China 3.175*6.35*2.78 mm Sr144zz P4 Grade Stainless Steel 50000 Rpm Medical Handpiece Air Turbine Dental Bearing wheel bearing

Item Description

3.one hundred seventy five*6.35*2.78 mm SR144ZZ P4 quality stainless steel 5rpm

Stock 

Massive

SR144TLZWN for W&H (W&H handpiece TE-ninety eight PB use) ,BIEN AIR Status PB

1Material                                 (Balls and Rings) Flanged outer ring functions Basic Bearing code Angular speak to bearing Kind Material(Cage) Appearance attribute Material (Closure) Width Material (balls) Balls Quantity Bearings of Dental Speed Handpiece Nnmbering Method
1 2 3 4 5 6 7 8 9 10
S F R144 K1 K2 TL Ti TL K G Z Z1 W W02 N (8)
                                                   
                                    No:ten (8)-8 balls are taken                      Absence of image -7 balls are taken.
                                         
                                  No:9 N-Ball content is Si4N3                       Absence of image – Ball content is 9Cr18Mo(AISI440C).
                                     
                            No:eight W-Width of both internal and outer ring are 2.78mm                               W02-Width of outer ring is 2.38mm and width of inner ring is 2.78mm(see figure 16)                                  Absence of symbol – Both inner and outer ring are 2.38mm.
                                 
                          No:7 Absence of image -Open Bearing.                           Z-Bearing is with one defend(see determine 2)                 Z1-Bearing outer and defend are integral (see figure 3).
                             
                    No:six K-Outer rings with phase(see determine eleven)                           G-Outer rings with recess(see determine 21).
                         
                 No:5 TL-Polyimide(Black)                                                               Ti-Textolite.                                                                             TA-Textolite.Polyimide (yellow)   
                   
          No:four Absence of a image – Deep groove bearing.                                                   K1-Angular make contact with bearing with  stepped inner ring (see figure 4)                    K2-Angular speak to bearing with counterbored outer ring (see figure 5).
           
        No:3 Basic bearing code(inch).
           
      No:2 1)When width of outer ring is 2.38mm ,the width of capped edge is .6mm(see figure 6)            2) When width of outer ring is 2.78mm, the width of capped edge .8mm(see figure 6)              3)When outer ring is with recess ,the width of capped edge is .45mm(see figure21).
           
  No:1 S -Rings and balls are made in 9Cr18Mo Stainless Stell (AISI440C).
         

NO PART Variety DIMENSION SPECIFICATION
OUT RING      COVER Metal BALL CERAMIC BALL
1 SR144TL ¢6.35×¢3.175×2.38      
2 SR144TLN ¢6.35×¢3.175×2.38      
three SR144TLZ ¢6.35×¢3.175×2.38    
four SR144TLZN ¢6.35×¢3.175×2.38    
5 SR144TLK ¢6.35×¢5.98×¢3.175×2.38 Side Stage    
6 SR144TLKN ¢6.35×¢5.98×¢3.175×2.38 Aspect Action    
seven SR144TLKZ ¢6.35×¢5.98×¢3.175×2.38 Facet Stage  
eight SR144TLKZN ¢6.35×¢5.98×¢3.175×2.38 Facet Stage  
9 SR144TLW ¢6.35×¢3.175×2.seventy eight      
ten SR144TLWN ¢6.35×¢3.175×2.seventy eight      
11 SR144TLZW ¢6.35×¢3.175×2.seventy eight    
12 SR144TLZNW ¢6.35×¢3.175×2.seventy eight    
thirteen SR144TLKW ¢6.35×¢5.98×¢3.175×2.78 Facet Step    
14 SR144TLKNW ¢6.35×¢5.98×¢3.175×2.78 Side Step    
fifteen SR144TLKZW ¢6.35×¢5.98×¢3.175×2.seventy eight Side Step  
sixteen SR144TLKZNW ¢6.35×¢5.98×¢3.175×2.seventy eight Side Step  
seventeen SFR144TLZN ¢6.35×¢7.518×¢3.175×2.38 FLANGE  
eighteen SFR144TLZ ¢6.35×¢7.518×¢3.175×2.38 FLANGE  
19 SFR144TLZW ¢6.35×¢7.518×¢3.175×2.78 FLANGE  
20 SFR144TLZWN ¢6.35×¢7.518×¢3.175×2.seventy eight FLANGE  
21 R2-5ZZ ¢7.938×¢3.175×3.571    
Remark   S-Steel RING   TL-CAGE MATERIAL   Z–SIGE COVER   N-CERAMIC BALL                         
SR144-STHangZhouRD         K-Facet STEP     F-FLANGE

 

Organization info:

HangZhou Terry Equipment Co.Ltd is a specialist provider of bearings and transmission products.We are BV verified supplier and ten 12 months golden provider on alibaba.
We are engaged in bearing and transmission items exceeds fourteen several years now, our key merchandise are kinds of Bearings , bore size from 1mm to 1000mm , the two inch dimensions and metric are available . U- Joint Cross, Chains, Sprocket, Coupling and linear merchandise are our strike goods also . Supplying sector transmission solutions is our duty. 

