Product Description

  Radial Needle Roller and Cage Assemblies

As for Model K, K D radial needle and retainer assembly, this kind of bearing only has a group of radial needle and retainer assembly. With small outside diameter size, it is suitable for the parts, where the radial sizes are specially limited, used for bearing the radial load. Model K—ZW, K—ZWD radial needle and retainer assembly is the double row radial needle and retainer assembly.
As for this kind of bearing, since it has not collar, the surface of journal and the surface of hole at the housing are directly acted as rolling surface with surface hardness HRC 60 and surface roughness Ra no more than 0.63 P m.
In order to satisfy the requirement of main machine, this kind of bearing can be made in split bearing, convenient for mounting. Model K…D represents as the single row split bearing and Model K–ZWD represents as double row split bearing.
(1-1) K single-row radial needle roller and cage assembly
(1-2) K…ZW double-row radial needle roller and cage assembly
(1-3) K… D partial single-row radial needle roller and cage assembly
(1-4) K…ZWD double-row radial needle roller and cage assembly
 

Shaft Diameter Bearing Designation Mass Approx Boundary Dimensions Basic Load Rating Limiting Speed
Current Code Original Code Fw Ew Be Dynamic Static Oil
mm g mm N rpm
3 K3 x 5 x 7TN   0.3 3 5 7 1.54 1.29 50000
K3 x 5 x 9TN   0.4 3 5 9 1.71 1.48  
K3 x 6 x 7TN   0.4 3 6 7 1.43 0.97 47000
4 K4 x 7 x 7TN   0.5 4 7 7 2.33 1.84 43000
K4 x 7 x 10TN   0.7 4 7 10 2.35 1.92 39000
5 K5 x 8 x 8TN 29241/5 0.7 5 8 8 2300 1880 37000
K5 x 8 x 10TN 39241/5 0.9 5 8 10 2800 2450 37000
6 K6 x 9 x 8TN 29241/6 0.8 6 9 8 25600 2240 35000
K6 x 9 x 10TN 39241/6 1 6 9 10 3300 3100 35000
K6 x 10 * 13TN 19241/6 1.3 6 10 13 3500 2800 33000
7 K7 x 10 x 8TN 29241/7 0.9 7 10 8 2750 2550 32000
K7 x 10 x 10TN 39241/7 1.1 7 10 10 3350 3400 32000
8 K8 x 11 x 8TN 29241/8 1.1 8 11 8 3000 2900 30000
K8 x 11 x 10TN 39241/8 1.7 8 11 10 3830 3950 30000
K8 x 11 x 13TN 49241/8 1.8 8 11 13 5000 5700 30000
K8 x 12 x 10TN 29242/8 1.3 8 12 10 4900 4600 30000
9 K9 x 12 x 10TN 39241/9 1.5 9 12 10 4200 4700 30000
K9 x 12 x 13TN 19241/9 1.9 9 12 13 5500 6700 30000
10 K10 * 13 x 10TN 39241/10 1.6 10 13 10 4500 5250 27000
K10 x 13 x 13TN 39241/10 2.1 10 13 13 6000 7600 27000
K10 x 13 x 16TN   2.2 10 13 16 6300 7800 27000
K10 x 14 x 10TN 29242/10 2.9 10 14 10 7000 7900 27000
K10 x 14 x 13TN 3922/10 4.3 10 14 13 8000 9100 26000
K10 x 16 x 12TN 19244/10 3.7 10 16 12 7000 9300 27000
12 K12 x 15 x 9TN   2.7 12 15 9 4120 5210 25000
K12 x 15 x 10TN 39241/12 1.9 12 15 10 4320 5730 25000
K12 x 15 x 13TN 49241/12 2.4 12 15 13 6000 8100 25000
K12 x 16 x 8TN 19242/12 2.9 12 16 8 1200 4700 25000
K12 x 16 x 10TN 29242/12 3.4 12 16 10 6000 6900 25000
K12 x 16 x 13TN 39242/12 3.8 12 16 13 7900 9200 25000
K12 x 17 x 13TN 59242/12 4.4 12 17 13 9300 10000 24000
K12 x N8 x 12TN 19244/12 5 12 18 12 9800 8000 24000
K12 x 15 x 20TN K12 x 15 x 20TN 3.8 12 15 20 8200 12000 25000
14 K14 x N7 x 10   4 14 17 10 5100 6800 23000
K14 x 17 x 17   6.8 14 17 17 9300 14000 23000
K14 x N8 x 10 29242/14 4.8 14 18 10 6800 8300 23000
K14 x N8 * 13 39242/14 6.3 14 18 13 8100 9800 23000
K14 * 18 x 14   6.8 14 18 14 9200 12000 23000
K14 x N8 * 15 49242/14 7.3 14 18 15 10000 13000 23000

