Precision Ground Ball Screw
1. High Reliability
Ball screws are based on product technology accumulated over the years, and are managed under a strict quality assurance system from material, heat treatment, manufacturing, inspection to shipment, resulting in a high degree of reliability.
2.Smooth movement
Ball screws, with higher efficiency than conventional screws, require less than 30% of torque and can easily convert linear motion into rotary motion. The ball screw maintains smooth movement characteristics even when preloaded.
3. No backlash and high rigidity
Ball screws with Gothic arch groove shape and axial clearance adjusted to very small can be easily rotated. The pre-pressure adjustment between one or two nuts eliminates the axial clearance, which makes it have the proper rigidity to meet the usage conditions.
4. Excellent durability
Based on the production technology of ball screws accumulated for many years, we can supply durable products by adopting rigorous materials and highly heat treatment and processing technology. products with excellent durability.
Product description
The lead accuracy of precision ball screws (CO grade~C5 grade) is based on the JIS standard and is defined by four characteristics (E, e, e300, e2π). The definition and allowable values of each characteristic are shown in Fig. 1.3.1 and Tables 1.3.1~1.3.3. For the cumulative lead error of general ball screws C7 and C10, only the tolerance value of the maximum width of 300mm within the range of the effective thread length and e300 in Table 1.3.3 are specified, which are 0.05mm and 0.21mm respectively.
Parameters
Model Number | Lead accuracy etc. grade | Direction of threading | Number of teeth | Standard Screw Code | Applicable nuts Type | ||
external diameter(d) | lead time | | diameter of a pearl(Da) | R L | ||||
4 | 1 | 0.8 | C7,C5,C3 | R | 1 | SCR00401 | K |
6 | 1 | 0.8 | C7,C5,C3 | R | 1 | SCR00601 | K |
8 | 1 | 0.8 | C7,C5,C3 | R/L | 1 | SCR00801 | K |
2 | 1.2 | C7,C5,C3 | R/L | 1 | SCR00802 | K | |
2.5 | 1.2 | C7,C5,C3 | R | 1 | SCR00825 | K,BSH | |
10 | 2 | 1.2 | C7,C5,C3 | R/L | 1 | SCR01002 | K,BSH |
4 | 2 | C7,C5,C3 | R | 1 | SCR01004 | K,BSH | |
12 | 2 | 1.2 | C7,C5,C3 | R/L | 1 | SCR01202 | K |
4 | 2.5 | C7,C5,C3 | R | 1 | SCR01204 | U,BSH | |
5 | 2.5 | C7,C5,C3 | R | 1 | SCR01205-A | V,U,BSH,H,A | |
10 | 2.5 | C7,C5,C3 | R | 2 | SCR01210-B | V | |
14 | 2 | 1.2 | C7,C5,C3 | R/L | 1 | SCR01402 | K |
4 | 2.5 | C7,C5,C3 | R | 1 | SCR01404 | BSH | |
16 | 2 | 1.2 | C7,C5,C3 | R/L | 1 | SCR01602 | K |
4 | 2.381 | C7,C5,C3 | R | 1 | SCR01604(N) | V,I,U,BSH | |
5 | 3.175 | C7,C5,C3 | R/L | 1 | SCR01605 | V,NI,NU.BSH | |
10 | 3.175 | C7,C5,C3 | R/L | 2 | SCR01610 | V,NI,NU,BSH | |
16 | 2.778 | C7,C5,C3 | R | 2 | SCR01616 | Y | |
32 | 2.778 | C7,C5,C3 | R | 2 | SCR01632 | Y | |
20 | 2 | 1.2 | C7,C5,C3 | R | 1 | SCR02002 | K |
4 | 2.381 | C7,C5,C3 | R | 1 | SCR02004(N) | V,I,U | |
5 | 3.175 | C7,C5,C3 | R/L | 1 | SCR02005 | V,NI,NU,BSH,H,A | |
10 | 3.969 | C7,C5,C3 | R | 1 | SCR02010 | V | |
20 | 3.175 | C7,C5,C3 | R | 2 | SCR02020 | V,Y,H,A | |
40 | 3.175 | C7,C5,C3 | R | 2 | SCR02040 | Y | |
25 | 2 | 1.2 | C7,C5,C3 | R | 1 | SCR02502 | K |
4 | 2.381 | C7,C5,C3 | R | 1 | SCR02504(N) | I,U | |
5 | 3.175 | C7,C5,C3 | R/L | 1 | SCR02505 | V,NI,NU,BSH,H,A | |
6 | 3.969 | C7,C5,C3 | R | 1 | SCR02506 | V,U | |
8 | 4.762 | C7,C5,C3 | R | SCR02508 | V,U | ||
10 | 4.762 | C7,C5,C3 | R/L | 1 | SCR02510-A | NI,NU,BSH | |
10 | 6.35 | C7,C5,C3 | R | 1 | SCR02510-B | V | |
25 | 3.969 | C7,C5,C3 | R | 2 | SCR02525 | Y | |
50 | 3.969 | C7,C5,C3 | R | 2 | SCR02550 | Y | |
32 | 4 | 2.381 | C7,C5,C3 | R | 1 | SCR03204(N) | V,I,U |
5 | 3.175 | C7,C5,C3 | R/L | SCR03205 | V,NI,NU,M,H,A | ||
6 | 3.969 | C7,C5,C3 | R | 1 | SCR03206 | V,U | |
8 | 4.762 | C7,C5,C3 | R | 1 | SCR03208 | V,U | |
10 | 6.35 | C7,C5,C3 | R/L | 1 | SCR03210 | V,NI,NU | |
20 | 6.35 | C7,C5,C3 | R | 1 | SCR03220 | V | |
32 | 4.762 | C7,C5,C3 | R | 2 | SCR03232 | Y | |
