Tag Archives: rod bearing

China Hard Chrome Plated S HRC62-65 Drive Shaft Gcr15 S45c Material Induction Rod Bar Motion Bearing Transmission Linear Shaft drive shaft coupling

Product Description

The linear shaft, also title as linear optical axis, is a product that has the guiding perform of the sliding bearing and can carry out linear motion.
Linear Shaft Function

Things Linear shaft Adaptable linear shaft Hollow linear shaft
Material CK45, SUJ2 CK45 SUJ2
Warmth remedy Induction hardened Not hardened Induction hardened
Surface hardness HRC58±2 HRC15±3 HRC60±2
Area treated Challenging chrome plated Hard chrome plated Difficult chrome plated
Precision h7, g6, h6 h7, g6 h7, g6, h6
Roundness Max3.0µm Max3.0µm Max3.0µm
Straightness Max5.0µm Max5.0µm Max5.0µm
Chrome thickness twenty-30µm 30µm 30µm
Roughness Max1.5µm Max1.5µm Max1.5µm
Method mechanized Threading, decreased shaft diameter,coaxial holes drilled and tapped, flats-one or multiple, crucial way, snap ring grooves, radial holes drilled and tapped, chamfer
Application Linear shaft are extensively utilised in numerous linear movement programs these kinds of as cylinder rods, computerized precision printers, computerized reducing devices and industrial robots.

Linear Shaft Product

Model SF(C) Diameter ФD(mm) Diameter tolerance μm(g6) Straightness tolerance μm/m Surface roughness Effective hardening depth(mm) Chamfer at each conclude (mm) Weight kg/m Max length mm
standard/S Precision/S
SF(C)3 3 -2~-eight 60~-one hundred/m .8~ 1.six .4~ 0.8 > 1. 0.three .06 300
SF(C)4 4 -4~-twelve .1 400
SF(C)five 5 .16 500
SF(C)six 6 .23 600
SF(C)eight 8 -5~-fourteen 0.five .4 1000
SF(C)10 ten 100~-a hundred and fifty/m .62 1500
SF(C)12 twelve -6~-seventeen .89 2500
SF(C)13 thirteen 1.04 3000
SF(C)16 16 0.seven 1.fifty eight 3000
SF(C)20 20 -7~-20 > 1.5 two.forty seven 3000
SF(C)25 25 three.eighty five 3000
SF(C)thirty thirty > 2. 1 five.55 3000
SF(C)35 35 -9~-25 seven.55 4000
SF(C)40 40 > 2.five 9.87 4000
SF(C)fifty fifty 1~1.five fifteen.4 5000
SF(C)60 60 -ten~-29 > 3. 22.2 5000
SF(C)eighty eighty 39.five 5000
SF(C)a hundred 100 -twelve~-34 1.5 61.seven 6000
SF(C)a hundred and twenty 120 88.eight 6000
SF(C)one hundred fifty a hundred and fifty -fourteen~-39 139 6000

Merchandise Particulars
Our Company

US $1-99
/ Meter
|
1 Meter

(Min. Order)

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Material: Gcr15 S45c
Load: Drive Shaft
Stiffness & Flexibility: Flexible Shaft
Journal Diameter Dimensional Accuracy: H7, G6, H6
Axis Shape: Straight Shaft
Shaft Shape: Real Axis

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Samples:
US$ 10/Meter
1 Meter(Min.Order)

|
Request Sample

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Customization:

###

Items Linear shaft Flexible linear shaft Hollow linear shaft
Material CK45, SUJ2 CK45 SUJ2
Heat treatment Induction hardened Not hardened Induction hardened
Surface hardness HRC58±2 HRC15±3 HRC60±2
Surface treated Hard chrome plated Hard chrome plated Hard chrome plated
Precision h7, g6, h6 h7, g6 h7, g6, h6
Roundness Max3.0µm Max3.0µm Max3.0µm
Straightness Max5.0µm Max5.0µm Max5.0µm
Chrome thickness 20-30µm 30µm 30µm
Roughness Max1.5µm Max1.5µm Max1.5µm
Process mechanized Threading, reduced shaft diameter,coaxial holes drilled and tapped, flats-single or multiple, key way, snap ring grooves, radial holes drilled and tapped, chamfer
Application Linear shaft are widely used in many linear motion systems such as cylinder rods, automatic precision printers, automatic cutting machines and industrial robots.

