Tag Archives: speed reducer

China manufacturer Needle Bearing Bolt Bearing for RV Speed Reducer supplier

Product Description

HangZhou Nanter Bearing Co., Ltd. specializes in the production and sales of needle roller bearings. There are 5,000 specifications and varieties of needle roller bearings ranging from inner diameter 3mm to outer diameter 350mm, including drawn cup needle roller bearings: HK, BK, SCE, SCH, B, BH, BHM, F, FY and other series, cage bearings: K, KZK and other series, one-way clutch needle roller bearings: HF, HFL, RC, RCB and other series, thrust needle roller bearings: NTA, TRA, TRB, TRC ,TRD, AXK, AS and other series, solid ring needle roller bearings: NA, RNA, NK, NKI, MR, Ml, NKS, NKIS and other series, inner and outer rings: IR, LR, Ml and other series , cylindrical roller bearings: N, NF, NU, NUP, NUPK, SL01, SL02, SL18, SL19, SL04 and other series, support rollers, bolt rollers: KR, STO, NUTR, NATR, NUKR, CF, CFH, CYR, etc. series, solid ring needle roller bearings: NK, NKI, RNA, NA, NKS, NKIS, MR, Ml metric and imperial series, combined radial-thrust bearings: NKIA, NKIB, NX, NKZ, NKXR series, water pump shaft Connected bearings: WR, WB series, and can design and develop various types of bearings suitable for users’ specific requirements according to users’ requirements.
Bearing products are widely used in automobiles, motorcycles, electric/pneumatic tools, light industrial machinery, engineering machinery, printing machinery, machine tool industry, packaging machinery and other fields.
The company always regards customer satisfaction as the driving force and unremitting pursuit, and all employees continue to fulfill their commitments to customers.
For more products and information, please visit the official website  

Supporting Roller Bearing

Model NATR, NATR—PP Supporting Roller Bering
Model NATV, NATV–PP Supporting Roller Bering
Model NATR supporting roller bearing includes outer ring, inner ring, needle cage assembly and baffle ring pressed and fixed in both sides of inner ring. Model NATR—PP support roller bearing has the seal ring. It has a large grease-storage space and can be used for a long time without adding lubricating grease.
The structure of Model NATV supporting roller bearing is same as that of Model NATR. Model NATV is the bearing with full of needles. It can withstand heavy load under the low speed. However it is necessary to add the lubricating grease at regular intervals. Model NATV—PP supporting roller needle bearing has the seal ring structure.
If the surface of outer ring is cylinder face, the letter X shall be added after designation of bearing.


Shaft Diameter Bearing Designation Boundary Dimensions Basic Load Rating Limiting Speed
without inner ring with inner ring d D B C d1 rs Dynamic Static As yoke type track rollers
Cw Cow
mm Without inner ring With inner ring mm min N rpm
16 NATR5 NATR 5 PP 5 16 12 11 12 0.15 3800 3750 3150 3300 •22000
NATV5 NATV 5 PP 5 16 12 11 12 0.15 6400 8500 4850 6500 8500
19 NATR6 NATR 6 PP 6 19 12 11 14 0.15 4250 4600 3500 3900 ,20000
NATV6 NATV6PP 6 19 12 11 14 0.15 7300 10800 5500 7900 7000
  NATR8 NATR 8 PP 8 24 15 14 19 0.3 6800 7700 5500 6400 •15000
  NATV8 NATV 8 PP 8 24 15 14 19 0.3 10400 15600 7800 11400 5500
30 NATR10 NATR 10 PP 10 30 15 14 23 0.6 8100 9700 6800 8400 11000
NATV10 NATV 10 PP 10 30 15 14 23 0.6 12200 19000 9500 14600 4500
32 NATR 12 NATR 12 PP 12 32 15 14 25 0.6 8700 11000 6900 8800 9000
NATV12 NATV 12 PP 12 32 15 14 25 0.6 13200 21700 9700 15400 3900
35 NATR 15 NATR 15 PP 15 35 19 18 27 0.6 12900 19000 9700 14100 7000
NATV15 NATV 15 PP 15 35 19 18 27 0.6 18300 35000 12800 23000 3400
  NATR 17 NATR 17 PP 17 40 21 20 32 1 14200 20400 10900 15500 6000
40 NATV17 NATV 17 PP 17 40 21 20 32 1 21000 39500 14800 26500 2900
  NATR 20 NATR 20 PP 20 47 25 24 37 1 19500 32000 15500 25500 4900
47 NATV20 NATV 20 PP 20 47 25 24 37 1 28000 59000 20600 42000 2600
52 NATR 25 NATR 25 PP 25 52 25 24 42 1 21200 38000 15400 26500 3600
NATV25 NATV 25 PP 25 52 25 24 42 1 31000 72000 20500 44000 2100
62 NATR 30 NATR 30 PP 30 62 29 28 51 1 34000 59000 23600 38500 2600
NATV30 NATV 30 PP 30 62 29 28 51 1 48500 108000 30500 63000 1700
  NATR 35 NATR 35 PP 35 72 29 28 58 1.1 37000 69000 25500 44500 2000
72 NATV35 NATV 35 PP 35 72 29 28 58 1.1 53000 127000 33000 73000 1400
  NATR 40 NATR 40 PP 40 80 32 30 66 1.1 49000 94000 33000 59000 1700
80 NATV40 NATV 40 PP 40 80 32 30 66 1.1 66000 159000 41000 90000 1300
85 NATR 45 NATR 45 PP 45 85 32 30 72 1.1 51000 157100 32500 59000 1500
90 NATR 50 NATR 50 PP 50 90 32 30 76 1.1 52000 108000 32000 59000 1300
NATV50 NATV 50 PP 50 90 32 30 76 1.1 72000 191000 40500 93000 1000

