Product Description

Single-row Angular contact ball bearings can sustain radial, axial or combined loads with the axial load being from 1 direction. The larger contact angle type has better axial load capacity while the smaller contact angle type has higher speed ratings. Available in bore dimension from 10 mm to 170 mm.

Common Options:
B — 40 degree contact angle
TVP– Polyamide Cage
MP– Machined Brass Cage
G– Flush Ground
 

 

 

 

 

 

ZheJiang CZPT Bearing Co.,ltd is a professional manufacturer of bearings, all kinds of rollers, with more than 15 years experience. Our factory is in ZheJiang and our export office is in ZheJiang . We have established long-term cooperative relations with customers in Canada, Mexico, the United States and other countries and regions. So we also hope to cooperate with you! We believe that our stable quality and competitive price will help you get more market and better development!

After years of development, our company has formed a set of effective and cooperative management models and our business philosophy. “Consider More From the Customer’s Aspect” is our service principle. As a qualified domestic & international trading company, our products are comprehensive and abundant. They are widely used in metallurgy, mining, petroleum, machinery, electric power, paper, grass and other fields. We sincerely hope that there will be more customers from different places to cooperate with our company, and we will provide top service.

We are very confident in our products, and we are sure that we can earn your trust!

 

6000 series deep groove ball bearings
Bearing No.	Boundary Dimensions(mm)			Basic Load Rating(N)		Weight(KG)
	d	D	B	Cr	Cor
604	4	12	4	960	350	0.571
605	5	14	5	1070	420	0.0037
606	6	17	6	1960	730	0.0069
607	7	19	6	2800	1060	0.0082
608	8	22	7	3290	1360	0.0129
609	9	24	7	3330	1410	0.016
6000	10	26	8	4160	1780	0.019
6001	12	28	8	5110	2380	0.571
6002	15	32	9	5590	2840	0.03
6003	17	35	10	6000	3250	0.039
6004	20	42	12	9390	5571	0.069
6005	25	47	12	10060	5860	0.08
6006	30	55	13	11900	7460	0.12
6007	35	62	14	16210	10420	0.16
6008	40	68	15	17030	11700	0.19
6009	45	75	16	21080	14780	0.25
6571	50	80	16	22000	16260	0.26
6011	55	90	18	31500	18400	0.39
6012	60	95	18	30000	23000	0.42
6013	65	100	18	32000	25000	0.44
6014	70	110	20	38000	31000	0.6
6015	75	115	20	38000	31000	0.64
6016	80	125	22	47500	40000	0.85
6017	85	130	22	47500	40000	0.89
6018	90	140	24	63800	59000	1.15
6019	95	145	24	66700	62300	1.2
6571	100	150	24	72500	70000	1.25
6200 Series Miniature Deep Groove Ball Bearing
Bearing No.	Boundary Dimensions(mm)			Basic Load Rating(N)		Weight(KG)
	d	D	B	Cr	Cor
624	4	13	5	1150	400	0.0032
625	5	16	5	1880	680	0.0051
626	6	19	6	2800	1060	0.
627	7	22	7	3290	1360	0.0131
628	8	24	8	3330	1410	0.017
629	9	26	8	4160	1780	0.0191
6200	10	30	9	5110	2380	0.032
6201	12	32	10	6180	3060	0.037
6202	15	35	11	7450	3700	0.045
6203	17	40	12	9560	4780	0.065
6204	20	47	14	12840	6650	0.11
6205	25	52	15	14571	7930	0.13
6206	30	62	16	19460	11310	0.2
6207	35	72	17	25670	15300	0.29
6208	40	80	18	29520	181400	0.37
6209	45	85	19	32500	20400	0.41
6210	50	90	20	35000	32300	0.46
6211	55	100	21	43500	29200	0.61
6212	60	110	22	52500	36000	0.78
6213	65	120	23	57200	45710	0.99
6214	70	125	24	62000	44000	1.05
6215	75	130	25	66000	49500	1.2
6216	80	140	26	72500	53000	1.4
6217	85	150	28	83500	64000	1.8
6218	90	160	30	96000	71500	2.15
6219	95	170	32	109000	82000	2.6
6220	100	180	34	122000	93000	3.15

 

 

 

Q:What the MOQ of your company?
A: In stock, MOQ is 1pc. 

