Solution Description
Product Description
Item Name: 
NIJ Amount III or IV Authorities Military Tender Navy Bullet Evidence Vest Bulletproof Ballistic Jacket Entire body Armor With Plates 
Ballistic Material: 
Aramid or PE 
Exterior Protect: 
Nylon or Polyester 
Protection Level: 
NIJ 571106 IIIA, III, IV 
Defense Area 
.28.32 m2, or customized manufactured 
Colour: 
Black, Tan, White, Camouflage and so forth. 
OEM: 
Acceptable 
Armor Variety 
Examination Bullet 
Bullet Mass 
Conditioned Armor Examination Velocity 
Distance 
Max BFS Depth 
Angle Test (°NATO) 
Shot for each panel 
IIA 
9mm FMJ RN

eight. g (124 gr) 
355m/s(1165 ft/s) 
5m 
44mm (1.73 in) 
0° 4X 30°& 45°2X 
six 
.40S&W FMJ RN 
eleven.7g (a hundred and eighty gr) 
325 m/s (1065 ft/s) 
5m 
44mm (1.73 in) 
0° 4X 30°& 45°2X 
6 

II 
9mm FMJ RN 
8. g (124 gr) 
379 m/s (1245 ft/s) 
5m 
44mm (1.seventy three in) 
0° 4X 30°& 45°2X 
six 
.357 Magnum JSP 
ten.2 g (158 gr) 
408 m/s (1340 ft/s) 
5m 
44mm (1.73 in) 
0° 4X 30°& 45°2X 
six 

IIIA 
.357 SIG FMJ FN 
8.1 g (124 gr) 
430 m/s (1410 ft/s) 
5m 
44mm (1.73 in) 
0° 4X 30°& 45°2X 
six 
.forty four Magnum SJHP 
15.6 g (240 gr) 
408 m/s (1340 ft/s) 
5m 
44mm (1.seventy three in) 
0° 4X 30°& 45°2X 
6 

III 
seven.62mm NATO FMJ 
9.6 g (147gr) 
847 m/s (2780 ft/s) 
15mm 
44mm (1.73 in) 
0°6X 
six 
IV 
.thirty Calier M2 AP 
ten.8 g (166 gr) 
878 m/s (2880 ft/s) 
15mm 
44mm (1.seventy three in) 
0°1 to 6X 
six 
Company Profile
Workshop
Check Data
Certifications
FAQ
Q: Are you buying and selling business or producer ?
A: We are an integrated set of industry and trade company for military&police supplies of anti riot equipment and bulletproof products.
Q: Exactly where is your manufacturing unit located?
A: Our factory is located in HangZhou which is near to ZheJiang .Welcome to visit our manufacturing unit!
Q: Can you customise the products(make merchandise with our brand name)?
A: Sure, we can customise the items according to your specifications,like,substance, colour, emblem design and style ,package ,etc. Actually,we are welcome to cooperate as OEM services.
Q: Who will buy the insurance policies for the merchandise?
A: It relies upon on what trade conditions you pick.
Q: What’s the supply time?
A: Typically,it takes 45 days by sea,15 days by air,7 days by convey.
Q: What is your payment time period?
A: Available for T/T, Sight L/C, Paypal, Western Union, Money gram, Alibaba Trade Assurance, etc.
Transport Package:  Carton 

Trademark:  Chengan 
Origin:  Jiangsu, China 
###
Samples: 
US$ 92/Piece
1 Piece(Min.Order) 

###
Customization: 
Available


###
Product Name:

NIJ Level III or IV Government Army Tender Military Bullet Proof Vest Bulletproof Ballistic Jacket Body Armor With Plates

Ballistic Material:

Aramid or PE

Exterior Cover:

Nylon or Polyester

Protection Level:

NIJ 010106 IIIA, III, IV

Protection Area

0.280.32 m2, or custom made

Color:

Black, Tan, White, Camouflage etc.

OEM:

Acceptable

###
Armor Type

Test Bullet

Bullet Mass

Conditioned Armor Test Velocity

Distance

Max
BFS
Depth

Angle
Test
(°NATO)

Shot per panel

IIA 
9mm
FMJ RN

8.0 g (124 gr)

355m/s(1165 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6

.40S&W
FMJ RN

11.7g
(180 gr)

325 m/s
(1065 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6


II

9mm
FMJ RN

8.0 g
(124 gr)

379 m/s
(1245 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6

.357 Magnum JSP

10.2 g
(158 gr)

408 m/s
(1340 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6


IIIA

.357 SIG
FMJ FN

8.1 g
(124 gr)

430 m/s
(1410 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6

.44 Magnum SJHP

15.6 g
(240 gr)

