Product Description

B 3CX AND 4CX BACKHOE LOADER Spare Parts Universal Joint 914/85717

PART NUMBER FOR REFERENCE:
(914/60041) (914/44500)
(914/37400) (914/85717)
(914/35401) (914/10803)
(116/00525)

(907/52200) (907/55710)
(907/ 0571 0) (907/08400)
(907/ 0571 0) (907/57100)
(907/57100) (907/57100)
(907/57100) (907/57100)
(907/57100) (907/52800)
(907/5710) (907/5710)
(907/55710)
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, 
we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages 
before you pay the balance.

Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.

Q4. How about your delivery time?
1) 1-2 days if goods in stock.
2) 10-20 days if goods out of stock with molding.
3) 25-35 days if goods out of stock without molding.

Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and 
the courier cost.

Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, 
no matter where they come from.

02/257120	PISTON
02/257121	PISTON RING
02/257122	ROD
02/257135	SEAL
02/257162	HOUSING
02/257178	GASKET KITS
02/257180	Connector water inlet
02/257183	GASKET
02/257194	GASKET KITS
02/257199	GASKET KITS
02/203002	COOLER GASKET
02/2571	Elbow exhaust
02/203017	Gasket exhaust manifold
02/203056	CYLINDER KITS
02/25716	COOLER
02/25716	Top Gasket RG
02/2 0571 0	TURBO
02/2 0571 6	CYLINDER KITS
02/2 0571 4	Connector water outlet assembly vertical
02/2 0571 5	THERMO
02/2 0571 6	THERMOSTAT
02/203218	COOLER GASKET
02/203237	Cover Ciover timing
02/203246	TIMNING CASE
02/634780	LIFT PUMP
02/800571	filter
02/805712	BELT
02/857110	water pump
02/91 0571	filter
02/971635	filter
04/55710	TORQUE CONVERNT
04/55716	Friction
04/55717	Friction
04/505717	GEAR PUMP
04/505719	FRICTION
04/55711	Friction
04/55713	FRICTION
04/55715	FRICTION
04/500300	Friction
04/500800	TORQUE
04/501400	TORQUE
04/501700	Friction
04/501800	TORQUE CONVERNT
04/600650	TORQUE CONVERNT
04/600784	TORQUE
04/600786	TORQUE CONVERNT
04/6 4	DISC
05/206000	Bearing roller
05/206300	Shaft
05/900308	SEAL KITS
05/901926	Pad thrust
05/903801	JS220 GEAR
05/903804	Gear sun
05/903805	Gear reduction set 1st planet
05/903806	Gear reduction set 2nd planet
05/903808	Gear planet
05/903811	Seal assembly
05/903819	O Ring
05/903823	Gear sun
05/903825	Gear reduction set 1st planet
05/903854	Coupling
05/903860	Gear reduction assembly
05/903862	Ring Toothed
05/903865	Ring Toothed
05/903866	Gear Reduction Assembly

01/117901	BELT
01/124404	BELT
01/124405	BELT
01/130301	BELT
02/100073	Filter
02/100078	GEAR
02/100192	Thermostat
02/15714	Filter
02/101327	BELT
02/101435	seal
02/101436	SEAL
02/101440	ROD
02/101566	BELT
02/101906	BELT
02/157140	WATER PUMP
02/157161	WATER PUMP
02/192002	BEARING
02/192003	BEARING
02/192004	BEARING
02/192005	BEARING
02/200002	CYLINDER
02/20571	BEARING
02/200018	PULLEY
02/200113	Connector
02/200114	cooler
02/200120	Cooler oil
02/200173	SEAL KITS
02/200192	PISTON RING
02/20571	Hub Fan Drive
02/20571	Hub Fan Drive
02/200460	TURBO
02/200502	Elbow turbo exhaust
02/200503	BUSH
02/200521	BELT
02/2571	GASKET
02/20 0571	GASKET
02/20571	PULLEY
02/200904	PISTON
02/2571	CRANKSHAFT
02/257150	GEAR PUMP
02/201140	PISTON RING
02/201141	CYLINDER
02/201142	Liner slip-fit
02/201291	BELT
02/201318	Connector water outlet
02/201328	PULLEY
02/201343	CAP
02/201357	Hub Fan Drive
02/201406	Connector
02/201452	Valve oil relief
02/201457	WATER PUMP
02/201504	PISTON RING
02/201505	PISTON
02/201539	GASKET WATER PUMP
02/201729	GASKET
02/201804	PISTON RING
02/201805	PISTON
02/201823	TIMING CASE
02/201849	GASKET
02/201852	TIMING COVER
02/201858	Elbow turbo exhaust
02/257107	Thermostat
02/257117	Breather
02/257145	PISTON
02/257174	TIMING CASE
02/257170	SEAL
02/257100	TURBO
02/257111	Connector water outlet
02/257167	Connector water outlet
02/257180	WATER PUMP
02/257184	HOUSING
02/257185	GEAR PUMP
02/257110	WATER PUMP
02/257124	GASKET
02/257110	CRANKSHAFT
02/257115	BEARING
02/257116	BEARING
02/257117	BEARING
02/257118	BEARING