 Why Pick US ?

US $1.58-1.68
/ Piece
|
100 Pieces

(Min. Order)

###

Contact Angle: No Angular
Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Stainless Steel

###

Samples:
US$ 2/Piece
1 Piece(Min.Order)

|
Request Sample

###

Product’s name
3.175*6.35*2.78 mm SR144ZZ P4 grade stainless steel 50000 RPM medical handpiece air turbine dental bearing 
Model
SR144ZZ
Size
3.175*6.35*2.78 mm
Cage material
TorLon(black)
Ball material
Si3N4 ceramic 
Rotating speed
350000rpm-400000rpm
Stock 
Large
SR144TLZWN for W&H (W&H handpiece TE-98 PB use) ,BIEN AIR PRESTIGE PB

###

1Material                                 (Balls and Rings) Flanged outer ring features Basic Bearing code Angular contact bearing Type Material(Cage) Appearance feature Material (Closure) Width Material (balls) Balls Number Bearings of Dental Speed Handpiece Nnmbering System
1 2 3 4 5 6 7 8 9 10
S F R144 K1 K2 TL Ti TL K G Z Z1 W W02 N (8)
                                                   
                                    No:10 (8)-8 balls are taken;                      Absence of symbol -7 balls are taken.
                                         
                                  No:9 N-Ball material is Si4N3;                       Absence of symbol – Ball material is 9Cr18Mo(AISI440C).
                                     
                            No:8 W-Width of both inner and outer ring are 2.78mm;                               W02-Width of outer ring is 2.38mm and width of inner ring is 2.78mm(see figure 16);                                  Absence of symbol – Both inner and outer ring are 2.38mm.
                                 
                          No:7 Absence of symbol -Open Bearing.                           Z-Bearing is with single shield(see figure 2);                 Z1-Bearing outer and shield are integral (see figure 3).
                             
                    No:6 K-Outer rings with stage(see figure 11);                           G-Outer rings with recess(see figure 21).
                         
                 No:5 TL-Polyimide(Black);                                                               Ti-Textolite.                                                                             TA-Textolite.Polyimide (yellow);   
                   
          No:4 Absence of a symbol – Deep groove bearing.                                                   K1-Angular contact bearing with  stepped inner ring (see figure 4);                    K2-Angular contact bearing with counterbored outer ring (see figure 5).
           
        No:3 Basic bearing code(inch).
           
      No:2 1)When width of outer ring is 2.38mm ,the width of capped edge is 0.6mm(see figure 6);            2) When width of outer ring is 2.78mm, the width of capped edge 0.8mm(see figure 6);              3)When outer ring is with recess ,the width of capped edge is 0.45mm(see figure21).
           
  No:1 S -Rings and balls are made in 9Cr18Mo Stainless Stell (AISI440C).
         

