China Kr 30 Track Roller Cam Follower Krve Series Needle Bearing with Hot selling

Product Description

 

KR 30 Observe Roller Cam Follower KR series Needle Bearing

Description of KR30 Track Roller Cam Follower KR series Needle Bearing

Series Description
NATR Yoke type track rollers with axial guidance by washers,gap seal,with inner ring
NATR…PP Yoke type track rollers with additional sealing rings
NATV Yoke type track rollers with axial guidance by washers,full complement,gap seal,with inner ring
NATV…PP Yoke type track rollers with additional sealing rings
NUTR Yoke type track rollers with axial guidance by the rolling element,full complement,gap seal,with inner ring
KR Stud type track rollers with axial guidance by rid and washer,gap seal
KR…PP Stud type track rollers with sealing rings
KRE Stud type track rollers with eccentric collar
KRE…PP Stud type track rollers with eccentric collar and sealing rings
KRV Stud type track rollers with axial guidance by rid and washer,full complement, gap seal
KRV…PP Stud type track rollers with sealing rings
KRVE Stud type track rollers with eccentric collar
KRVE…PP Stud type track rollers with eccentric collar and sealing rings
NUKR Stud type track rollers with axial guidance by the rolling element,full complement, gap seals
NUKRE Stud type track rollers with eccentric collar
CF Stud type track rollers with cage ,the same as KR series

 
Catalogue of
thirty Track Roller Cam Follower KR series Needle Bearing

Outside 

Diameter

Bearing Designation and mass approx Borndary Dimensions

Without 

Eccentric 

Collar

 Mass

With 

Ecctric 

Coollar

 Mass D d C B B1 B2 G G1 M M1 C1 d2
mm   g   g mm
47 KR 47 386 KRE 47 405.5 47 twenty 24 66 40.5 9 M20×1.5 21 eight 4 .8 37
KR 47 PP 386 KRE 47 PP 405.five forty seven 20 24 sixty six forty.five 9 M20×1.5 21 8 four .eight 37
KRV 47 390 KRVE 47 409.5 forty seven twenty 24 66 40.5 9 M20×1.5 21 8 4 .eight 37
KRV 47 PP 390 KRVE 47 PP 409.5 47 20 24 sixty six 40.five nine M20×1.five 21 8 4 .eight 37
NUKR 47 380 NUKPE 47 399.five forty seven 20 24 sixty six 40.five nine M20×1.5 21 8 4 .eight 27
52 KR 52 461 KRE 40 480.five fifty two 20 24 66 forty.5 nine M20×1.five 21 8 4 .8 37
KR 52 PP 461 KRE 52 PP 480.five fifty two twenty 24 66 40.5 9 M20×1.5 21 eight 4 .eight 37
KRV 52 465 KRVE 52 484.5 52 20 24 sixty six 40.5 9 M20×1.5 21 8 four .eight 37
KRV 52 PP 465 KRVE 52 PP 484.five fifty two 20 24 sixty six 40.5 nine M20×1.5 21 eight 4 .8 37
NUKR 52 450 NUKPE 52 469.5 fifty two twenty 24 sixty six forty nine.five 9 M20×1.5 21 eight 4 .eight 31
62 KR 62 790 KRE 62 818.two 62 24 29 eighty 49.five 11 M24×1.five twenty five eight 4 .eight forty four
KR 62 PP 790 KRE 62 PP 818.2 sixty two 24 29 80 forty nine.5 eleven M24×1.5 twenty five 8 four .eight forty four
KRV 62 802 KRVE 62 830.2 sixty two 24 29 80 forty nine.5 eleven M24×1.five twenty five eight four .eight forty four
KRV 62 PP 802 KRVE 62 PP 830.2 sixty two 24 29 eighty forty nine.five eleven M24×1.five 25 eight four .eight 44
NUKR 62 795 NUKPE 62 823.five sixty two 24 29 80 forty nine.5 eleven M24×1.five 25 8 4 .eight 38
72 KR 72 1040 KRE 72 1068.two 72 24 29 80 49.5 eleven M20×1.5 25 eight four .8 forty four
KR 72 PP 1040 KRE 72 PP 1068.two 72 24 29 eighty 49.5 11 M24×1.5 25 eight four .8 forty four
KRV 72 1045 KRVE 72 1073.2 seventy two 24 29 80 forty nine.five 11 M24×1.five twenty five 8 four .8 forty four
KRV 72 PP 1045 KRVE 72 PP 1073.two 72 24 29 80 forty nine.five eleven M24×1.5 twenty five 8 four .eight 44
NUKR 72 1200 NUKPE 72 1038.2 seventy two 24 29 80 forty nine.five eleven M24×1.5 25 eight four .eight forty four
80 KR 80 1550 KRE 80 1610 eighty 30 35 100 63 15 M30×1.5 32 8 4 1 fifty three
KR 80 PP 1550 KRE 80 PP 1610 80 thirty 35 100 sixty three fifteen M30×1.5 32 eight four 1 53
KRV 80 1561 KRVE 80 1621 eighty thirty 35 one hundred sixty three fifteen M30×1.5 32 eight four one fifty three
KRV 80 PP 1561 KRVE 80 PP 1621 80 30 35 a hundred 63 15 M30×1.5 32 8 four one fifty three
NUKR 80 1800 NUKPE 80 1600 eighty thirty 35 a hundred 63 15 M30×1.five 32 8 4 one 47
85 KR 85 1740 KRE 85 1800 eighty five thirty 35 100 63 15 M30×1.five 32 eight 4 one 53
KR 85 PP 1740 KRE 85 PP 1800 85 thirty 35 one hundred sixty three 15 M30×1.five 32 8 4 one fifty three
90 KR 90 1950 KRE 90 2571 90 thirty 35 a hundred sixty three 15 M30×1.five 32 8 4 1 fifty three
KR 90 PP 1950 KRE 90 PP 2571 90 30 35 100 sixty three 15 M30×1.five 32 eight four one 53
KRV 90 1970 KRVE 90 2030 90 thirty 35 100 63 fifteen M30×1.5 32 eight 4 one fifty three
KRV 90 PP 1970 KRVE 90 PP 2030 ninety 30 35 100 63 fifteen M30×1.five 32 eight 4 one 53
NUKR 90 2300 NUKPE 90 2571 90 30 35 100 63 fifteen M30×1.five 32 eight four 1 47