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Model SF(C) Diameter ФD(mm) Diameter tolerance μm(g6) Straightness tolerance μm/m Surface roughness Effective hardening depth(mm) Chamfer at both end (mm) Weight kg/m Max length mm
standard/S Precision/S
SF(C)3 3 -2~-8 60~-100/m 0.8~ 1.6 0.4~ 0.8 > 1.0 0.3 0.06 300
SF(C)4 4 -4~-12 0.1 400
SF(C)5 5 0.16 500
SF(C)6 6 0.23 600
SF(C)8 8 -5~-14 0.5 0.4 1000
SF(C)10 10 100~-150/m 0.62 1500
SF(C)12 12 -6~-17 0.89 2500
SF(C)13 13 1.04 3000
SF(C)16 16 0.7 1.58 3000
SF(C)20 20 -7~-20 > 1.5 2.47 3000
SF(C)25 25 3.85 3000
SF(C)30 30 > 2.0 1 5.55 3000
SF(C)35 35 -9~-25 7.55 4000
SF(C)40 40 > 2.5 9.87 4000
SF(C)50 50 1~1.5 15.4 5000
SF(C)60 60 -10~-29 > 3.0 22.2 5000
SF(C)80 80 39.5 5000
SF(C)100 100 -12~-34 1.5 61.7 6000
SF(C)120 120 88.8 6000
SF(C)150 150 -14~-39 139 6000
US $1-99
/ Meter
|
1 Meter

(Min. Order)

###

Material: Gcr15 S45c
Load: Drive Shaft
Stiffness & Flexibility: Flexible Shaft
Journal Diameter Dimensional Accuracy: H7, G6, H6
Axis Shape: Straight Shaft
Shaft Shape: Real Axis

###

Samples:
US$ 10/Meter
1 Meter(Min.Order)

|
Request Sample

###

Customization:

###

Items Linear shaft Flexible linear shaft Hollow linear shaft
Material CK45, SUJ2 CK45 SUJ2
Heat treatment Induction hardened Not hardened Induction hardened
Surface hardness HRC58±2 HRC15±3 HRC60±2
Surface treated Hard chrome plated Hard chrome plated Hard chrome plated
Precision h7, g6, h6 h7, g6 h7, g6, h6
Roundness Max3.0µm Max3.0µm Max3.0µm
Straightness Max5.0µm Max5.0µm Max5.0µm
Chrome thickness 20-30µm 30µm 30µm
Roughness Max1.5µm Max1.5µm Max1.5µm
Process mechanized Threading, reduced shaft diameter,coaxial holes drilled and tapped, flats-single or multiple, key way, snap ring grooves, radial holes drilled and tapped, chamfer
Application Linear shaft are widely used in many linear motion systems such as cylinder rods, automatic precision printers, automatic cutting machines and industrial robots.

###

Model SF(C) Diameter ФD(mm) Diameter tolerance μm(g6) Straightness tolerance μm/m Surface roughness Effective hardening depth(mm) Chamfer at both end (mm) Weight kg/m Max length mm
standard/S Precision/S
SF(C)3 3 -2~-8 60~-100/m 0.8~ 1.6 0.4~ 0.8 > 1.0 0.3 0.06 300
SF(C)4 4 -4~-12 0.1 400
SF(C)5 5 0.16 500
SF(C)6 6 0.23 600
SF(C)8 8 -5~-14 0.5 0.4 1000
SF(C)10 10 100~-150/m 0.62 1500
SF(C)12 12 -6~-17 0.89 2500
SF(C)13 13 1.04 3000
SF(C)16 16 0.7 1.58 3000
SF(C)20 20 -7~-20 > 1.5 2.47 3000
SF(C)25 25 3.85 3000
SF(C)30 30 > 2.0 1 5.55 3000
SF(C)35 35 -9~-25 7.55 4000
SF(C)40 40 > 2.5 9.87 4000
SF(C)50 50 1~1.5 15.4 5000
SF(C)60 60 -10~-29 > 3.0 22.2 5000
SF(C)80 80 39.5 5000
SF(C)100 100 -12~-34 1.5 61.7 6000
SF(C)120 120 88.8 6000
SF(C)150 150 -14~-39 139 6000

What is a drive shaft?