How to Select a Worm Shaft and Gear For Your Project

You will learn about axial pitch PX and tooth parameters for a Worm Shaft 20 and Gear 22. Detailed information on these 2 components will help you select a suitable Worm Shaft. Read on to learn more….and get your hands on the most advanced gearbox ever created! Here are some tips for selecting a Worm Shaft and Gear for your project!…and a few things to keep in mind.

Gear 22

The tooth profile of Gear 22 on Worm Shaft 20 differs from that of a conventional gear. This is because the teeth of Gear 22 are concave, allowing for better interaction with the threads of the worm shaft 20. The worm’s lead angle causes the worm to self-lock, preventing reverse motion. However, this self-locking mechanism is not entirely dependable. Worm gears are used in numerous industrial applications, from elevators to fishing reels and automotive power steering.
The new gear is installed on a shaft that is secured in an oil seal. To install a new gear, you first need to remove the old gear. Next, you need to unscrew the 2 bolts that hold the gear onto the shaft. Next, you should remove the bearing carrier from the output shaft. Once the worm gear is removed, you need to unscrew the retaining ring. After that, install the bearing cones and the shaft spacer. Make sure that the shaft is tightened properly, but do not over-tighten the plug.
To prevent premature failures, use the right lubricant for the type of worm gear. A high viscosity oil is required for the sliding action of worm gears. In two-thirds of applications, lubricants were insufficient. If the worm is lightly loaded, a low-viscosity oil may be sufficient. Otherwise, a high-viscosity oil is necessary to keep the worm gears in good condition.
Another option is to vary the number of teeth around the gear 22 to reduce the output shaft’s speed. This can be done by setting a specific ratio (for example, 5 or 10 times the motor’s speed) and modifying the worm’s dedendum accordingly. This process will reduce the output shaft’s speed to the desired level. The worm’s dedendum should be adapted to the desired axial pitch.

Worm Shaft 20

When selecting a worm gear, consider the following things to consider. These are high-performance, low-noise gears. They are durable, low-temperature, and long-lasting. Worm gears are widely used in numerous industries and have numerous benefits. Listed below are just some of their benefits. Read on for more information. Worm gears can be difficult to maintain, but with proper maintenance, they can be very reliable.
The worm shaft is configured to be supported in a frame 24. The size of the frame 24 is determined by the center distance between the worm shaft 20 and the output shaft 16. The worm shaft and gear 22 may not come in contact or interfere with 1 another if they are not configured properly. For these reasons, proper assembly is essential. However, if the worm shaft 20 is not properly installed, the assembly will not function.
Another important consideration is the worm material. Some worm gears have brass wheels, which may cause corrosion in the worm. In addition, sulfur-phosphorous EP gear oil activates on the brass wheel. These materials can cause significant loss of load surface. Worm gears should be installed with high-quality lubricant to prevent these problems. There is also a need to choose a material that is high-viscosity and has low friction.
Speed reducers can include many different worm shafts, and each speed reducer will require different ratios. In this case, the speed reducer manufacturer can provide different worm shafts with different thread patterns. The different thread patterns will correspond to different gear ratios. Regardless of the gear ratio, each worm shaft is manufactured from a blank with the desired thread. It will not be difficult to find 1 that fits your needs.

