving habits. The control arm bushings should last about 100,000 miles before needing replacement.
The repair process for control arm bushings is time consuming and expensive. Also, they may need to remove the heat shield or bracket. In either case, the procedure is simple. Stabilizer bar brackets are usually attached with one or two mounting bolts. They can also be secured with nuts or threaded holes. All you need is a wrench to remove them.
The control arm bushings are made of two metal cylinders and a thick rubber bushing. These parts can deteriorate from potholes, off-roading or accidents. Because they are made of rubber, the parts are more expensive than new. Buying used ones can save you money because you don’t need to install them yourself. However, if you do plan on fixing a luxury car yourself, be sure to find one that has a warranty and warranty.
bushing

maintain

To prevent your vehicle from overheating and leaking oil, a properly functioning bushing must be used. If the oil level is too low, you will need to check the mounting bolts to make sure they are properly tightened. Check gasket to ensure proper compression is applied, replace bushing if necessary. You should notify your vehicle manufacturer if your vehicle is immersed in oil. Whenever an oil leak occurs, it is very important to replace the oil-filled bushing.
Another important aspect of bushing maintenance is the detection and correction of partial discharges. Partial discharge is caused by current entering the bushing. Partial discharge can cause tree-like structures, cracks and carbonization in the discharge channel, which can eventually damage the casing. Early detection of these processes is critical to ensuring that your vehicle’s bushings are properly maintained. Identifying and repairing partial discharges is critical to ensuring optimal operation, regardless of the type of pump or motor.
To diagnose casing condition, perform several tests. You can use tan d measurement, which is a powerful tool for detecting the ingress of water and moisture. You can also use power factor measurements to detect localized defects and aging effects. You can also check the oil level by performing an infrared check. After completing these tests, you will be able to determine if there is enough oil in the casing.
If the oil level in the transformer is too low, water and air may leak into the transformer. To avoid this problem, be sure to check the MOG and transformer oil levels. If the silicone is pink, replace it. You should also check the function of the oil pump, fan and control circuits annually. Check the physical condition of the pump and fan and whether they need to be replaced. Clean the transformer bushing with a soft cotton cloth and inspect for cracks.

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editor by czh 2022-11-26