   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 SGC 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.
3.The 24/7 service allows you to obtain the best solution in the shortest possible time for the problems you encounter in the field of industry and bearings.
4.For the needs of the industrial field and bearing products, we have made a series of solutions, from product selection to correct installation after ordering, we will give you the most timely answers and solutions for every problem you encounter.


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

Request Sample



Customized Request


The benefits of rubber bushings and how they work

If you have experienced increased vibration while driving, you know the importance of replacing the control arm bushings. The resulting metal-to-metal contact can cause annoying driving problems and be a threat to your safety. Over time, the control arm bushings begin to wear out, a process that can be exacerbated by harsh driving conditions and environmental factors. Additionally, larger tires that are more susceptible to bushing wear are also prone to increased vibration transfer, especially for vehicles with shorter sidewalls. Additionally, these plus-sized tires, which are designed to fit on larger rims, have a higher risk of transmitting vibrations through the bushings.


Rubber bushings are rubber tubes that are glued into the inner or outer curve of a cylindrical metal part. The rubber is made of polyurethane and is usually prestressed to avoid breaking during installation. In some cases, the material is also elastic, so it can slide. These properties make rubber bushings an integral part of a vehicle’s suspension system. Here are some benefits of rubber bushings and how they work.
Rubber bushings are used to isolate and reduce vibration caused by the movement of the two pieces of equipment. They are usually placed between two pieces of machinery, such as gears or balls. By preventing vibrations, rubber bushings improve machine function and service life. In addition to improving the overall performance of the machine, the rubber bushing reduces noise and protects the operator from injury. The rubber on the shock absorber also acts as a vibration isolator. It suppresses the energy produced when the two parts of the machine interact. They allow a small amount of movement but minimize vibration.
Both rubber and polyurethane bushings have their advantages and disadvantages. The former is the cheapest, but not as durable as polyurethane. Compared to polyurethane, rubber bushings are a better choice for daily commutes, especially long commutes. Polyurethane bushings provide better steering control and road feel than rubber, but can be more expensive than the former. So how do you choose between polyurethane and rubber bushings?


Unlike rubber, polyurethane bushings resist high stress environments and normal cycling. This makes them an excellent choice for performance builds. However, there are some disadvantages to using polyurethane bushings. Read on to learn about the advantages and disadvantages of polyurethane bushings in suspension applications. Also, see if a polyurethane bushing is suitable for your vehicle.
Choosing the right bushing for your needs depends entirely on your budget and application. Softer bushings have the lowest performance but may have the lowest NVH. Polyurethane bushings, on the other hand, may be more articulated, but less articulated. Depending on your needs, you can choose a combination of features and tradeoffs. While these are good options for everyday use, for racing and hardcore handling applications, a softer option may be a better choice.
The initial hardness of the polyurethane bushing is higher than that of the rubber bushing. The difference between the two materials is determined by durometer testing. Polyurethane has a higher hardness than rubber because it does not react to load in the same way. The harder the rubber, the less elastic, and the higher the tear. This makes it an excellent choice for bushings in a variety of applications.