###

NO PART NUMBER DIMENSION SPECIFICATION
OUT RING      COVER STEEL BALL CERAMIC BALL
1 SR144TL ¢6.35×¢3.175×2.38      
2 SR144TLN ¢6.35×¢3.175×2.38      
3 SR144TLZ ¢6.35×¢3.175×2.38    
4 SR144TLZN ¢6.35×¢3.175×2.38    
5 SR144TLK ¢6.35×¢5.98×¢3.175×2.38 SIDE STEP    
6 SR144TLKN ¢6.35×¢5.98×¢3.175×2.38 SIDE STEP    
7 SR144TLKZ ¢6.35×¢5.98×¢3.175×2.38 SIDE STEP  
8 SR144TLKZN ¢6.35×¢5.98×¢3.175×2.38 SIDE STEP  
9 SR144TLW ¢6.35×¢3.175×2.78      
10 SR144TLWN ¢6.35×¢3.175×2.78      
11 SR144TLZW ¢6.35×¢3.175×2.78    
12 SR144TLZNW ¢6.35×¢3.175×2.78    
13 SR144TLKW ¢6.35×¢5.98×¢3.175×2.78 SIDE STEP    
14 SR144TLKNW ¢6.35×¢5.98×¢3.175×2.78 SIDE STEP    
15 SR144TLKZW ¢6.35×¢5.98×¢3.175×2.78 SIDE STEP  
16 SR144TLKZNW ¢6.35×¢5.98×¢3.175×2.78 SIDE STEP  
17 SFR144TLZN ¢6.35×¢7.518×¢3.175×2.38 FLANGE  
18 SFR144TLZ ¢6.35×¢7.518×¢3.175×2.38 FLANGE  
19 SFR144TLZW ¢6.35×¢7.518×¢3.175×2.78 FLANGE  
20 SFR144TLZWN ¢6.35×¢7.518×¢3.175×2.78 FLANGE  
21 R2-5ZZ ¢7.938×¢3.175×3.571    
Remark   S-STEEL RING   TL-CAGE MATERIAL   Z–SIGE COVER   N-CERAMIC BALL                         
SR144-STANDARD         K-SIDE STEP     F-FLANGE
US $1.58-1.68
/ Piece
|
100 Pieces

(Min. Order)

###

Contact Angle: No Angular
Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Stainless Steel

###

Samples:
US$ 2/Piece
1 Piece(Min.Order)

|
Request Sample

###

Product’s name
3.175*6.35*2.78 mm SR144ZZ P4 grade stainless steel 50000 RPM medical handpiece air turbine dental bearing 
Model
SR144ZZ
Size
3.175*6.35*2.78 mm
Cage material
TorLon(black)
Ball material
Si3N4 ceramic 
Rotating speed
350000rpm-400000rpm
Stock 
Large
SR144TLZWN for W&H (W&H handpiece TE-98 PB use) ,BIEN AIR PRESTIGE PB

###

1Material                                 (Balls and Rings) Flanged outer ring features Basic Bearing code Angular contact bearing Type Material(Cage) Appearance feature Material (Closure) Width Material (balls) Balls Number Bearings of Dental Speed Handpiece Nnmbering System
1 2 3 4 5 6 7 8 9 10
S F R144 K1 K2 TL Ti TL K G Z Z1 W W02 N (8)
                                                   
                                    No:10 (8)-8 balls are taken;                      Absence of symbol -7 balls are taken.
                                         
                                  No:9 N-Ball material is Si4N3;                       Absence of symbol – Ball material is 9Cr18Mo(AISI440C).
                                     
                            No:8 W-Width of both inner and outer ring are 2.78mm;                               W02-Width of outer ring is 2.38mm and width of inner ring is 2.78mm(see figure 16);                                  Absence of symbol – Both inner and outer ring are 2.38mm.
                                 
                          No:7 Absence of symbol -Open Bearing.                           Z-Bearing is with single shield(see figure 2);                 Z1-Bearing outer and shield are integral (see figure 3).
                             
                    No:6 K-Outer rings with stage(see figure 11);                           G-Outer rings with recess(see figure 21).
                         
                 No:5 TL-Polyimide(Black);                                                               Ti-Textolite.                                                                             TA-Textolite.Polyimide (yellow);   
                   
          No:4 Absence of a symbol – Deep groove bearing.                                                   K1-Angular contact bearing with  stepped inner ring (see figure 4);                    K2-Angular contact bearing with counterbored outer ring (see figure 5).
           
        No:3 Basic bearing code(inch).
           
      No:2 1)When width of outer ring is 2.38mm ,the width of capped edge is 0.6mm(see figure 6);            2) When width of outer ring is 2.78mm, the width of capped edge 0.8mm(see figure 6);              3)When outer ring is with recess ,the width of capped edge is 0.45mm(see figure21).
           
  No:1 S -Rings and balls are made in 9Cr18Mo Stainless Stell (AISI440C).
         

