Misunderstandings in Home Improvement

In home decoration, due to the particularity of materials or craftsmanship, in the case of material qualifications and construction specifications, there may be some problems in the decoration process. For example, if the construction party is to prevent potential safety hazards in the future, it will stick straight when laying the circuit. Some owners mistakenly believe that the builder is doing this to increase revenue. Similar problems such as this may affect the relationship between the owner and the construction party and are not conducive to construction. Therefore, we have selected several representative issues for the reader's reference.

>>> Links: Expert Tips: Floor Top 5 Questions

Floor: Texture color difference is normal

Misconception: The newly purchased solid wood flooring and the samples provided by the dealers do not look the same, and there are texture and color differences between the floor plates. This is a quality issue for the goods.

Experts: Solid wood flooring is natural from the inside to the outside, so there is a certain difference in texture and color is normal. Consumers who are worried about this problem can first select one or two satisfactorily used floors as samples, and then use this as a standard to stipulate the relevant matters of color difference in the contract. In this way, dealers will choose floors with similar textures and colors. However, prices may also increase by about 30%.

Pavement must stay expansion joints

Misunderstanding: There are obvious gaps in the paving floor, indicating that the workers have technical problems.

Experts: If the indoor temperature, humidity changes too much, the floor volume will expand or shrink, in the floor between the floor, the floor and the wall to reserve a certain gap, you can avoid the floor due to expansion caused by warping and other deformation .

According to the relevant national regulations, the expansion joint between the floor and the wall must be between 8-10 mm. The country does not stipulate the size of the expansion joint between the plates. Because the floor material is different, the expansion coefficient is not the same, and the size of the expansion joints to be reserved is not the same. The greater the density of the floor (in general, the more expensive the floor is, the more expensive) the smaller the volume expansion coefficient, so the smaller the reserved expansion joint.

>>> Link: Do not know: choose the details of the cabinet

Cabinet: Thermal expansion and contraction caused joint cracking

Misconception: Cracking of the countertops of the cabinet must be caused by unqualified materials or improper construction.

Experts: Regardless of the material of the cabinet countertops, there may be cracks in the tabletop seams due to thermal expansion and contraction of the material. If two different materials are combined together, the possibility of cracking is greater. A liner of the same material can be added below the seam. The length of the liner and the width of the table are the same. The width of the liner is about 5 cm, which can reduce the possibility of cracking.

Brushing project: many reasons for wall cracking

Misunderstanding: Wall cracking must be caused by improper construction or material failure.

Experts: Improper construction is one of the causes of wall cracking, but cracking of walls may also be caused by other reasons. Deformation of the building itself, such as the subsidence of the building foundation; indoor temperature and humidity changes too much, will cause the wall (body) cracking phenomenon, the best way to prevent is to paint kraft paper or mesh cloth before painting, reducing the wall surface The possibility of cracking.

>>>Links: Netizens talk about hydropower wiring regrets

Hydropower: ramping down to save money

Misunderstanding: The shortest and most economical walk of the water circuit, the construction party must lay the line in order to increase the number of meters of the water circuit, in order to collect more money.

Experts: The state clearly stipulates that the laying of water pipes should be horizontal and vertical. Although there are no clear provisions on the laying of circuits, in the industry, the principle of horizontal and vertical shall be followed in most cases of circuit wiring. In other words, the water circuit can take a straight line. It's best to go straight. If you want to save money, the circuit will go slash when walking. When you need to nail a nail and hang things on the wall in home life, you may nail the nails to the line and cause safety hazards.

Wood Products: Extra Large Doors with Frames

Misconception: Merchants add metal frames around the doors to earn more money.

Experts: Under normal circumstances, only one side of the door is connected to the cabinet body. Relatively speaking, the door is in a free state and is restrained by external forces. The coefficient of deformation of the wooden cabinet door is large. Therefore, it is surrounded by some large wooden cabinet doors. It is necessary to add a metal frame to reduce the possibility of its deformation. When the height (length) of a wooden cabinet door exceeds 200 cm, or the width exceeds 50 cm, it is recommended that the wooden cabinet door be reinforced to reduce the possibility of deformation. Steel liners can also be added between the door panels of the cabinet door. However, if the steel liner is too thin, the effect is not great. Therefore, the best way is to add a metal frame around the door, but the price of the cabinet door should be doubled.

Environmental Impact Wooden Door Use

Misunderstanding: The hand-made wooden door leaf had the problems of inconvenience of opening, loose closure, cracking of the veneer sheet, and exposure of the nail cap, either due to unqualified material quality or due to improper construction.

Experts: These problems are mainly caused by changes in the volume of wooden materials. Indoor humidity, temperature, ventilation, and light conditions are important influencing factors. During construction, wood can be placed in the room for a period of time to adapt it to the new environment before construction. At the same time, the temperature and humidity in the control room must be taken into account in daily life.

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Slewing Bearing

Swing bearing

1.We own the most advanced production machine in China ,can supply you it with highest precision .

2.we have the most professional technologist,they have been worked for worldwide famous slewing bearing

company for years .

3.we supply slewing bearing for many Chinese excavator /loader factories .

4.There are many types of it in stock ,Low MOQ is accepted and can delivery your goods asap.

5.Professional installation is highly recommended.

About our Slewing Rings

Name	slewing ring bearing / Excavator SWING CIRCLE
Suitable Brand	Excavator
Suitable Model	Excavator
Original	China
AplliCartion	Excavator
Warranty	One year
Delivery time	wihtin 3 days after payment confirmed
MOQ	1 set
Packing	standard export carton & wooden case or as your require

Many types of excavator slewing bearing for your purchase.