If you notice a clicking noise while driving, it is most likely the driveshaft. An experienced auto mechanic will be able to tell you if the noise is coming from both sides or from one side. If it only happens on one side, you should check it. If you notice noise on both sides, you should contact a mechanic. In either case, a replacement driveshaft should be easy to find.
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The drive shaft is a mechanical part

A driveshaft is a mechanical device that transmits rotation and torque from the engine to the wheels of the vehicle. This component is essential to the operation of any driveline, as the mechanical power from the engine is transmitted to the PTO (power take-off) shaft, which hydraulically transmits that power to connected equipment. Different drive shafts contain different combinations of joints to compensate for changes in shaft length and angle. Some types of drive shafts include connecting shafts, internal constant velocity joints, and external fixed joints. They also contain anti-lock system rings and torsional dampers to prevent overloading the axle or causing the wheels to lock.
Although driveshafts are relatively light, they need to handle a lot of torque. Torque applied to the drive shaft produces torsional and shear stresses. Because they have to withstand torque, these shafts are designed to be lightweight and have little inertia or weight. Therefore, they usually have a joint, coupling or rod between the two parts. Components can also be bent to accommodate changes in the distance between them.
The drive shaft can be made from a variety of materials. The most common material for these components is steel, although alloy steels are often used for high-strength applications. Alloy steel, chromium or vanadium are other materials that can be used. The type of material used depends on the application and size of the component. In many cases, metal driveshafts are the most durable and cheapest option. Plastic shafts are used for light duty applications and have different torque levels than metal shafts.

It transfers power from the engine to the wheels

A car’s powertrain consists of an electric motor, transmission, and differential. Each section performs a specific job. In a rear-wheel drive vehicle, the power generated by the engine is transmitted to the rear tires. This arrangement improves braking and handling. The differential controls how much power each wheel receives. The torque of the engine is transferred to the wheels according to its speed.
The transmission transfers power from the engine to the wheels. It is also called “transgender”. Its job is to ensure power is delivered to the wheels. Electric cars cannot drive themselves and require a gearbox to drive forward. It also controls how much power reaches the wheels at any given moment. The transmission is the last part of the power transmission chain. Despite its many names, the transmission is the most complex component of a car’s powertrain.
The driveshaft is a long steel tube that transmits mechanical power from the transmission to the wheels. Cardan joints connect to the drive shaft and provide flexible pivot points. The differential assembly is mounted on the drive shaft, allowing the wheels to turn at different speeds. The differential allows the wheels to turn at different speeds and is very important when cornering. Axles are also important to the performance of the car.

It has a rubber boot that protects it from dust and moisture

To keep this boot in good condition, you should clean it with cold water and a rag. Never place it in the dryer or in direct sunlight. Heat can deteriorate the rubber and cause it to shrink or crack. To prolong the life of your rubber boots, apply rubber conditioner to them regularly. Indigenous peoples in the Amazon region collect latex sap from the bark of rubber trees. Then they put their feet on the fire to solidify the sap.
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it has a U-shaped connector

The drive shaft has a U-joint that transfers rotational energy from the engine to the axle. Defective gimbal joints can cause vibrations when the vehicle is in motion. This vibration is often mistaken for a wheel balance problem. Wheel balance problems can cause the vehicle to vibrate while driving, while a U-joint failure can cause the vehicle to vibrate when decelerating and accelerating, and stop when the vehicle is stopped.
The drive shaft is connected to the transmission and differential using a U-joint. It allows for small changes in position between the two components. This prevents the differential and transmission from remaining perfectly aligned. The U-joint also allows the drive shaft to be connected unconstrained, allowing the vehicle to move. Its main purpose is to transmit electricity. Of all types of elastic couplings, U-joints are the oldest.
Your vehicle’s U-joints should be inspected at least twice a year, and the joints should be greased. When checking the U-joint, you should hear a dull sound when changing gears. A clicking sound indicates insufficient grease in the bearing. If you hear or feel vibrations when shifting gears, you may need to service the bearings to prolong their life.