Pictures 

 

 

US $4-5
/ Piece
|
1 Piece

(Min. Order)

###

Shipping Cost:

Estimated freight per unit.



To be negotiated

###

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)

###

Customization:

###

Series Description
NATR Yoke type track rollers with axial guidance by washers,gap seal,with inner ring
NATR…PP Yoke type track rollers with additional sealing rings
NATV Yoke type track rollers with axial guidance by washers,full complement,gap seal,with inner ring
NATV…PP Yoke type track rollers with additional sealing rings
NUTR Yoke type track rollers with axial guidance by the rolling element,full complement,gap seal,with inner ring
KR Stud type track rollers with axial guidance by rid and washer,gap seal
KR…PP Stud type track rollers with sealing rings
KRE Stud type track rollers with eccentric collar
KRE…PP Stud type track rollers with eccentric collar and sealing rings
KRV Stud type track rollers with axial guidance by rid and washer,full complement, gap seal
KRV…PP Stud type track rollers with sealing rings
KRVE Stud type track rollers with eccentric collar
KRVE…PP Stud type track rollers with eccentric collar and sealing rings
NUKR Stud type track rollers with axial guidance by the rolling element,full complement, gap seals
NUKRE Stud type track rollers with eccentric collar
CF Stud type track rollers with cage ,the same as KR series

