Product Description

High Precision Deep Groove Ball Bearings for Auto Cars and Agricultural Machinery (6000)

 
Introduction:
 
Deep groove ball bearings is the most common bearing. Its simple structure, easy to use. Mainly used to bear radial load, but increases when the radial bearing clearance, with certain properties of angular contact ball bearings can handle radial and axial joint load. They should not be used in a high speed thrust ball bearings, they can be used to bear the pure axial load. With the same size compared to other types of bearings, such bearings friction coefficient is small, extreme high speed. However, the impact of intolerance, unfit to bear heavy loads.

Deep groove ball bearings for the steel cage more than stamping ribbon cage, large multi-use vehicles bearing metal solid cage.

Deep groove ball bearings is widely used in automobiles, tractors, machine tools, motors, pumps, agricultural machinery, textile machinery.
 
Some Models for your reference:
 

Bearing No.	I.D		O.D		W		Loading Rating(KN)		Steel Ball Parameter		Max Speed
	d		D		B		Dynamic	Static	No.	Size	Grease	Oil
	mm	inch	mm	inch	mm	inch	Cr	Cor		mm	r/min	r/min
6000	10	0.3937	26	1.5716	8	0.3150	4.55	1.95	7	4.763	29000	34000
6001	12	0.4724	28	1.1571	8	0.3150	5.10	2.39	8	4.763	26000	30000
6002	15	0.5906	32	1.2598	9	0.3543	5.60	2.84	9	4.763	22000	26000
6003	17	0.6693	35	1.3780	10	0.3937	6.80	3.35	10	4.763	20000	24000
6004	20	0.7874	42	1.6535	12	0.4724	9.40	5.05	9	6.350	18000	21000
6005	25	0.9843	47	1.8504	12	0.4724	10.10	5.85	10	6.350	15000	18000
6006	30	1.1811	55	2.1654	13	0.5118	13.20	8.30	11	7.144	13000	15000
6007	35	1.3780	62	2.4409	14	0.5512	16.00	10.30	11	7.938	12000	14000
6008	40	1.5748	68	2.6772	15	0.5906	16.80	11.50	12	7.938	10000	12000
6009	45	1.7717	75	2.9528	16	0.6299	21.00	15.10	12	8.731	9200	11000
6571	50	1.9685	80	3.1496	16	0.6299	21.80	16.60	13	8.731	8400	9800
6011	55	2.1654	90	3.5433	18	0.7087	28.30	21.20	12	11.000	7700	9000
6012	60	2.3622	95	3.7402	18	0.7087	29.50	23.20	13	11.000	7000	8300
6013	65	2.5591	100	3.9370	18	0.7087	30.50	25.20	13	11.112	6500	7700
6014	70	2.7559	110	4.3307	20	0.7874	38.00	31.00	13	12.303	6100	7100
6015	75	2.9528	115	4.5276	20	0.7874	39.50	33.50	14	12.303	5700	6700
6016	80	3.1496	125	4.9213	22	0.8661	47.50	40.00	14	13.494	5300	6200

Bearing No.	I.D		O.D		W		Loading Rating(KN)		Steel Ball Parameter		Max Speed
	d		D		B		Dynamic	Static	No.	Size	Grease	Oil
	mm	inch	mm	inch	mm	inch	Cr	Cor		mm	r/min	r/min
6200	10	0.3937	30	1.1811	9	0.3543	5.10	2.39	8	4.763	25000	30000
6201	12	0.4724	32	1.2598	10	0.3937	6.10	2.75	7	5.953	22000	26000
6202	15	0.5906	35	1.3780	11	0.4331	7.75	3.60	8	5.953	19000	23000
6203	17	0.6693	40	1.5748	12	0.4724	9.60	4.60	8	6.747	18000	21000
6204	20	0.7874	47	1.8504	14	0.5512	12.80	6.65	8	7.938	16000	18000
6205	25	0.9843	52	2.571	15	0.5906	14.00	7.85	9	7.938	13000	15000
6206	30	1.1811	62	2.4409	16	0.6299	19.50	11.30	9	9.525	11000	13000
6207	35	1.3780	72	2.8346	17	0.6693	25.70	15.30	9	11.112	9800	11000
6208	40	1.5748	80	3.1496	18	0.7087	29.10	17.80	9	12.000	8700	10000
6209	45	1.7717	85	3.3465	19	0.7480	32.50	20.40	10	12.000	7800	9200
6210	50	1.9685	90	3.5433	20	0.7874	35.00	23.20	10	12.700	7100	8300
6211	55	2.1654	100	3.9370	21	0.8268	43.50	29.20	10	14.288	6400	7600
6212	60	2.3622	110	4.3307	22	0.8661	52.50	36.00	10	15.081	6000	7000
6213	65	2.5591	120	4.7244	23	0.9055	57.50	40.00	10	16.669	5500	6500
6214	70	2.7559	125	4.9213	24	0.9449	62.00	44.00	11	16.462	5100	6000
6215	75	2.9528	130	5.1181	25	0.9843	66.00	49.50	11	17.462	4800	5600
6216	80	3.1496	140	5.5118	26	1.5716	72.50	53.00	11	18.256	4500	5300
6217	85	3.3465	150	5.9055	28	1.1571	83.50	64.00	11	19.844	4200	5000
6218	90	3.5433	160	6.2992	30	1.1811	96.00	71.50	10	22.225	4000	4700