###

NO PART NUMBER DIMENSION SPECIFICATION
OUT RING      COVER STEEL BALL CERAMIC BALL
1 SR144TL ¢6.35×¢3.175×2.38      
2 SR144TLN ¢6.35×¢3.175×2.38      
3 SR144TLZ ¢6.35×¢3.175×2.38    
4 SR144TLZN ¢6.35×¢3.175×2.38    
5 SR144TLK ¢6.35×¢5.98×¢3.175×2.38 SIDE STEP    
6 SR144TLKN ¢6.35×¢5.98×¢3.175×2.38 SIDE STEP    
7 SR144TLKZ ¢6.35×¢5.98×¢3.175×2.38 SIDE STEP  
8 SR144TLKZN ¢6.35×¢5.98×¢3.175×2.38 SIDE STEP  
9 SR144TLW ¢6.35×¢3.175×2.78      
10 SR144TLWN ¢6.35×¢3.175×2.78      
11 SR144TLZW ¢6.35×¢3.175×2.78    
12 SR144TLZNW ¢6.35×¢3.175×2.78    
13 SR144TLKW ¢6.35×¢5.98×¢3.175×2.78 SIDE STEP    
14 SR144TLKNW ¢6.35×¢5.98×¢3.175×2.78 SIDE STEP    
15 SR144TLKZW ¢6.35×¢5.98×¢3.175×2.78 SIDE STEP  
16 SR144TLKZNW ¢6.35×¢5.98×¢3.175×2.78 SIDE STEP  
17 SFR144TLZN ¢6.35×¢7.518×¢3.175×2.38 FLANGE  
18 SFR144TLZ ¢6.35×¢7.518×¢3.175×2.38 FLANGE  
19 SFR144TLZW ¢6.35×¢7.518×¢3.175×2.78 FLANGE  
20 SFR144TLZWN ¢6.35×¢7.518×¢3.175×2.78 FLANGE  
21 R2-5ZZ ¢7.938×¢3.175×3.571    
Remark   S-STEEL RING   TL-CAGE MATERIAL   Z–SIGE COVER   N-CERAMIC BALL                         
SR144-STANDARD         K-SIDE STEP     F-FLANGE

What is a bushing?

If you’ve ever wondered what an enclosure is, you’ve come to the right place. This article will provide an overview of different types of housings, including air-insulated, oil-impregnated porous bronze, and epoxy-impregnated capacitor cells. After reading this article, you will be better equipped to make an informed choice about the type of bushings your truck needs.
bushing

air insulating sleeve

When choosing bushings for your electrical application, you need to look for bushings with long-lasting insulation. In addition to being durable, bushings must have the correct design shape and material to remain effective over time. Porcelain was used in early casing designs and was chosen for indoor and outdoor applications due to its low cost and low linear expansion. Porcelain also requires a lot of metal fittings and flexible seals to remain effective.
Solid bushings have a center conductor and a porcelain or epoxy insulator. They are used in low voltage electrical applications such as small distribution transformers and circuit switches. However, their low radial capacity limits their use in high-voltage applications, so they are limited to circuit switches and other low-voltage equipment. The electrical service duty of the bushing determines the type of insulation required.
Another type of air-insulated bushing is made of conductive metal, which reduces heat transfer. This design enables it to operate over a range of temperature conditions. Additionally, air-insulated bushings are generally more effective than gas-insulated bushings in a range of applications. The main difference between air-insulated bushings and gas-insulated bushings is the insulating material. While gas-insulated bushings are usually made of high-quality materials, high-quality materials are still preferred in some applications.
Elliott # B series insulators are 25 kV class and pressure molded cycloaliphatic epoxy resins. They feature knurled brass inserts and 16 UNC threads. If you choose this type, make sure it matches the exact diameter of your Elliott Class 25 kv air insulated bushing. These insulators also provide overall shielding and require openings to fit inch diameters.
There are two types of air-insulated bushings: air-to-air and oil-to-oil. Oil is a stronger dielectric than air, and air-to-oil bushings are used to connect atmospheric air to oil-filled equipment. They are available for solid and capacitive hierarchies. So, which one is right for you? Just choose the right insulation to make your equipment as efficient as possible.

Oil Impregnated Porous Bronze Bushings

Oil-impregnated porous bronze (PbB) bushings are one of the best options for lubricating metal bearings. Lubrication is maintained even in high temperature applications as oil penetrates into the pores of the bronze. They are also self-lubricating and maintenance-free. Manufactured by CZPT, the Oil Impregnated Bronze Bushing is a powder metal process that is uniformly lubricated by a uniform oil film. This type of bearing is one of the most efficient in terms of precision performance.
One major difference between oil-impregnated bronze bushings and standard cast bronze bushings is their manufacturing process. Oil-impregnated bronze bushings are pressed from powder and then sintered to form a hardened part. This method is very effective for high-volume manufacturing, but it also has its limitations. Oil-impregnated bronze bushings are cheaper and more efficient, but they have mechanical limitations.
The production of oil-impregnated porous bronze bushings is simple. Powder bronze bushings are pressed and vacuum sealed by forcing oil into the pores. The low stress properties of oil-impregnated bronze bushings make them easier to manufacture in high volume. It also does not require additional lubrication. However, oil-impregnated porous bronze bushings have relatively low mechanical strength and are not recommended for applications where high temperatures are present.
Oil Impregnated Porous Bronze is also known as BPPB. Unlike traditional oil-impregnated bronze bushings, BPPB bushings have a high oil retention capacity. This means they will last a long time and you will save a lot of maintenance costs. But be careful. Porous bronze bushings can only last so long without oil.
Oil-impregnated bronze bushings are a good choice if dimensional consistency is important. BP bronze bushings have the same C dimension as solid metal bushings. While the CZPT is a ghost of the past, there are now many powder metal manufacturers producing BP housings. Their C of F values ​​range from 0.04 to 0.08.
bushing