 

Shaft
Diameter
Bearing Designation Mass Approx Boundary Dimensions Basic Load Rating Limiting Speed
Current Code Original Code Fw Ew Be Dynamic Static Oil
mm g mm N rpm
25 K25 x 32 x 16 19244/25 24.5 25 32 16 20500 27500 15000
K25 x 33 x 20 19245/25 32 25 33 20 28000 37500 15000
K25 x 33 x 24 29245/25 38.7 25 33 24 33900 46500 15000
K25 x 34 x 18   32 25 34 18 48000 67000 15000
K25 x 35 x 30 39245/25 65.5 25 35 30 46500 61500 14000
K25 x 30 x 26 ZW   27 25 30 26 21000 35000 14000
26 K26 x 30 x 10   9 26 30 10 9500 15500 16000
K26 x 30 x 13   11.4 26 30 13 11100 18700 16000
K26 x 30 x 17   15 26 30 17 14700 27000 16000
K26 x 31 x 13   9.9 26 31 13 12400 18400 15000
K26 x 30 x 22   12.3 26 30 22 15200 28000 16000
27 K27 x 32 x 17   29 27 32 27 16000 34000 17000
28 K28 x 32 x 16.5   16 28 32 16.5 15000 32400 14000
K28 x 32 x 17 9242/28 18.2 28 32 17 15000 32400 14000
K28 x 33 x 13 29241/25 15.2 28 33 13 14800 23600 14000
K28 x 33 x 17 49241/28 19.5 28 33 17 19100 33000 14000
K28 x 33 x 27 TN 79241/28 19 28 33 27 22800 40500 14000
K28 x 34 x 17 39242/28 24.2 28 34 17 21300 35000 14000
K28 x 35 x 16 19243/28 26 28 35 16 21000 29000 14000
K28 x 35 x 18   31 28 35 18 23500 33500 14000
K28 x 35 x 20 29243/28 35 28 35 20 24000 34000 14000
K28 x 35 x 27   47 28 35 27 34500 54500 14000
K28 x 36 x 16   40 28 36 16 34000 47000 11000
K28 x 40 x 18   50 28 40 18 33000 36500 12000
K28 x 40 x 25   71 28 40 25 45000 54500 12000
30 K30 x 33 x 10     30 33 10      
K30 x 34 x 13   14.6 30 34 13 11800 21200 13000
K30 x 35 x 13 29241/30 16.3 30 35 13 15100 25000 13000
K30 x 35 x 17 49241/30 21.3 30 35 17 19100 33500 13000
K30 x 35 x 26     30 35 26      
K30 x 35 x 27 19241/30 33.3 30 35 27 30000 58500 13000
K30 x 37 x 16 19243/30 26.4 30 37 16 22500 33000 13000
K30 x 38 x 25 29244/30 43 30 38 25 16000 390000 13000
K30 x 39 x 21     30 39 21      
K30 x 40 x 18   44 30 40 18 31500 39500 12000
K30 x 40 x 27 92401/30T 60 30 40 27      
K30 x 40 x 30 49243/30 78 30 40 30 48500 68500 13000
K30 x 35 x 26   32 30 35 26 23500 43500 12000
K30 x 42 x 44.1     30 42 44.1      

