Product Description

Product: 

Unbraked Axle of 5Tons Square for Agri.Traile Off-road 

Product Parameters
Reference	square	Studs (qty/Ø)	PCD		Bearings	Axle load						Max.Overhang		Technical data
			A	B		25-30km/h		40km/h		60km/h		L	L’	C	E	F
	mm		mm	mm		1 Axle	2 Axles	1 Axle	2 Axles	1 Axle	2 Axles	mm		mm	mm	mm
354F	35	4/14 x 1,5	85	130	35714-35716	1000	–	900	–	–	–	200	–	164	56	35
404F	40	4/14 x 1,5	85	130	35715-35717	1500	–	1350	–	–	–	200	–	164	64	42
405F	40	5/16 x 1,5	94	140	35715-35717	1500	–	1350	–	–	–	200	–	173	64	52
404A	40	4/14 x 1,5	85	130	35715-35717	1500	1200	1350	1125	–	–	200	–	164	65	45
454A	45	4/14 x 1,5	85	130	35715-35718	2000	1650	1800	1500	1500	1400	210	–	165	79	37
455A	45	5/16 x 1,5	94	140	35715-35718	2000	1650	1800	1550	1500	1400	210	–	169	79	37
504F	50	4/14 x 1,5	85	130	35715-35719	3000	–	2700	–	–	–	180	–	172	65	52
505F	50	5/16 x 1,5	94	140	35715-35719	3000	–	2700	–	–	–	180	–	172	65	52
505A	50	5/16 x 1,5	94	140	35716-35719	3000	2500	2700	2250	2250	2100	180	–	168	86	47
506A	50	6/18 x 1,5	160	205	35716-35719	3000	2500	2700	2250	2250	2100	180	–	240	83	52
606XR	60	6/18 x 1,5	160	205	35718-35711	5000	4150	4500	4000	3750	3500	190	290	240	91	52
706X	70	6/18 x 1,5	160	205	35719-35713	6500	5400	5850	4900	4875	4550	230	330	260	115	37
806X	80	6/18 x 1,5	160	205	32211-35715	9100	7900	8200	7500	7500	6800	250	350	255	132	52
808X	80	8/18 x 1,5	220	275	32211-35715	9100	7900	8200	7500	7500	6800	250	350	324	132	55
906X	90	6/18 x 1,5	160	205	32211-32017	10000	8650	9000	8200	8200	7500	310	410	255	132	55
908X	90	8/18 x 1,5	220	275	32211-32017	10000	8650	9000	8200	8200	7500	310	410	324	132	55
908XR	90	8/18 x 1,5	220	275	32217-32217	11200	9750	15710	9200	9200	8400	290	390	325	131	74
910XR	90	10/22 x 1,5	280	335	32217-32217	11200	9750	15710	9200	9200	8400	290	390	380	131	74
1008X	100	8/18 x 1,5	220	275	32217-32217	13400	11600	12000	11000	11000	10000	320	420	325	131	74
1571X	100	10/22 x 1,5	280	335	32217-32217	13400	11600	12000	11000	11000	10000	320	420	380	131	74
1571XR	100	10/22 x 1,5	280	335	32219-32219	14500	12600	13000	11800	11800	10800	300	400	380	147	88
1110X	110	10/22 x 1,5	280	335	32219-32219	14500	12600	13000	11800	11800	10800	400	500	380	147	88
1210X	120	10/22 x 1,5	280	335	32219-32219	15000	13000	13500	13000	13000	11250	490	590	380	147	88
1510X (1)	150	10/22 x 1,5	280	335	32219-32219	15000	13000	13500	13000	13000	11250	500	600	380	147	88

FAQ:

Q. Are you manufacturer? What is the aim of your company?

A. Yes. CZPT Asia has been producing agricultural and industrial axles and suspensions since the year 2006. Our aim is to  
     provide only high quality Axles and Suspensions with accesories to global clients but with competitive prices.

Q. Where is your factory?

A. We are located in HangZhou, ZheJiang , China. Welcome to visit us.

Q. How many years have you been in this business line?

A. We have 20 years experience for production of Agricultural and Industrial products, Our products are enjoying good reputation
     from more than 20 countries.