408 m/s
(1340 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6


III

7.62mm NATO FMJ

9.6 g
(147gr)

847 m/s
(2780 ft/s)

15mm

44mm (1.73 in)

0°6X

6

IV

.30 Calier
M2 AP

10.8 g
(166 gr)

878 m/s
(2880 ft/s)

15mm

44mm
(1.73 in)

0°1 to 6X

6

Transport Package:  Carton 

Trademark:  Chengan 
Origin:  Jiangsu, China 
###
Samples: 
US$ 92/Piece
1 Piece(Min.Order) 

###
Customization: 
Available


###
Product Name:

NIJ Level III or IV Government Army Tender Military Bullet Proof Vest Bulletproof Ballistic Jacket Body Armor With Plates

Ballistic Material:

Aramid or PE

Exterior Cover:

Nylon or Polyester

Protection Level:

NIJ 010106 IIIA, III, IV

Protection Area

0.280.32 m2, or custom made

Color:

Black, Tan, White, Camouflage etc.

OEM:

Acceptable

###
Armor Type

Test Bullet

Bullet Mass

Conditioned Armor Test Velocity

Distance

Max
BFS
Depth

Angle
Test
(°NATO)

Shot per panel

IIA 
9mm
FMJ RN

8.0 g (124 gr)

355m/s(1165 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6

.40S&W
FMJ RN

11.7g
(180 gr)

325 m/s
(1065 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6


II

9mm
FMJ RN

8.0 g
(124 gr)

379 m/s
(1245 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6

.357 Magnum JSP

10.2 g
(158 gr)

408 m/s
(1340 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6


IIIA

.357 SIG
FMJ FN

8.1 g
(124 gr)

430 m/s
(1410 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6

.44 Magnum SJHP

15.6 g
(240 gr)

408 m/s
(1340 ft/s)

5m

44mm
(1.73 in)

0° 4X
30°& 45°2X

6


III

7.62mm NATO FMJ

9.6 g
(147gr)

847 m/s
(2780 ft/s)

15mm

44mm (1.73 in)

0°6X

6

IV

.30 Calier
M2 AP

10.8 g
(166 gr)

878 m/s
(2880 ft/s)

15mm

44mm
(1.73 in)