Shaft
Diameter
Bearing Designation Mass Approx Boundary Dimensions Basic Load Rating Limiting Speed
Current Code Original Code Fw Ew Be Dynamic Static Oil
mm g mm N rpm
32 K32 x 37 x 13 29241/32 18.3 32 37 13 15000 25000 12000
K32 x 37 x 17 49241/32 22.4 32 37 17 19400 35000 12000
K32 x 37 x 27 19241/32 36.7 32 37 27 29500 59500 12000
K32 x 37 x 28 TN   22.3 32 37 28 23100 43000 12000
K32 x 38 x 16   25 32 38 16 21000 34000 12000
K32 x 38 x 20 49242/32 31 32 38 20 26000 44500 12000
K32 x 38 x 26 TN   25.2 32 38 26 27000 46500 12000
K32 x 39 x 16 19243/32 36.7 32 39 16 23500 35000 12000
K32 x 39 x 18   37.2 32 39 18 26000 40500 12000
K32 x 40 x 20 19244/32 48 32 40 20 37000 40500 12000
K32 x 40 x 36   73 32 40 36 53500 91500 12000
K32 x 46 x 32   119 32 46 32 65500 82500 11000
K32 x 40 x 42 TN   771 32 40 42 49500 83500 12000
35 K35 x 40 x 13 29241/35 188 35 40 13 15800 27500 11000
K35 x 40 x 17 49241/35 25.3 35 40 17 20300 38000 11000
K35 x 40 x 25 29244/35 31 35 40 25 29000 59500 11000
K35 x 40 x 27 TN 19241/35 23.4 35 40 27 24500 48000 11000
K35 x 40 x 27 79241/35 28 35 40 27 27800 62100 11000
K35 x 40 x 30 39244/35 43 35 40 30 25000 49500 11000
K35 x 42 x 16 19243/35 34 35 42 16 23900 37000 11000
K35 x 42 x 18   39.2 35 42 18 27000 42500 11000
K35 x 42 x 30 49243/35 62.4 35 42 30 38500 67500 11000
K35 x 43 x 18   38 35 43 18 28000 41500 11000
K35 x 45 x 20   55.5 35 45 20 36500 49500 10000
K35 x 45 x 30 29245/35 80 35 45 30 52500 78500 10000
K35 x 45 x 49   120 35 45 49 81500 13400 10000
K35 x 40 x 30 ZW   48 35 40 30 31500 65500 11000
K35 x 42 x 20 ZW 29243/35 41 35 42 20 29500 48500 11000
36 K36 x 41 x 30   52 36 41 30 23000 43000 11000
K36 x 42 x 16   50 36 42 16 24000 42000 11000
37 K37 x 42 x 17   25.8 37 42 17 21900 42500 10000
K37 x 42 x 27   40.7 37 42 27 31500 67500 10000
K37 x 45 x 26   60.5 37 45 26 43500 73500 10000
38 K38 x 43 x 17 49241/38 26.9 38 43 17 20000 38000 10000
K38 x 43 x 27 49241/38 43.2 38 43 27 31000 67500 10000
K38 x 46 x 20 19244/38 46 38 46 20 35000 56500 10000
K38 x 46 x 32   72.7 38 46 32 54500 98500 10000
39 K39 x 44 x 24   38 39 44 24 28000 58500 10000
K39 x 44 x 26 ZW   29.5 39 44 26 27000 55500 10000

Q1: Can I get a free sample?
A1: We provide samples free in freight collected. For special samples requirement, please contact us for more details. 
Q2: How could I pay?
A2: We prefer T/T or L/C at sight. If you prefer other payment terms, please contact us freely.
Q3: What is your brand and packing way? Can you produce my brand and packing?
A3: Our brand is CZPT and our own packing materials. We can make your brand. For more details, please contact us.
Q4: What is the delivery lead time?
A4: It depends on the order quantities. The mass production lead time is about 45-60 days after receipt of the deposit. 
Q5: Are you manufacturer or  trading company?
A5: We are manufacturer and exporter. We provide all kinds of OEM services for clients around the world.
Q6: Where is your main market?
A6: We export to the North America, Mexico, Australia, South-east Asia, Europe, U.A.E., Turkey, and other countries.

Our Services
1. Professional QC and QA team to make sure all products qualified before shipping.
2. Competitive price.
3 .Standard package to ensure the safe transportation.
4. Professional service.

Why choose us?
1. Production
    Qualified production, competitive price, professional service. 
2. Quality
    All products are inspected 100% before shipment by relative testing equipments.

Cage: With Cage
Rows Number: Multiple
Load Direction: Radial Bearing
Style: Without Outer Ring, Without Inner Ring
Material: Stainless Steel
Type: Open
Samples:
US$ 2/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

Shaft Collar

Types of Shaft Collars

Clamp style shaft collars

A variety of styles of shaft collars are available for your machining needs. Clamp style shaft collars offer better flexibility and hold better than set screw collars. They are best for shaft materials that are softer than a setscrew. Clamp style collars are generally easier to maneuver, as they are two-piece and are hinged along the shaft.
Clamp style shaft collars come in two-piece and one-piece designs. One-piece clamp collars are typically used for a single-piece shaft, while two-piece clamp collars are used for multiple shafts. The one-piece clamp collar provides a more uniform holding force, while two-piece clamp collars provide more clamping force and can be installed anywhere on the shaft. Both styles are available in English and metric measurements.
The holding power of Clamp style shaft collars depends on their bore size and concentricity. The fastening hardware also affects torque transmission. Forged screws are generally stronger than broached screws, and are less likely to ream out. However, you still need to make sure that the material of the collar is strong enough to withstand the recommended screw torque.
Clamp style shaft collars are available in 1215 lead-free steel with a black oxide finish and zinc plating, as well as 303 and 316 stainless steel. They are also available in 2024 aluminum with an anodized finish. They are available in a range of sizes from 1/8” to six inches and 3mm to 150mm.
One of the main benefits of Clamp style shaft collars is their versatility. The collars can be used as guides, spacers, or stops on a variety of medical equipment. They are designed to distribute compression forces around a shaft, and they can be added at any stage in the manufacturing process.