Bearing No.	I.D		O.D		W		Loading Rating(KN)		Steel Ball Parameter		Max Speed
	d		D		B		Dynamic	Static	No.	Size	Grease	Oil
	mm	inch	mm	inch	mm	inch	Cr	Cor		mm	r/min	r/min
6300	10	0.3937	35	1.3780	11	0.4331	8.20	3.50	6	7.144	23000	27000
6301	12	0.4724	37	1.4567	12	0.4724	9.70	4.20	6	7.938	20000	24000
6302	15	0.5906	42	1.6535	13	0.5118	11.40	5.45	7	7.938	17000	21000
6303	17	0.6693	47	1.8504	14	0.5512	13.50	6.55	7	8.731	16000	19000
6304	20	0.7874	52	2.571	15	0.5906	15.90	7.90	7	9.525	14000	27000
6305	25	0.9843	62	2.4409	17	0.6693	21.20	10.90	7	11.500	12000	14000
6306	30	1.1811	72	2.8346	19	0.7480	26.70	15.00	8	12.000	10000	12000
6307	35	1.3780	80	3.1496	21	0.8268	33.50	19.10	8	13.494	8800	10000
6308	40	1.5748	90	3.5433	23	0.9055	40.50	24.00	8	15.081	7800	9200
6309	45	1.7717	100	3.9370	25	0.9843	53.00	32.00	8	17.462	7000	8200
6310	50	1.9685	110	4.3307	27	1.0630	62.00	38.50	8	19.050	6400	7500
6311	55	2.1654	120	4.7244	29	1.1417	71.50	45.00	8	20.638	5800	6800
6312	60	2.3622	130	5.1181	31	1.2205	82.00	52.00	8	22.225	5400	6300
6313	65	2.5591	140	5.5118	33	1.2992	92.50	60.00	8	24.000	4900	5800
6314	70	2.7559	150	5.9055	35	1.3780	104.00	68.00	8	25.400	4600	5400
6315	75	2.9528	160	6.2992	37	1.4567	113.00	77.00	8	26.988	4300	5000
6316	80	3.1496	170	6.6929	39	1.5354	123.00	86.50	8	28.575	4000	4700

 
Our Company

As a comprehensive industrial enterprise that integrates R & D and sales services, with over 20 years' experience, especially the guaranteed supplier of China Manufacturing Network, our factory covers an area of 10,000 square meters, which enables very quick delivery.
 
Owning the most advanced CNC automatic production line, automatic assembly line, and a varied of testing equipment, our bearings mainly cover NSK, NTN, KOYO, TIMKEN, NACHI, THK etc., which meets all low noise, low vibration, low friction, high precision, high sealed, high turning speed and long life requests.
 
Exhibition:

FAQ
 
SAMPLES
1.Samples quantity: 1-10 pcs are available.
2.Free samples: It depends on the model NO., material and quantity. Some of the bearings samples need client to pay   samples charge and shipping cost.
3. It's better to start your order with Trade Assurance to get full protection for your samples order.

CUSTOMIZED
The customized LOGO or drawing is acceptable for us.

MOQ
1.MOQ: 10 pcs mix different standard bearings.
2.MOQ:  5000 pcs customized your brand bearings.

OEM POLICY
1.We can printing your brand (logo,artwork)on the shield or laser engraving your brand on the shield.
2.We can custom your packaging according to your design
3.All copyright own by clients and we promised don't disclose any info.

SUPPORT
Please visit our 1Xihu (West Lake) Dis.in bearings website, we strongly encourage that you can communicate with us through email, thanks! 

 

Screw Shaft Features Explained

When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw's performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.

Threads

The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can't be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft's diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.

Lead

In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.

Pitch

The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another.
A screw's pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

Helix angle

The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
A screw's helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.

Size

The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2'' with a thread pitch of 1/4", and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.

Shape

Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws' main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
The screw shaft's diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw's overall size. Pitch and nominal diameter are important measurements for a screw's performance in a particular application.

Lubrication

In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.