###

Outside 

Diameter

Bearing Designation and mass approx Borndary Dimensions

Without 

Eccentric 

Collar

 Mass

With 

Ecctric 

Coollar

 Mass D d C B B1 B2 G G1 M M1 C1 d2
mm   g   g mm
47 KR 47 386 KRE 47 405.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KR 47 PP 386 KRE 47 PP 405.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KRV 47 390 KRVE 47 409.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KRV 47 PP 390 KRVE 47 PP 409.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
NUKR 47 380 NUKPE 47 399.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 27
52 KR 52 461 KRE 40 480.5 52 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KR 52 PP 461 KRE 52 PP 480.5 52 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KRV 52 465 KRVE 52 484.5 52 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KRV 52 PP 465 KRVE 52 PP 484.5 52 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
NUKR 52 450 NUKPE 52 469.5 52 20 24 66 49.5 9 M20×1.5 21 8 4 0.8 31
62 KR 62 790 KRE 62 818.2 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KR 62 PP 790 KRE 62 PP 818.2 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KRV 62 802 KRVE 62 830.2 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KRV 62 PP 802 KRVE 62 PP 830.2 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
NUKR 62 795 NUKPE 62 823.5 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 38
72 KR 72 1040 KRE 72 1068.2 72 24 29 80 49.5 11 M20×1.5 25 8 4 0.8 44
KR 72 PP 1040 KRE 72 PP 1068.2 72 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KRV 72 1045 KRVE 72 1073.2 72 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KRV 72 PP 1045 KRVE 72 PP 1073.2 72 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
NUKR 72 1200 NUKPE 72 1038.2 72 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
80 KR 80 1550 KRE 80 1610 80 30 35 100 63 15 M30×1.5 32 8 4 1 53
KR 80 PP 1550 KRE 80 PP 1610 80 30 35 100 63 15 M30×1.5 32 8 4 1 53
KRV 80 1561 KRVE 80 1621 80 30 35 100 63 15 M30×1.5 32 8 4 1 53
KRV 80 PP 1561 KRVE 80 PP 1621 80 30 35 100 63 15 M30×1.5 32 8 4 1 53
NUKR 80 1800 NUKPE 80 1600 80 30 35 100 63 15 M30×1.5 32 8 4 1 47
85 KR 85 1740 KRE 85 1800 85 30 35 100 63 15 M30×1.5 32 8 4 1 53
KR 85 PP 1740 KRE 85 PP 1800 85 30 35 100 63 15 M30×1.5 32 8 4 1 53
90 KR 90 1950 KRE 90 2010 90 30 35 100 63 15 M30×1.5 32 8 4 1 53
KR 90 PP 1950 KRE 90 PP 2010 90 30 35 100 63 15 M30×1.5 32 8 4 1 53
KRV 90 1970 KRVE 90 2030 90 30 35 100 63 15 M30×1.5 32 8 4 1 53
KRV 90 PP 1970 KRVE 90 PP 2030 90 30 35 100 63 15 M30×1.5 32 8 4 1 53
NUKR 90 2300 NUKPE 90 2020 90 30 35 100 63 15 M30×1.5 32 8 4 1 47
US $4-5
/ Piece
|
1 Piece

(Min. Order)

###

Shipping Cost:

Estimated freight per unit.



To be negotiated

###

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)

###

Customization:

###

Series Description
NATR Yoke type track rollers with axial guidance by washers,gap seal,with inner ring
NATR…PP Yoke type track rollers with additional sealing rings
NATV Yoke type track rollers with axial guidance by washers,full complement,gap seal,with inner ring
NATV…PP Yoke type track rollers with additional sealing rings
NUTR Yoke type track rollers with axial guidance by the rolling element,full complement,gap seal,with inner ring
KR Stud type track rollers with axial guidance by rid and washer,gap seal
KR…PP Stud type track rollers with sealing rings
KRE Stud type track rollers with eccentric collar
KRE…PP Stud type track rollers with eccentric collar and sealing rings
KRV Stud type track rollers with axial guidance by rid and washer,full complement, gap seal
KRV…PP Stud type track rollers with sealing rings
KRVE Stud type track rollers with eccentric collar
KRVE…PP Stud type track rollers with eccentric collar and sealing rings
NUKR Stud type track rollers with axial guidance by the rolling element,full complement, gap seals
NUKRE Stud type track rollers with eccentric collar
CF Stud type track rollers with cage ,the same as KR series