it has a slide-in tube

The telescopic design is a modern alternative to traditional driveshaft designs. This innovative design is based on an unconventional design philosophy that combines advances in material science and manufacturing processes. Therefore, they are more efficient and lighter than conventional designs. Slide-in tubes are a simple and efficient design solution for any vehicle application. Here are some of its benefits. Read on to learn why this type of shaft is ideal for many applications.
The telescopic drive shaft is an important part of the traditional automobile transmission system. These driveshafts allow linear motion of the two components, transmitting torque and rotation throughout the vehicle’s driveline. They also absorb energy if the vehicle collides. Often referred to as foldable driveshafts, their popularity is directly dependent on the evolution of the automotive industry.
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It uses a bearing press to replace worn or damaged U-joints

A bearing press is a device that uses a rotary press mechanism to install or remove worn or damaged U-joints from a drive shaft. With this tool, you can replace worn or damaged U-joints in your car with relative ease. The first step involves placing the drive shaft in the vise. Then, use the 11/16″ socket to press the other cup in far enough to install the clips. If the cups don’t fit, you can use a bearing press to remove them and repeat the process. After removing the U-joint, use a grease nipple Make sure the new grease nipple is installed correctly.
Worn or damaged U-joints are a major source of driveshaft failure. If one of them were damaged or damaged, the entire driveshaft could dislocate and the car would lose power. Unless you have a professional mechanic doing the repairs, you will have to replace the entire driveshaft. Fortunately, there are many ways to do this yourself.
If any of these warning signs appear on your vehicle, you should consider replacing the damaged or worn U-joint. Common symptoms of damaged U-joints include rattling or periodic squeaking when moving, rattling when shifting, wobbling when turning, or rusted oil seals. If you notice any of these symptoms, take your vehicle to a qualified mechanic for a full inspection. Neglecting to replace a worn or damaged u-joint on the driveshaft can result in expensive and dangerous repairs and can cause significant damage to your vehicle.

China Hard Chrome Plated S HRC62-65 Drive Shaft Gcr15 S45c Material Induction Rod Bar Motion Bearing Transmission Linear Shaft     drive shaft coupling	China Hard Chrome Plated S HRC62-65 Drive Shaft Gcr15 S45c Material Induction Rod Bar Motion Bearing Transmission Linear Shaft     drive shaft coupling
editor by czh 2022-11-25

China best Bearing Steel Straight Line Optical Shaft Cylindrical CZPT Rail Cross Chrome Hard Shaft Round Rod Optical Shaft According to The Drawings Customized Processing with Hot selling

Solution Description

Product Description

Straight line shaft is a product that can be manufactured into straight line motion since of the guiding function of sliding bearing.

The necessary circumstances of linear movement program are: easy layout, best overall performance, reduced upkeep price, durable resources, higher-frequency heat treatment method, accurate
Exterior diameter dimension, roundness, true flatness and surface area treatment, etc.
Design design: diameter 5- 607
The material of carbon metal
Hardness HRC60 ± 2
Hardening thickness
.8 mm – 3 mm
Size -6000mm (if you require far more than 6000mm, we can reverse relationship for you)
Precision g6
The roughness is inside 1.5μm
Straightness 1.5μm 100mm (Rmax)
Other straight shaft kinds reliable shaft, hollow shaft, threaded shaft, stainless metal shaft
Other supplies bearing metal GCr15, carbon metal 45#, SUS440C
We are a expert bearing company in China, large top quality bearings can be personalized in accordance to OEM and according to your demands

Range of application

 

one. The reliable shaft

Generally applicable to industrial robots, as professional measuring devices, healthcare devices, precision device tools, aircraft shafts, pneumatic mandrel transferring areas.

2. The hollow shaft

With the positive aspects of decreasing the weight and simplifying the construction of the gear, the internal measuring wire, compressed air, and lubricating oil and hydraulic oil can be worn again.

three, stainless metal shaft

Normally appropriate for substances, seawater and so on

Employed as element of a measurement in the existence of a compound.

Unique processing shaft after heat therapy finishing, all designs are challenging chrome plated automation tools.
 

Unique processing

1.The size of the

We can provide straight spools with diameters φ5mm-φ150mm. Greatest length up to 6000 mm.

When you have unique specifications for length, we can meet your processing requirements of diverse lengths.

When you call for a lot more than 6000mm, we can reverse relationship for you.

two. Particular processing

When you have unique needs for processing. This kind of as thread, with the shaft gap drilling tapping, radial hole drilling tapping, shaft diameter diameter, and so on., we can method for you, these specific machines soon after warmth treatment method and difficult chromium treatment method, to make sure the accuracy of merchandise.