Excavator Brand	Model No.
Excavator	PC30	PC40	PC60-6 (Z=76)	PC60-6 (Z=80)	PC60-7 (Z=76)
	PC70-7	PC75U	PC90	PC90-6	PC100-5
	PC120-5	PC120-6 (4D95)	PC120-6 (4D102)	PC130-7	PC128UU
	PC150-5	PC20HT	PC200-1	PC200-2	PC200-3
	PC220-3	PC220-5	PC200-6 (S6D95)	PC200-6P (S6D102)	PC200-7 (Z=92)
	PC220-7	PC228UU	PC300-2	PC300-3	PC300-5
	PC300-6	PC300-7	PC350-6	PC360-7	PC400-3
	PC400-5	PC400-6	PC450
Excavator	HD450-7	HD512	HD100	HD700-1	HD700-2
	HD700-5	HD700-7	HD770SE	HD770-1	HD770-2
	HD800-7	HD820-1	HD900-7	HD1250-5	HD250-5
	HD250-7	HD307	HD516	HD400-7	HD450-5
Excavator
	Excavator	EX60-1	EX60-2	EX60-3	EX60-5	EX90
		EX100-1	EX100-3	EX100-5	EX120-1	EX120-2
EX200-3		EX200-5	EX210-5	ZX120	ZX160
EX200-1		EX200-2	EX200-3	EX200-5	EX210-5
ZX200		ZX200-3	ZX225	EX220-5	ZX230
ZX240		ZX270	EX300-1	EX300-2	EX300-3
EX300-5		ZX330	EX450	ZX480
Excavator	DH55-5	DH60-7	DH150-7	DH200-3	DH220-3
	DH102	DH225-7	DH258-7	DH280	DH290
	DH300-5	DH320	DH330-3	DH360-5	DH500
Excavator	SK03	SK09	SK907B	SK100	SK120-5
	SK200-1	SK200-2	SK200-5	SK200-6	SK200-8
	SK230-6	SK300	SK350-8
Excavator	SH120A2	SH120A3	SH200A1	SH200A2	SH200A3
	SH200G3	SH200C3	SH210A3	SH220A1	SH225
	SH260	SH265	SH280	SH300/A2	SH340
	SH350	SH430	SH40T	SH580
Excavator	R60-5	R60-7	R80-7	R130-5	R130-7
	R140	R150W	R170	R200	R210-3
	R220-5	R210-9	R215-7	R225-7	R245
	R260-5	R280	R290	R300	R305-7
	R320	R335-7	R360	R450
Excavator	EC55	EC210	EC240	EC290	EC360

Excavator swing bearing is divided into various specifiCartions:

1.single-row ball slewing bearings with outer teeth or inner teeth , or without teeth;

2.single-row cross roller slewing bearings;

3.double-row different diameter balls slewing bearings;

4.three-row roller slewing bearings and etc.

AppliCartion:

1.Construction Machinery : Cranes, Excavators

2.Mining/Heavy Equipments

3.Port/Marine/Offshore Machinery

4.Forest Industries Equipment

The single-row four points contact ball Slewing Bearing is composed of 2 seat-rings.It features compact in design,and light in weight.

The balls contact with the circular race at four points,via which the axial force,radial force and resultant moment may be born simultaneously.

It may be used for slewing conveyers,welding arms and positioners,light,medium duty cranes,excavators and other engineering machines.

Slewing Ring Bearing Features:

1.High load-carrying capability

2.Ability to accept the combined loads;axial ,radial and tilting moments

3.Flexibility with product design.

4.42CrMo/50Mn material be used to make slewing ring bearing

Product Catalog

1. Single row four point contact ball series.
2. Single-row crossed roller series.
3. Double row ball series.
4. Three-row roller series.
5. Roller and ball combination series.
6. Lightweight outline slewing ring.

Slew bearing for Single-row ball(HS Series)

1. Id:320-4500 Od:550-4500mm
2.material: 52Mn,42CrMo
3.OME service
4.ISO9001-2000 certifiCarte
5.R&D capacity

6.Tolerance:ABEC-1 standard

7.Basic loading rating:Dynamic & Static depend on different model

Dimensions					Mount dimensions			Number of holes		Gear parameters				Designation
mm					mm					m	mm	z	mm
D	d	T	H	h	D1	d1	dn	n	n1		Da		b
662	458	80	70	10	626	494	18	20	4	5	689	135	60	011.30.560
662	458	80	70	10	626	494	18	20	4	6	688.8	112	60	012.30.560
732	528	80	70	10	696	564	18	24	4	6	772.8	126	60	011.30.630
732	528	80	70	10	696	564	18	24	4	8	774.4	94	60	012.30.630
812	608	80	70	10	776	644	18	24	4	6	850.8	139	60	011.30.710
812	608	80	70	10	776	644	18	24	4	8	854.4	104	60	012.30.710
922	678	100	20	10	878	722	22	30	6	8	966.4	118	80	011.40.800
922	678	100	20	10	878	722	22	30	6	10	968	94	80	012.40.800
1022	778	100	90	10	978	822	22	30	6	8	1062.4	130	80	011.40.900
1022	778	100	90	10	978	822	22	30	6	10	1068	104	80	012.40.900
1122	878	100	90	10	1078	922	22	36	6	10	1188	116	80	011.40.1000
1122	878	100	90	10	1078	922	22	36	6	12	1185.6	96	80	012.40.1000

Crane Slewing Bearing,Turntable Slewing Ring Bearing,Excavator Turntable Slewing Ring Bearing,,Four Point Slewing Ring Bearing

Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.lsjgbearing.com