0°1 to 6X

6

Types of Miter Gears
The different types of miter gears include Hypoid, Crown, and Spiral. To learn more, read on. In addition, you’ll learn about their differences and similarities. This article will provide an overview of the different types of miter gears. You can also choose the type that fits your needs by using the guide below. After you’ve read it, you’ll know how to use them in your project. You’ll also learn how to pair them up by hand, which is particularly useful if you’re working on a mechanical component.
Bevel gears
Bevel and miter gears are both used to connect two shafts that have different axes. In most cases, these gears are used at right angles. The pitch cone of a bevel gear has the same shape as that of a spur gear, except the tooth profile is slightly tapered and has variable depth. The pinions of a bevel gear are normally straight, but can be curved or skewshaped. They can also have an offset crown wheel with straight teeth relative to the axis.
In addition to their industrial applications, miter gears are found in agriculture, bottling, printing, and various industrial sectors. They are used in coal mining, oil exploration, and chemical processes. They are an important part of conveyors, elevators, kilns, and more. In fact, miter gears are often used in machine tools, like forklifts and jigsaws.
When considering which gear is right for a certain application, you’ll need to think about the application and the design goals. For example, you’ll want to know the maximum load that the gear can carry. You can use computer simulation programs to determine the exact torque required for a specific application. Miter gears are bevel gears that are geared on a single axis, not two.
To calculate the torque required for a particular application, you’ll need to know the MA of each bevel gear. Fortunately, you can now do so with CZPT. With the help of this software, you can generate 3D models of spiral bevel gears. Once you’ve created your model, you can then machine it. This can make your job much easier! And it’s fun!
In terms of manufacturing, straight bevel gears are the easiest to produce. The earliest method for this type of gear is a planer with an indexing head. Since the development of CNC machining, however, more effective manufacturing methods have been developed. These include CZPT, Revacycle, and Coniflex systems. The CZPT uses the Revacycle system. You can also use a CNC mill to manufacture spiral bevel gears.
Hypoid bevel gears
When it comes to designing hypoid bevel gears for miter and other kinds of gears, there are several important parameters to consider. In order to produce highquality gearings, the mounting distance between the gear teeth and the pinion must be within a predefined tolerance range. In other words, the mounting distance between the gear teeth and pinion must be 0.05 mm or less.
To make this possible, the hypoid bevel gearset mesh is designed to involve sliding action. The result is a quiet transmission. It also means that higher speeds are possible without increasing noise levels. In comparison, bevel gears tend to be noisy at high speeds. For these reasons, the hypoid gearset is the most efficient way to build miter gears. However, it’s important to keep in mind that hypoid gears are not for every application.
Hypoid bevel gears are analogous to spiral bevels, but they don’t have intersecting axes. Because of this, they can produce larger pinions with smooth engagement. Crown bevel gears, on the other hand, have a 90degree pitch and parallel teeth. Their geometry and pitch is unique, and they have particular geometrical properties. There are different ways to express pitch. The diametral pitch is the number of teeth, while circumferential measurement is called the circumference.
The facemilling method is another technique used for the manufacture of hypoid and spiral bevel gears. Facemilling allows gears to be ground for high accuracy and surface finish. It also allows for the elimination of heat treatment and facilitates the creation of predesigned easeoff topographies. Facemilling increases mechanical resistance by as much as 20%. It also reduces noise levels.
The ANSI/AGMA/ISO standards for geometric dimensioning differ from the best practices for manufacturing hypoid and bevel gears. The violation of common datum surfaces leads to a number of geometrical dimensioning issues. Moreover, hypoid gears need to be designed to incorporate the base pitches of the mating pinion and the hypoid bevel gear. This is not possible without knowing the base pitch of the gear and the mating pinion.
Crown bevel gears
When choosing crown bevels for a miter gear, you will need to consider a number of factors. Specifically, you will need to know the ratio of the tooth load to the bevel gear pitch radius. This will help you choose a bevel gear that possesses the right amount of excitation and load capacity. Crown bevels are also known as helical gears, which are a combination of two bevel gear types.
These bevel gears differ from spiral bevels because the bevels are not intersected. This gives you the flexibility of using a larger pinion and smoother engagement. Crown bevel gears are also named for their different tooth portions: the toe, or the part of the gear closest to the bore, and the heel, or the outermost diameter. The tooth height is smaller at the toe than it is at the heel, but the height of the gear is the same at both places.
Crown bevel gears are cylindrical, with teeth that are angled at an angle. They have a 1:1 gear ratio and are used for miter gears and spur gears. Crown bevel gears have a tooth profile that is the same as spur gears but is slightly narrower at the tip, giving them superior quietness. Crown bevel gears for miter gears can be made with an offset pinion.
There are many other options available when choosing a Crown bevel gear for miter gears. The material used for the gears can vary from plastics to prehardened alloys. If you are concerned with the material’s strength, you can choose a prehardened alloy with a 3235 Rc hardness. This alloy also has the advantage of being more durable than plastic. In addition to being stronger, crown bevel gears are also easier to lubricate.
Crown bevel gears for miter gears are similar to spiral bevels. However, they have a hyperbolic, not conical, pitch surface. The pinion is often offset above or below the center of the gear, which allows for a larger diameter. Crown bevel gears for miter gears are typically larger than hypoid gears. The hypoid gear is commonly used in automobile rear axles. They are useful when the angle of rotation is 90 degrees. And they can be used for 1:1 ratios.
Spiral miter gears
Spiral bevel gears are produced by machining the face surface of the teeth. The process follows the Hertz theory of elastic contact, where the dislocations are equivalent to small significant dimensions of the contact area and the relative radii of curvature. This method assumes that the surfaces are parallel and that the strains are small. Moreover, it can reduce noise. This makes spiral bevel gears an ideal choice for highspeed applications.
The precision machining of CZPT spiral miter gears reduces backlash. They feature adjustable locking nuts that can precisely adjust the spacing between the gear teeth. The result is reduced backlash and maximum drive life. In addition, these gears are flexible enough to accommodate design changes late in the production process, reducing risk for OEMs and increasing efficiency and productivity. The advantages of spiral miter gears are outlined below.
Spiral bevel gears also have many advantages. The most obvious of these advantages is that they have largediameter shafts. The larger shaft size allows for a larger diameter gear, but this means a larger gear housing. In turn, this reduces ground clearance, interior space, and weight. It also makes the drive axle gear larger, which reduces ground clearance and interior space. Spiral bevel gears are more efficient than spiral bevel gears, but it may be harder to find the right size for your application.
Another benefit of spiral miter gears is their small size. For the same amount of power, a spiral miter gear is smaller than a straight cut miter gear. Moreover, spiral bevel gears are less likely to bend or pit. They also have higher precision properties. They are suitable for secondary operations. Spiral miter gears are more durable than straight cut ones and can operate at higher speeds.
A key feature of spiral miter gears is their ability to resist wear and tear. Because they are constantly being deformed, they tend to crack in a way that increases their wear and tear. The result is a harder gear with a more contoured grain flow. But it is possible to restore the quality of your gear through proper maintenance. If you have a machine, it would be in your best interest to replace worn parts if they aren’t functioning as they should.
editor by czh 20230115