64 | 4.762 | C7,C5,C3 | R | 2 | SCR03264 | Y | |
Ball screw mounting accuracy
(1) Measure the circumferential deflection value of the radius direction of the screw support part in relation to the axis A of the threaded groove surface.
(2) Measure the coaxiality of the mounting part relative to the axis F of the screw support part.
(3) Relative to the screw shaft support part of the axis E, determination of the support part of the end face of the right angle.
(4) Relative to the screw axis G, determine the straightness of the reference surface of the nut or the mounting surface of the flange.
(5) Measure the coaxiality of the circumference of the outer edge of the nut (cylindrical type) with respect to the screw axis A.
(6) Measure the parallelism of the outer edge of the nut (flush mounting surface) with respect to the screw axis C.
(7) Total deflection in the radial direction of the screw axis.
The accuracy items described herein are based on JISB 1191 and 1192.
Precautions for the use of ball screws
1. Ball screws are precision components, please pay special attention not to make sharp objects or knives hit the surface of the teeth, as well as the assembly of ball screws need to avoid knocking or collision abrasion, at the same time need to pay attention not to the separation of the nut and the screw or over-travelling, the nut travel, if it is detached from the screw will result in the fall of the ball, if accidentally caused by the fall, please do not force to put back, which is prone to cause the ball screw jammed, please contact with the ball screw specialist. Please contact our specialists.
2. If you need to remove the nut and re-install it, you must use a tube with an outside diameter smaller than the bottom diameter of the screw, please turn the nut into the conversion tube to make sure that the ball will not fall out.
3. When using ball screws, it is necessary to pay attention to adequate lubrication, if the lubrication is not sufficient, it will contact with the metal, resulting in increased friction and wear, resulting in malfunction or shortened life.
4. The lubricant used for ball screws can be divided into two types: lubricant and grease. Generally in maintenance, grease can increase the dynamic friction torque linearly with the increase of rotary speed, more than 3-5m/min, it is better to use oil lubrication. However, do not forget that the use of grease has also appeared to reach 10m, minutes of instances; as far as equipment is concerned, there are also applicable to the lower cost of grease. Generally speaking, in order to give full play to the function of the ball screw, a lubricant of about 5 m/min is the most appropriate choice.
FAQ:
Q: What is the producing process?
A: Production process including raw material cutting, machine processing,grinding, accessories cleaning, assemble, cleaning, oil coating,cover pressing, testing, package.
Q: How to control the products quality?
A: Combining advanced equipment and strict management, we provide high standard and quality bearings for our customers all over the world.
Q: What is the transportation?
A: If small quantity, we suggest to send by express, such as DHL, UPS,TNT FEDEX. If large amount, by air or sea shipping.
Q: How about the shipping charge?
A: We will be free of domestic shipping charge from your freight forwarder in China.
Q: Can you provide OEM service?
A: Yes, we provide OEM service. Which means size, quantity, design,packing solution, etc will depend on your requests; and your logo will be customized on our products.
Q: Could you tell me the delivery time of your goods?
A: Generally it is 3-5 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to the quantity.
Q: What about the packaging of your products?
A: Normally we use standard commercial package, we also have our own brand packing or customized package as per customers' requests.
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