Q:Could you accept OEM and customize?
A:YES, we can customize for you according to sample or drawing.

Q:Could you supply sample for free?
A:Yes, we can supply sample for free, you only need to pay for the shipping cost.

Q:Is you company factory or Trade Company?
A:We have our own factory ; our type is factory + trade.

Q:Could you tell me the material of your bearing?
A:We have chrome steel, and stainless steel, ceramic and carbon steel. 

Q:Could you offer door to door service?
A:Yes, by express (DHL, FEDEX, TNT, EMS, 4-10 days to your city.)

Q:What is your company payment terms?
A:T/T. Western Union, PayPal
   Small order TT, 100% full payment before shipping.
   If big order we can do 50% down payment or 30% down payment 70% Balance payment on copy of B/L, depends on the order.

Q:Could you tell me the delivery time of your goods?
A:If stock, in 7days or base on your order quantity.

What Are Screw Shaft Threads?

A screw shaft is a threaded part used to fasten other components. The threads on a screw shaft are often described by their Coefficient of Friction, which describes how much friction is present between the mating surfaces. This article discusses these characteristics as well as the Material and Helix angle. You’ll have a better understanding of your screw shaft’s threads after reading this article. Here are some examples. Once you understand these details, you’ll be able to select the best screw nut for your needs.

Coefficient of friction between the mating surfaces of a nut and a screw shaft

There are 2 types of friction coefficients. Dynamic friction and static friction. The latter refers to the amount of friction a nut has to resist an opposing motion. In addition to the material strength, a higher coefficient of friction can cause stick-slip. This can lead to intermittent running behavior and loud squeaking. Stick-slip may lead to a malfunctioning plain bearing. Rough shafts can be used to improve this condition.
The 2 types of friction coefficients are related to the applied force. When applying force, the applied force must equal the nut’s pitch diameter. When the screw shaft is tightened, the force may be removed. In the case of a loosening clamp, the applied force is smaller than the bolt’s pitch diameter. Therefore, the higher the property class of the bolt, the lower the coefficient of friction.
In most cases, the screwface coefficient of friction is lower than the nut face. This is because of zinc plating on the joint surface. Moreover, power screws are commonly used in the aerospace industry. Whether or not they are power screws, they are typically made of carbon steel, alloy steel, or stainless steel. They are often used in conjunction with bronze or plastic nuts, which are preferred in higher-duty applications. These screws often require no holding brakes and are extremely easy to use in many applications.
The coefficient of friction between the mating surfaces of t-screws is highly dependent on the material of the screw and the nut. For example, screws with internal lubricated plastic nuts use bearing-grade bronze nuts. These nuts are usually used on carbon steel screws, but can be used with stainless steel screws. In addition to this, they are easy to clean.

Helix angle

In most applications, the helix angle of a screw shaft is an important factor for torque calculation. There are 2 types of helix angle: right and left hand. The right hand screw is usually smaller than the left hand one. The left hand screw is larger than the right hand screw. However, there are some exceptions to the rule. A left hand screw may have a greater helix angle than a right hand screw.
A screw’s helix angle is the angle formed by the helix and the axial line. Although the helix angle is not usually changed, it can have a significant effect on the processing of the screw and the amount of material conveyed. These changes are more common in 2 stage and special mixing screws, and metering screws. These measurements are crucial for determining the helix angle. In most cases, the lead angle is the correct angle when the screw shaft has the right helix angle.
High helix screws have large leads, sometimes up to 6 times the screw diameter. These screws reduce the screw diameter, mass, and inertia, allowing for higher speed and precision. High helix screws are also low-rotation, so they minimize vibrations and audible noises. But the right helix angle is important in any application. You must carefully choose the right type of screw for the job at hand.
If you choose a screw gear that has a helix angle other than parallel, you should select a thrust bearing with a correspondingly large center distance. In the case of a screw gear, a 45-degree helix angle is most common. A helix angle greater than zero degrees is also acceptable. Mixing up helix angles is beneficial because it allows for a variety of center distances and unique applications.