Q. What is your brand?

A. ROC is our own brand, CZPT Asia is affiliated to the France CZPT Group (Est. 1971), it is a whole-owned subsidiary
    company of France CZPT Group in China. 

Q. Can you accept OEM ?

A. Yes, OEM is acceptable, We can sell products without ROC logo.

Q. How do you ensure the quality?

A. We have strict QC process:
1) Before production, Check strictly the raw material quality.
2) During the half production, We check the finished product quality.
3) Before shipment, We test every product and check defects. Any products with defects won’t be loaded.
More details, Please check with our sales team.

Q. What about your M.O.Q ?

A. Our minimum order value is USD500. For smaller order, please check particularly with our sales team.

Q. What is the lead time?

A. Within 40 days for 40ft container.  Within 30 days for 20ft container. 

Q. What about your payment terms?

A. We accept various terms, including T/T , L/C , Western Union, etc.

How to Calculate the Diameter of a Worm Gear

In this article, we will discuss the characteristics of the Duplex, Single-throated, and Undercut worm gears and the analysis of worm shaft deflection. Besides that, we will explore how the diameter of a worm gear is calculated. If you have any doubt about the function of a worm gear, you can refer to the table below. Also, keep in mind that a worm gear has several important parameters which determine its working.

Duplex worm gear

A duplex worm gear set is distinguished by its ability to maintain precise angles and high gear ratios. The backlash of the gearing can be readjusted several times. The axial position of the worm shaft can be determined by adjusting screws on the housing cover. This feature allows for low backlash engagement of the worm tooth pitch with the worm gear. This feature is especially beneficial when backlash is a critical factor when selecting gears.
The standard worm gear shaft requires less lubrication than its dual counterpart. Worm gears are difficult to lubricate because they are sliding rather than rotating. They also have fewer moving parts and fewer points of failure. The disadvantage of a worm gear is that you cannot reverse the direction of power due to friction between the worm and the wheel. Because of this, they are best used in machines that operate at low speeds.
Worm wheels have teeth that form a helix. This helix produces axial thrust forces, depending on the hand of the helix and the direction of rotation. To handle these forces, the worms should be mounted securely using dowel pins, step shafts, and dowel pins. To prevent the worm from shifting, the worm wheel axis must be aligned with the center of the worm wheel’s face width.
The backlash of the CZPT duplex worm gear is adjustable. By shifting the worm axially, the section of the worm with the desired tooth thickness is in contact with the wheel. As a result, the backlash is adjustable. Worm gears are an excellent choice for rotary tables, high-precision reversing applications, and ultra-low-backlash gearboxes. Axial shift backlash is a major advantage of duplex worm gears, and this feature translates into a simple and fast assembly process.
When choosing a gear set, the size and lubrication process will be crucial. If you’re not careful, you might end up with a damaged gear or 1 with improper backlash. Luckily, there are some simple ways to maintain the proper tooth contact and backlash of your worm gears, ensuring long-term reliability and performance. As with any gear set, proper lubrication will ensure your worm gears last for years to come.

Single-throated worm gear

Worm gears mesh by sliding and rolling motions, but sliding contact dominates at high reduction ratios. Worm gears’ efficiency is limited by the friction and heat generated during sliding, so lubrication is necessary to maintain optimal efficiency. The worm and gear are usually made of dissimilar metals, such as phosphor-bronze or hardened steel. MC nylon, a synthetic engineering plastic, is often used for the shaft.
Worm gears are highly efficient in transmission of power and are adaptable to various types of machinery and devices. Their low output speed and high torque make them a popular choice for power transmission. A single-throated worm gear is easy to assemble and lock. A double-throated worm gear requires 2 shafts, 1 for each worm gear. Both styles are efficient in high-torque applications.
Worm gears are widely used in power transmission applications because of their low speed and compact design. A numerical model was developed to calculate the quasi-static load sharing between gears and mating surfaces. The influence coefficient method allows fast computing of the deformation of the gear surface and local contact of the mating surfaces. The resultant analysis shows that a single-throated worm gear can reduce the amount of energy required to drive an electric motor.
In addition to the wear caused by friction, a worm wheel can experience additional wear. Because the worm wheel is softer than the worm, most of the wear occurs on the wheel. In fact, the number of teeth on a worm wheel should not match its thread count. A single-throated worm gear shaft can increase the efficiency of a machine by as much as 35%. In addition, it can lower the cost of running.
A worm gear is used when the diametrical pitch of the worm wheel and worm gear are the same. If the diametrical pitch of both gears is the same, the 2 worms will mesh properly. In addition, the worm wheel and worm will be attached to each other with a set screw. This screw is inserted into the hub and then secured with a locknut.