###

Outside 

Diameter

Bearing Designation and mass approx Borndary Dimensions

Without 

Eccentric 

Collar

 Mass

With 

Ecctric 

Coollar

 Mass D d C B B1 B2 G G1 M M1 C1 d2
mm   g   g mm
47 KR 47 386 KRE 47 405.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KR 47 PP 386 KRE 47 PP 405.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KRV 47 390 KRVE 47 409.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KRV 47 PP 390 KRVE 47 PP 409.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
NUKR 47 380 NUKPE 47 399.5 47 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 27
52 KR 52 461 KRE 40 480.5 52 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KR 52 PP 461 KRE 52 PP 480.5 52 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KRV 52 465 KRVE 52 484.5 52 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
KRV 52 PP 465 KRVE 52 PP 484.5 52 20 24 66 40.5 9 M20×1.5 21 8 4 0.8 37
NUKR 52 450 NUKPE 52 469.5 52 20 24 66 49.5 9 M20×1.5 21 8 4 0.8 31
62 KR 62 790 KRE 62 818.2 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KR 62 PP 790 KRE 62 PP 818.2 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KRV 62 802 KRVE 62 830.2 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KRV 62 PP 802 KRVE 62 PP 830.2 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
NUKR 62 795 NUKPE 62 823.5 62 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 38
72 KR 72 1040 KRE 72 1068.2 72 24 29 80 49.5 11 M20×1.5 25 8 4 0.8 44
KR 72 PP 1040 KRE 72 PP 1068.2 72 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KRV 72 1045 KRVE 72 1073.2 72 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
KRV 72 PP 1045 KRVE 72 PP 1073.2 72 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
NUKR 72 1200 NUKPE 72 1038.2 72 24 29 80 49.5 11 M24×1.5 25 8 4 0.8 44
80 KR 80 1550 KRE 80 1610 80 30 35 100 63 15 M30×1.5 32 8 4 1 53
KR 80 PP 1550 KRE 80 PP 1610 80 30 35 100 63 15 M30×1.5 32 8 4 1 53
KRV 80 1561 KRVE 80 1621 80 30 35 100 63 15 M30×1.5 32 8 4 1 53
KRV 80 PP 1561 KRVE 80 PP 1621 80 30 35 100 63 15 M30×1.5 32 8 4 1 53
NUKR 80 1800 NUKPE 80 1600 80 30 35 100 63 15 M30×1.5 32 8 4 1 47
85 KR 85 1740 KRE 85 1800 85 30 35 100 63 15 M30×1.5 32 8 4 1 53
KR 85 PP 1740 KRE 85 PP 1800 85 30 35 100 63 15 M30×1.5 32 8 4 1 53
90 KR 90 1950 KRE 90 2010 90 30 35 100 63 15 M30×1.5 32 8 4 1 53
KR 90 PP 1950 KRE 90 PP 2010 90 30 35 100 63 15 M30×1.5 32 8 4 1 53
KRV 90 1970 KRVE 90 2030 90 30 35 100 63 15 M30×1.5 32 8 4 1 53
KRV 90 PP 1970 KRVE 90 PP 2030 90 30 35 100 63 15 M30×1.5 32 8 4 1 53
NUKR 90 2300 NUKPE 90 2020 90 30 35 100 63 15 M30×1.5 32 8 4 1 47

Advantages and disadvantages of different types of bushings

Bushings are a simple but essential part of machinery with sliding or rotating shaft assemblies. This type of bearing is used in a wide variety of industries because its high load-carrying capacity and excellent anti-friction properties make it a necessity for construction, mining, hydropower, transportation and agricultural machinery. In addition to these applications, bushings also play a vital role in material handling and food processing. This article explores the various types of bushings available.
bushing

air casing

The air bushing forms a frictionless cylinder that applies the load to the rotating object. Bushings are used to measure torque and provide self-centering force in applications where linear motion is critical. The following are load equations that can be used to select the appropriate air sleeve for your application. To learn more about these air sleeves, read on. This article discusses the benefits and uses of air bushings in linear motion.
Bushings have many advantages over bearings. They are not prone to wear and corrosion. Unlike bearings, they can easily bypass conversion and inspection periods. Their high-quality design guarantees reliable machine performance, yet they are inexpensive and easy to replace. In many industries, air compressors are essential for sports. The air bushing eliminates friction, allowing the compressor to work more efficiently. They can also help eliminate the need for frictionless bearings and improve the overall efficiency of the machine.
Another type of air bearing is the cylindrical bushing. These are used for linear and aerostatic motion. Their low friction properties allow them to support radial loads without wearing out or damaging components. They are usually used for normal sized shafts. Air bushings have several components that can be used with other types of air bearings. Cylindrical air bearings have four o-ring grooves that allow them to be inserted into the structure. They are often used with other types of air bearings for smoother motion.

rubber bushing

If you’re looking to buy a new suspension system, you may be wondering if rubber or polyurethane is the right choice. Rubber is less expensive, but not without its drawbacks. Polyurethane is more durable and offers better handling and suspension. Rubber bushings also reduce road feel, while polyurethane isolates the driver from the road. Both materials will help you improve handling and alignment, but each has advantages and disadvantages.
Typically, rubber bushings are cylindrical components with metal inner and outer surfaces. These metals can be stainless steel, mild steel or aluminum. They are usually stress relieved and prestressed for maximum durability. They are designed to meet the exact specifications of a specific application. For example, shock-absorbing rubber bushings are cushioning pads made of polyurethane that absorb road bumps and noise.
Unlike polyurethane, rubber suspension bushings have a shorter lifespan than polyurethane. This is because rubber is more susceptible to damage from UV rays, road chemicals and oils. The rubber also stretches and warps due to the pressure of the road. The rubber bushing also squeaks, which can be cause for concern. But if the noise persists for a long time, it may be a sign that your vehicle needs a new suspension system.
The main reason why cars use rubber bushings is for shock absorption. During machine use, vibration and noise caused by the movement of parts can cause serious damage. To prevent this, rubber bushings act as shock absorbers and damping agents. Rubber bushings are an excellent choice for automakers, but they are also used in a variety of industrial settings.
bushing