Thread angle

The thread angle of a screw shaft is measured from the base of the head of the screw to the top of the screw’s thread. In America, the standard screw thread angle is 60 degrees. The standard thread angle was not widely adopted until the early twentieth century. A committee was established by the Franklin Institute in 1864 to study screw threads. The committee recommended the Sellers thread, which was modified into the United States Standard Thread. The standardized thread was adopted by the United States Navy in 1868 and was recommended for construction by the Master Car Builders’ Association in 1871.
Generally speaking, the major diameter of a screw’s threads is the outside diameter. The major diameter of a nut is not directly measured, but can be determined with go/no-go gauges. It is necessary to understand the major and minor diameters in relation to each other in order to determine a screw’s thread angle. Once this is known, the next step is to determine how much of a pitch is necessary to ensure a screw’s proper function.
Helix angle and thread angle are 2 different types of angles that affect screw efficiency. For a lead screw, the helix angle is the angle between the helix of the thread and the line perpendicular to the axis of rotation. A lead screw has a greater helix angle than a helical one, but has higher frictional losses. A high-quality lead screw requires a higher torque to rotate. Thread angle and lead angle are complementary angles, but each screw has its own specific advantages.
Screw pitch and TPI have little to do with tolerances, craftsmanship, quality, or cost, but rather the size of a screw’s thread relative to its diameter. Compared to a standard screw, the fine and coarse threads are easier to tighten. The coarser thread is deeper, which results in lower torques. If a screw fails because of torsional shear, it is likely to be a result of a small minor diameter.

Material

Screws have a variety of different sizes, shapes, and materials. They are typically machined on CNC machines and lathes. Each type is used for different purposes. The size and material of a screw shaft are influenced by how it will be used. The following sections give an overview of the main types of screw shafts. Each 1 is designed to perform a specific function. If you have questions about a specific type, contact your local machine shop.
Lead screws are cheaper than ball screws and are used in light-duty, intermittent applications. Lead screws, however, have poor efficiency and are not recommended for continuous power transmission. But, they are effective in vertical applications and are more compact. Lead screws are typically used as a kinematic pair with a ball screw. Some types of lead screws also have self-locking properties. Because they have a low coefficient of friction, they have a compact design and very few parts.
Screws are made of a variety of metals and alloys. Steel is an economical and durable material, but there are also alloy steel and stainless steel types. Bronze nuts are the most common and are often used in higher-duty applications. Plastic nuts provide low-friction, which helps reduce the drive torques. Stainless steel screws are also used in high-performance applications, and may be made of titanium. The materials used to create screw shafts vary, but they all have their specific functions.
Screws are used in a wide range of applications, from industrial and consumer products to transportation equipment. They are used in many different industries, and the materials they’re made of can determine their life. The life of a screw depends on the load that it bears, the design of its internal structure, lubrication, and machining processes. When choosing screw assemblies, look for a screw made from the highest quality steels possible. Usually, the materials are very clean, so they’re a great choice for a screw. However, the presence of imperfections may cause a normal fatigue failure.

Self-locking features

Screws are known to be self-locking by nature. The mechanism for this feature is based on several factors, such as the pitch angle of the threads, material pairing, lubrication, and heating. This feature is only possible if the shaft is subjected to conditions that are not likely to cause the threads to loosen on their own. The self-locking ability of a screw depends on several factors, including the pitch angle of the thread flank and the coefficient of sliding friction between the 2 materials.
One of the most common uses of screws is in a screw top container lid, corkscrew, threaded pipe joint, vise, C-clamp, and screw jack. Other applications of screw shafts include transferring power, but these are often intermittent and low-power operations. Screws are also used to move material in Archimedes’ screw, auger earth drill, screw conveyor, and micrometer.
A common self-locking feature for a screw is the presence of a lead screw. A screw with a low PV value is safe to operate, but a screw with high PV will need a lower rotation speed. Another example is a self-locking screw that does not require lubrication. The PV value is also dependent on the material of the screw’s construction, as well as its lubrication conditions. Finally, a screw’s end fixity – the way the screw is supported – affects the performance and efficiency of a screw.
Lead screws are less expensive and easier to manufacture. They are a good choice for light-weight and intermittent applications. These screws also have self-locking capabilities. They can be self-tightened and require less torque for driving than other types. The advantage of lead screws is their small size and minimal number of parts. They are highly efficient in vertical and intermittent applications. They are not as accurate as lead screws and often have backlash, which is caused by insufficient threads.