Ship your comprehensive sketches or blueprints to us for quotation and motion, reply to us right after you locate our factory price excellent for processing.
 

Thorough Images

Business Profile

 

ZHangZhoug HangZhou KaiYaDe bearing co., LTD. Is a have many years experience of linear motion merchandise expert producers. We specialized in the production of straight axis, linear information, ball screw, linear bearings, linear guidebook, ball screw stop assist, linear information, CAM follower and of very good high quality and aggressive cost. My company is located in HangZhou town, zHangZhoug province, shut to HangZhou port and HangZhou metropolis.
Goods are extensively utilized in precision machinery, health and fitness equipment, printing machinery, packaging equipment, health-related machinery, foods equipment, textile equipment and connected equipment. Goods market effectively in North The us, Western Europe, Australia, southeast Asia, the Center East, South The united states and other regions.

FAQ

1. Are you a manufacturing facility or buying and selling company?
We are the most aggressive value and high high quality skilled producers, has twelve a long time of experience.
two. What is your item variety?
Specializing in the creation of straight axis, linear bearings, linear manual, linear information, ball screw, linear movement device this sort of as CAM follower.
three. Do you supply OEM&ODM services?
B: of course. Welcome OEM, ODM
four. How can I get some samples?
We are really honored to give samples. You want to shell out the freight and some sample payment.
5. How is the high quality handle of your manufacturing facility?
We uphold the tenet of “top quality is the long term”, we have passed CE certification, we have stringent good quality manage processes.
six. How can I get quotation?
You can send out beneath quotation or send out e-mail to us. You can speak to us right by TM or WhatsApp and Skype as you like. If you have an crisis, you should contact us at any time.
 

 

Go to the Manufacturing unit environment

 

How to inform if your driveshaft demands changing

What is the lead to of the unbalanced travel shaft? Unstable U-joint? Your automobile may make clicking noises although driving. If you can listen to it from the two sides, it may be time to hand it above to the mechanic. If you are not sure, read on to understand much more. The good news is, there are numerous methods to notify if your driveshaft demands replacing.

unbalanced

An unbalanced driveshaft can be the resource of strange noises and vibrations in your motor vehicle. To correct this issue, you must get in touch with a specialist. You can attempt a quantity of issues to correct it, including welding and changing the bodyweight. The subsequent are the most common methods. In addition to the methods above, you can use standardized weights to stability the driveshaft. These standardized weights are connected to the shaft by welders.
An unbalanced travel shaft typically makes lateral vibrations per revolution. This variety of vibration is normally triggered by a ruined shaft, lacking counterweights, or a foreign item trapped on the push shaft. On the other hand, torsional vibrations occur 2 times for every revolution, and they are brought on by shaft stage shifts. Finally, crucial pace vibration occurs when the RPM of the travel shaft exceeds its rated ability. If you suspect a driveshaft difficulty, check out the adhering to:
Manually altering the imbalance of a generate shaft is not the best task. To steer clear of the problems of guide balancing, you can pick to use standardized weights. These weights are fixed on the outer circumference of the generate shaft. The operator can manually position the bodyweight on the shaft with unique resources, or use a robot. Even so, manual balancers have many down sides.
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unstable

When the angular velocity of the output shaft is not consistent, it is unstable. The angular velocity of the output shaft is .004 at ph = 29.5 and 1.9 at t = 1.9. The angular velocity of the intermediate shaft is not a difficulty. But when it is unstable, the torque applied to it is way too significantly for the device. It may be a great idea to check out the stress on the shaft.
An unstable push shaft can cause a whole lot of sounds and mechanical vibration. It can guide to untimely shaft tiredness failure. CZPT research the result of shaft vibration on the rotor bearing method. They investigated the impact of flex coupling misalignment on the vibration of the rotor bearing system. They suppose that the vibrational response has two components: x and y. Nevertheless, this method has constrained application in several conditions.
Experimental final results display that the presence of cracks in the output shaft may mask the unbalanced excitation traits. For instance, the presence of superharmonic peaks on the spectrum is characteristic of cracks. The presence of cracks in the output shaft masks unbalanced excitation qualities that cannot be detected in the transient response of the enter shaft. Figure 8 exhibits that the frequency of the rotor will increase at vital velocity and decreases as the shaft passes the all-natural frequency.