Epoxy Impregnated Capacitor Batteries

Epoxy impregnated condenser core sleeves are conductive paper used in air conditioning systems. The paper core is coated with epoxy resin and the insulating shell is silicone rubber. RIP bushings have excellent electrical properties, are fire resistant and are relatively small. However, the process of making these products is not easy and mistakes are common. These defects manifest as cracks or other structural damage in the capacitor cells.
RIF (Resin Impregnated) bushings feature a finely graded design. The capacitor core is made of glass fiber impregnated with epoxy resin. The outer insulation is made of silicone rubber sheds glued directly to the capacitor core. These bushings are designed for small clearances, so no filler material is required.
In order to determine whether the RIP sleeve is void-free and dry, the insulating paper must be impregnated with epoxy resin. The process is similar to making conventional condenser core sleeves, but with greater flexibility and robustness. The main difference between RIP bushings and conventional insulators is the epoxy content.
Capacitor grading bushings are also available. These bushings increase the electric field at the ends of the capacitor core plates. The higher the temperature, the higher the electric field. These properties make resin-impregnated capacitor mandrel sleeves reliable. However, capacitor grade bushings have higher electric fields than nonlinear bushings.
The capacitor core of the present invention is made by winding paper around the winding tube 3 . The paper may contain an intermediate conductive foil. The winding tube is then covered with electrical insulator. Afterwards, the capacitor core 1 will be RIP and electrically connected to the electrical conductor 6 .
To further characterize the performance of RIPs, thermal shock current (TSC) was used to determine their trap parameters. Unmodified epoxy resin and nano-SiO2 modified RIP were tested. The RIP samples were polarized under a 2 kV/mm electric field at 333 K for 10 min and then subcooled to 193 K with liquid nitrogen. TSC curves were obtained at 3 K/min and 383 K.
bushing

plastic bushing

Plastic bushings are essential for many industries. They protect wires and other mechanical parts. They come in many shapes and sizes and are often used as adapters when connecting two pipes or tubes of different diameters. They are available in a variety of materials including rubber, steel and various other plastics. Most bushings are cylindrical or conical in shape and made of shock absorbing material. They slide on rods or pipes to provide low friction motion.
Plastic bushings can be made from a variety of materials, including phenolic, polyethylene, and nylon. While phenolic resins have long been the preferred choice for heavy-duty applications, nylon is the most commonly used lining plastic. Nylon has several advantages, including low friction, no lubrication, quiet operation, and low wear. In addition to these advantages, it is easy to form and cast. In order to obtain better mechanical properties, fillers such as molybdenum disulfide can be added to the material. Plus, filled nylon parts resist deformation at temperatures up to 300 degrees Fahrenheit.
Another benefit of plastic bushings is their low cost. Much cheaper than metal, plastic is a versatile material that can be used in a variety of industries. A quick installation and replacement process makes them the first choice for users who need to install new components quickly. Plus, plastic bushings don’t wear out as quickly as metal, which is another benefit. And because the wear rate of plastic bushings is predictable, manufacturers can easily replace them before they start to fail. And they last longer, so you save time and money.
Plastic bushings are widely used in machinery with sliding and rotating shaft components. They have excellent load-carrying capacity and anti-friction properties. They are essential to many industries, including construction, mining, agriculture, hydropower, transportation and food processing. They are easy to install and come in a variety of sizes and shapes. They are very durable and very reliable. They reduce machine wear and are less expensive than bearings.

China 3.175*6.35*2.78 mm Sr144zz P4 Grade Stainless Steel 50000 Rpm Medical Handpiece Air Turbine Dental Bearing     wheel bearingChina 3.175*6.35*2.78 mm Sr144zz P4 Grade Stainless Steel 50000 Rpm Medical Handpiece Air Turbine Dental Bearing     wheel bearing
editor by czh 2023-01-15

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