Polyurethane bushing

If you want to make your vehicle handle better, polyurethane bushings may be the answer. They come in different shapes and sizes and can improve a wide range of areas. This article will explore the advantages and disadvantages of polyurethane bushings and their potential place in your car. However, before you decide to upgrade your suspension, you should understand the various advantages and disadvantages of polyurethane bushings.
The main difference between a polyurethane bushing and a rubber bushing is how the bushing rides on the suspension arm. Polyurethane bushings do not have faces that slide against each other like rubber bushings. This means they allow for more rotation and flexion, as well as consistent alignment of the control arms. Polyurethane bushings require lubrication, but only need to be lubricated every five years, much longer than equivalent rubber bushings.
Another difference between polyurethane and rubber bushings is hardness. The former has the least elasticity and is generally the most suitable for street use. While rubber bushings provide the best NVH quality, they are also notorious for changing suspension geometry. Rubber is known to be an excellent choice for street use, but polyurethane has a lifespan that far outlasts rubber.

bronze bushing

There are two main types of bronze bushings, sintered and cast. The latter require additional lubrication and are typically used in applications where powder metal products cannot be secured. The former is cheaper than the latter, but the process is more expensive. Bronze bushings can be used in environments where the material will be exposed to high temperature and vibration. For these reasons, the production process is relatively slow and expensive.
The strength of bronze is the main reason why they are so popular. Brass is a softer metal that deforms and corrodes easily. The bronze casing can withstand continuous immersion in water and can last for hundreds of years with little or no maintenance. However, it is important to note that this metal is not resistant to aggressive chemicals and requires regular maintenance to keep it in good condition.
Bronze bushings offer many advantages, including durability and aesthetics. Bronze bushings are available in a variety of sizes and can be ordered in imperial and metric sizes. They can be built to your specifications and are very durable. You can even custom order them if you want. And because they can be customized, they are an excellent choice for high-end applications. The quality of the bronze bushings is second to none.

Plastic bushing

Engineered composite plastic bushings have been shown to last longer than bronze bushings and have also been found to reduce maintenance costs by up to 40%. Plastic bushings have become the first choice for thousands of applications, including medical equipment, food processing machinery, pumps, and more. Bronze bushings are oil-impregnated, but their performance is limited by their inherent weaknesses: oil-impregnated bronze tends to develop high levels of capillary action and requires rotational motion to maintain an intact oil film. Low speed and intermittent use of bronze bushings can also hinder the ability of the lubricant to provide adequate lubrication.
Advantages of plastic bushings over metal include low friction, non-reactive surfaces, and long life. CZPT offers a variety of engineering plastics that outperform traditional metals in a range of applications. For example, nylon bushings resist wear while requiring little lubrication. In addition, polymer-shaped plastics are lightweight and highly resistant to aggressive cleaning agents and chemicals.
Besides being less expensive than metal bushings, plastic bushings offer many other advantages. They are very durable, have a low coefficient of friction, and are more wear-resistant than metal. Unlike metal, plastic bushings do not require lubrication and do not absorb dust and oil like metal bushings. They are lightweight, easy to maintain and last longer. This makes them an excellent choice for many applications.
bushing

Sleeve bearing

Sleeve bearings are simple pipes with matching components. They facilitate linear motion by absorbing friction and vibration. They can withstand heavy loads and work at high temperatures for long periods of time. Flange bearings are similar to sleeve bearings, but are enclosed and rotated in a housing unit. Sleeve bearings have higher load-carrying capacity and resistance to shock loads. Furthermore, they are lightweight and low cost.
Another name for sleeve bearings is babbitt radial bearings. These bearings are usually made of bronze and have straight inner and outer diameters. They are also impregnated with oil and can withstand radial loads. Typical uses for sleeve bearings are agriculture, automotive and machine tools. Sleeves can also be solid or cored material, depending on the intended use.
The type of sleeve bearing used in the bushing is important in determining which type of bushing to buy. Sleeve bearings are sized based on pressure and speed considerations. Typically, the PV limit is an upper bound on the combined pressure and velocity for a given casing material. In some cases, the sleeve bearing used in the bushing is the same as the plain bearing.
Sleeve bearings are simple in design and made from a variety of materials, including bronze and plastic. They are more affordable than metal, but plastic is still not inaudible. Plastic sleeve bearings will rattle like metal bearings if the gap between the two bushings is not accurate. Additionally, high temperature electronic painting can permanently thin the casing. The stainless steel backing provides a good surface for electronic painting and enhances abrasion resistance.

China Kr 30 Track Roller Cam Follower Krve Series Needle Bearing     with Hot sellingChina Kr 30 Track Roller Cam Follower Krve Series Needle Bearing     with Hot selling
editor by czh 2023-01-14

Recent Posts