Unreliable

If you might be having difficulties driving your car, possibilities are you have run into an unreliable driveshaft. This sort of drivetrain can result in the wheels to stick or not switch at all, and also restrict the all round management of the car. What ever the explanation, these problems need to be settled as shortly as achievable. Listed here are some indicators to look for when diagnosing a driveshaft fault. Let’s take a nearer search.
The initial symptom you could notice is an unreliable drive shaft. You could truly feel vibrations, or listen to noises under the automobile. Dependent on the cause, it could be a damaged joint or a damaged shaft. The very good news is that driveshaft repairs are typically fairly low-cost and take much less time than a total drivetrain replacement. If you might be not positive what to do, CZPT has a guide to replacing the U-connector.
One of the most frequent signs of an unreliable driveshaft is clanging and vibration. These appears can be caused by worn bushings, loose U-joints, or broken middle bearings. This can cause significant vibration and sound. You can also really feel these vibrations by way of the steering wheel or the flooring. An unreliable driveshaft is a symptom of a bigger issue.
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Unreliable U-joints

A vehicle with an unreliable U-joint on the travel shaft can be hazardous. A bad u-joint can avert the car from driving effectively and might even result in you trouble. Unreliable u-joints are low-cost to substitute and you ought to try out receiving areas from good quality makers. Unreliable U-joints can trigger the automobile to vibrate in the chassis or gear lever. This is a certain indicator that your automobile has been neglected in routine maintenance.
Replacing a U-joint is not a difficult activity, but it demands special tools and a good deal of elbow grease. If you do not have the proper resources, or you happen to be unfamiliar with mechanical terminology, it is best to look for the assist of a mechanic. A specialist mechanic will be in a position to correctly evaluate the issue and suggest an proper resolution. But if you never feel assured sufficient, you can change your own U-connector by following a few straightforward steps.
To ensure the vehicle’s driveshaft is not broken, check the U-joint for use and lubrication. If the U-joint is worn, the metal parts are most likely to rub in opposition to every single other, leading to use. The sooner a dilemma is identified, the faster it can be solved. Also, the lengthier you wait, the more you get rid of on repairs.

damaged travel shaft

The driveshaft is the component of the car that connects the wheels. If the driveshaft is destroyed, the wheels may cease turning and the vehicle could gradual down or quit moving completely. It bears the excess weight of the vehicle itself as effectively as the load on the highway. So even a slight bend or break in the push shaft can have dire consequences. Even a piece of loose metal can turn into a deadly missile if dropped from a automobile.
If you listen to a screeching sound or growl from your automobile when shifting gears, your driveshaft could be damaged. When this occurs, damage to the u-joint and too much slack in the generate shaft can result. These circumstances can additional damage the drivetrain, which includes the entrance 50 %. You ought to exchange the driveshaft as before long as you discover any indicators. Following changing the driveshaft, you can start off seeking for indications of wear.
A knocking seem is a indication of damage to the travel shaft. If you hear this seem even though driving, it could be thanks to worn couplings, ruined propshaft bearings, or damaged U-joints. In some instances, the knocking sound can even be brought on by a ruined U-joint. When this happens, you may possibly need to have to substitute the total driveshaft, necessitating a new one particular.
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Routine maintenance charges

The price of fixing a driveshaft may differ extensively, dependent on the type and trigger of the problem. A new driveshaft charges between $300 and $1,300, such as labor. Restoring a damaged driveshaft can price anywhere from $two hundred to $three hundred, based on the time required and the type of components needed. Symptoms of a damaged driveshaft consist of unresponsiveness, vibration, chassis noise and a stationary auto.
The 1st issue to take into account when estimating the value of fixing a driveshaft is the sort of motor vehicle you have. Some autos have far more than a single, and the components employed to make them might not be suitable with other automobiles. Even if the identical car has two driveshafts, the ruined ones will value more. Fortunately, several automobile restore retailers offer cost-free estimates to mend ruined driveshafts, but be mindful that this kind of operate can be difficult and expensive.

China best Bearing Steel Straight Line Optical Shaft Cylindrical CZPT Rail Cross Chrome Hard Shaft Round Rod Optical Shaft According to The Drawings Customized Processing     with Hot sellingChina best Bearing Steel Straight Line Optical Shaft Cylindrical CZPT Rail Cross Chrome Hard Shaft Round Rod Optical Shaft According to The Drawings Customized Processing     with Hot selling