Gear 22’s axial pitch PX

The axial pitch of a worm gear is calculated by using the nominal center distance and the Addendum Factor, a constant. The Center Distance is the distance from the center of the gear to the worm wheel. The worm wheel pitch is also called the worm pitch. Both the dimension and the pitch diameter are taken into consideration when calculating the axial pitch PX for a Gear 22.
The axial pitch, or lead angle, of a worm gear determines how effective it is. The higher the lead angle, the less efficient the gear. Lead angles are directly related to the worm gear’s load capacity. In particular, the angle of the lead is proportional to the length of the stress area on the worm wheel teeth. A worm gear’s load capacity is directly proportional to the amount of root bending stress introduced by cantilever action. A worm with a lead angle of g is almost identical to a helical gear with a helix angle of 90 deg.
In the present invention, an improved method of manufacturing worm shafts is described. The method entails determining the desired axial pitch PX for each reduction ratio and frame size. The axial pitch is established by a method of manufacturing a worm shaft that has a thread that corresponds to the desired gear ratio. A gear is a rotating assembly of parts that are made up of teeth and a worm.
In addition to the axial pitch, a worm gear’s shaft can also be made from different materials. The material used for the gear’s worms is an important consideration in its selection. Worm gears are usually made of steel, which is stronger and corrosion-resistant than other materials. They also require lubrication and may have ground teeth to reduce friction. In addition, worm gears are often quieter than other gears.

Gear 22’s tooth parameters

A study of Gear 22’s tooth parameters revealed that the worm shaft’s deflection depends on various factors. The parameters of the worm gear were varied to account for the worm gear size, pressure angle, and size factor. In addition, the number of worm threads was changed. These parameters are varied based on the ISO/TS 14521 reference gear. This study validates the developed numerical calculation model using experimental results from Lutz and FEM calculations of worm gear shafts.
Using the results from the Lutz test, we can obtain the deflection of the worm shaft using the calculation method of ISO/TS 14521 and DIN 3996. The calculation of the bending diameter of a worm shaft according to the formulas given in AGMA 6022 and DIN 3996 show a good correlation with test results. However, the calculation of the worm shaft using the root diameter of the worm uses a different parameter to calculate the equivalent bending diameter.
The bending stiffness of a worm shaft is calculated through a finite element model (FEM). Using a FEM simulation, the deflection of a worm shaft can be calculated from its toothing parameters. The deflection can be considered for a complete gearbox system as stiffness of the worm toothing is considered. And finally, based on this study, a correction factor is developed.
For an ideal worm gear, the number of thread starts is proportional to the size of the worm. The worm’s diameter and toothing factor are calculated from Equation 9, which is a formula for the worm gear’s root inertia. The distance between the main axes and the worm shaft is determined by Equation 14.

Gear 22’s deflection

To study the effect of toothing parameters on the deflection of a worm shaft, we used a finite element method. The parameters considered are tooth height, pressure angle, size factor, and number of worm threads. Each of these parameters has a different influence on worm shaft bending. Table 1 shows the parameter variations for a reference gear (Gear 22) and a different toothing model. The worm gear size and number of threads determine the deflection of the worm shaft.
The calculation method of ISO/TS 14521 is based on the boundary conditions of the Lutz test setup. This method calculates the deflection of the worm shaft using the finite element method. The experimentally measured shafts were compared to the simulation results. The test results and the correction factor were compared to verify that the calculated deflection is comparable to the measured deflection.
The FEM analysis indicates the effect of tooth parameters on worm shaft bending. Gear 22’s deflection on Worm Shaft can be explained by the ratio of tooth force to mass. The ratio of worm tooth force to mass determines the torque. The ratio between the 2 parameters is the rotational speed. The ratio of worm gear tooth forces to worm shaft mass determines the deflection of worm gears. The deflection of a worm gear has an impact on worm shaft bending capacity, efficiency, and NVH. The continuous development of power density has been achieved through advancements in bronze materials, lubricants, and manufacturing quality.
The main axes of moment of inertia are indicated with the letters A-N. The three-dimensional graphs are identical for the seven-threaded and one-threaded worms. The diagrams also show the axial profiles of each gear. In addition, the main axes of moment of inertia are indicated by a white cross.