Undercut worm gear

Undercut worm gears have a cylindrical shaft, and their teeth are shaped in an evolution-like pattern. Worms are made of a hardened cemented metal, 16MnCr5. The number of gear teeth is determined by the pressure angle at the zero gearing correction. The teeth are convex in normal and centre-line sections. The diameter of the worm is determined by the worm’s tangential profile, d1. Undercut worm gears are used when the number of teeth in the cylinder is large, and when the shaft is rigid enough to resist excessive load.
The center-line distance of the worm gears is the distance from the worm centre to the outer diameter. This distance affects the worm’s deflection and its safety. Enter a specific value for the bearing distance. Then, the software proposes a range of suitable solutions based on the number of teeth and the module. The table of solutions contains various options, and the selected variant is transferred to the main calculation.
A pressure-angle-angle-compensated worm can be manufactured using single-pointed lathe tools or end mills. The worm’s diameter and depth are influenced by the cutter used. In addition, the diameter of the grinding wheel determines the profile of the worm. If the worm is cut too deep, it will result in undercutting. Despite the undercutting risk, the design of worm gearing is flexible and allows considerable freedom.
The reduction ratio of a worm gear is massive. With only a little effort, the worm gear can significantly reduce speed and torque. In contrast, conventional gear sets need to make multiple reductions to get the same reduction level. Worm gears also have several disadvantages. Worm gears can’t reverse the direction of power because the friction between the worm and the wheel makes this impossible. The worm gear can’t reverse the direction of power, but the worm moves from 1 direction to another.
The process of undercutting is closely related to the profile of the worm. The worm’s profile will vary depending on the worm diameter, lead angle, and grinding wheel diameter. The worm’s profile will change if the generating process has removed material from the tooth base. A small undercut reduces tooth strength and reduces contact. For smaller gears, a minimum of 14-1/2degPA gears should be used.

Analysis of worm shaft deflection

To analyze the worm shaft deflection, we first derived its maximum deflection value. The deflection is calculated using the Euler-Bernoulli method and Timoshenko shear deformation. Then, we calculated the moment of inertia and the area of the transverse section using CAD software. In our analysis, we used the results of the test to compare the resulting parameters with the theoretical ones.
We can use the resulting centre-line distance and worm gear tooth profiles to calculate the required worm deflection. Using these values, we can use the worm gear deflection analysis to ensure the correct bearing size and worm gear teeth. Once we have these values, we can transfer them to the main calculation. Then, we can calculate the worm deflection and its safety. Then, we enter the values into the appropriate tables, and the resulting solutions are automatically transferred into the main calculation. However, we have to keep in mind that the deflection value will not be considered safe if it is larger than the worm gear’s outer diameter.
We use a four-stage process for investigating worm shaft deflection. We first apply the finite element method to compute the deflection and compare the simulation results with the experimentally tested worm shafts. Finally, we perform parameter studies with 15 worm gear toothings without considering the shaft geometry. This step is the first of 4 stages of the investigation. Once we have calculated the deflection, we can use the simulation results to determine the parameters needed to optimize the design.
Using a calculation system to calculate worm shaft deflection, we can determine the efficiency of worm gears. There are several parameters to optimize gearing efficiency, including material and geometry, and lubricant. In addition, we can reduce the bearing losses, which are caused by bearing failures. We can also identify the supporting method for the worm shafts in the options menu. The theoretical section provides further information.