Set screw shaft collars

Set screw shaft collars are used to secure screws to shafts. They can be purchased in a variety of sizes. The external diameter, internal diameter, and width of the collar will determine the proper collar size. Some companies also offer custom and adjustable-width collars. Clamp-style shaft collars are easier to maintain, and distribute torque evenly across the shaft. They also offer twice the holding power of set screw collars.
Collars are available in metric and inch sizes. They are also available in zinc plated and black-oxide steel. In addition, they come in a variety of styles. Whether you’re looking for a custom collar, or something a little more conventional, you can find it with the help of an ISO-certified supplier.
Set screw shaft collars come in different sizes and materials. Socket collars, for example, are made of steel and have an inside diameter of 5/64″ to 1-1/8″. In addition, forged socket set screw shaft collars come in 3/16 to 4 in. They are also available with special hardware for connection to shafts.
Set screw shaft collars are commonly used on transmission and machinery. A set screw allows you to secure the collar in position by setting it into the correct position with a grub screw or a set screw. The set screw can then be adjusted with a screw driver and is a quick and easy solution for keeping a shaft in place.
Shaft Collar

Aluminum shaft collars

Aluminum shaft collars offer a number of advantages, ranging from their light weight to their corrosion resistance. Aluminum shaft collars are available in various styles and sizes, and can be plated with a variety of finishes. They are also available in lightweight styles for applications with tight space constraints. The most important factor when selecting a shaft collar is the material used to make it. Aluminum is lighter than steel and has a high strength to weight ratio. The choice of material should also depend on how much corrosion resistance is required. For example, if the shaft will be exposed to extreme environments, it is a better choice to use treated steel.
Another benefit to aluminum shaft collars is their ability to be custom-matched to the shaft. This feature helps to increase their aesthetics and branding potential. In addition, the ability to color-code components and switches can improve safety. This is especially useful in fail-safe applications. By incorporating color-coded collars, manufacturers can increase the safety of their products.
Another advantage of aluminum shaft collars is their strength. For instance, they can withstand higher torque levels than other types of shaft collars. They can be easily adjusted, and their two-piece design makes them easy to replace. Moreover, CZPT keeps the two-piece collars together during manufacturing, ensuring a perfect fit for the shaft. These collars also feature forged steel socket screws for enhanced holding power and torque capacity.
Single-piece shaft collars are also available in various styles. The set screw type has a perpendicular outer face. The set screw in these collars is used to engage the mating shaft. This type of shaft collar is a good choice for rotating assemblies.
Shaft Collar

Stainless steel shaft collars

The main function of a stainless steel shaft collar is to provide clamping force to a rotating shaft. This is achieved by a variety of methods. One of these is by bending or hammering. A shaft collar can also be made of aluminum or a combination of both. These options provide different advantages, which are described in this article.
Stainless steel shaft collars are available in different sizes, shapes, and materials. The diameter of the shaft collar may range from five-sixteenths to two-and-a-half inches. Some manufacturers produce the collars in different materials, including T304, T316, 416, and 17-4PH. Their products may also come in various shapes, such as angles, flats, structural shapes, and threaded rods.
One of the most important advantages of a stainless steel shaft collar is its strength and durability. A well-made collar can prevent wear and tear and provide excellent holding power. It also has many applications and is useful in many industries. Its application ranges from vertical conveyors to horizontal athletic equipment machinery, from agriculture to retail.
While there are numerous types of shaft collars, all three types have some common characteristics. Typically, steel shaft collars have high holding power and slim to average profiles. Heavy-duty collars have twice the holding power of low-profile collars and are used in heavy-duty construction and mining. Ultra Heavy-Duty shaft collars have the highest axial holding power and are made of steel. Shaft collars may be treated with zinc for corrosion resistance.
One manufacturer offers stainless steel shaft collars made of 303 stainless steel and other materials. It offers collars of various diameters from three-eighth to one-eighth inch. They are available in threaded, mounting, and heavy-duty styles, and are suitable for a wide range of applications, including the aerospace, energy, and medical industries.
China manufacturer Needle Bearing for RV Speed Reducer/Industrial Robot   with Best Sales China manufacturer Needle Bearing for RV Speed Reducer/Industrial Robot   with Best Sales
editor by CX 2023-11-10