Solid bushings replace the standard bushings on the subframe, eliminating axle clutter. New bushings raise the subframe by 0.59″ (15mm), correcting the roll center. Plus, they don’t create cabin noise. So you can install these bushings even when your vehicle is lowered. But you should consider some facts when installing solid casing. Read on to learn more about these casings.
The stiffest bushing material currently available is solid aluminum. This material hardly absorbs vibrations, but it is not recommended for everyday use. Its stiffness makes it ideal for rail vehicles. The aluminum housing is prone to wear and tear and may not be suitable for street use. However, the solid aluminum bushings provide the stiffest feel and chassis feedback. However, if you want the best performance in everyday driving, you should choose a polyurethane bushing. They have lower friction properties and eliminate binding.
Sturdy subframe bushings will provide more driver feedback. Additionally, it will strengthen the rear body, eliminating any movement caused by the subframe. You can see this structural integration on the M3 and M4 models. The benefits of solid subframe bushings are numerous. They will improve rear-end handling without compromising drivability. So if you plan to install a solid subframe bushing, be sure to choose a solid bushing.

Capacitor classification

In the circuit, there is a high electric field on both sides of the capacitor grading bushing. This is due to their capacitor cores. The dielectric properties of the primary insulating layer have a great influence on the electric field distribution within the bushing. This article discusses the advantages and disadvantages of capacitor grade bushings. This article discusses the advantages and disadvantages of grading bushings for capacitors in DC power systems.
One disadvantage of capacitor grading bushings is that they are not suitable for higher voltages. Capacitor grading bushings are prone to serious heating problems. This may reduce their long-term reliability. The main disadvantage of capacitor grading bushings is that they increase the radial thermal gradient of the main insulation. This can lead to dielectric breakdown.
Capacitor grading bushing adopts cylindrical structure, which can suppress the influence of temperature on electric field distribution. This reduces the coefficient of inhomogeneity of the electric field in the confinement layer. Capacitor grading bushings have a uniform electric field distribution across their primary insulation. Capacitive graded bushings are also more reliable than nonlinear bushings.
Electric field variation is the most important cause of failure. The electrode extension layer can be patterned to control the electric field to avoid flashover or partial discharge of the primary insulating material. This design can be incorporated into capacitor grading bushings to provide better electric fields in high voltage applications. This type of bushing is suitable for a wide range of applications. This article discusses the advantages and disadvantages of capacitor grade bushings.


When choosing between plastic and metal sleeves, it is important to choose a product that can handle the required load. Plastic bushings tend to deteriorate and often crack under heavy loads, reducing their mechanical strength and service life. Metal bushings, on the other hand, conduct heat more efficiently, preventing any damage to the mating surfaces. Plastic bushings can also be made with lubricating fillers added to a resin matrix.
Plastic bushings have many advantages over metal bushings, including being cheap and versatile. Plastic bushings are now used in many industries because they are inexpensive and quick to install. These plastic products are also self-lubricating and require less maintenance than metals. They are often used in applications where maintenance costs are high or parts are difficult to access. Also, if they are prone to wear and tear, they are easy to replace.
Metal bushings can be made of PTFE, plastic or bronze and are self-lubricating. Graphite plugs are also available for some metal bushings. Their high load capacity and excellent fatigue resistance make them a popular choice for automotive applications. The bi-metallic sintered bronze layer in these products provides excellent load-carrying capacity and good friction properties. The steel backing also helps reduce processing time and avoids the need for additional pre-lubrication.


A plastic bushing is a small ball of material that is screwed onto a nut or locknut on a mechanical assembly. Plastic bushings are very durable and have a low coefficient of friction, making them a better choice for durable parts. Since they do not require lubrication, they last longer and cost less than their metal counterparts. Unlike metal bushings, plastic bushings also don’t scratch or attract dirt.
One type of acetal sleeve is called SF-2. It is made of metal alloy, cold rolled steel and bronze spherical powder. A small amount of surface plastic penetrated into the voids of the copper spherical powder. Plastic bushings are available in a variety of colors, depending on the intended application. SF-2 is available in black or grey RAL 7040. Its d1 diameter is sufficient for most applications.
Another acetal sleeve is UHMW-PE. This material is used in the production of bearings and in low load applications. This material can withstand pressures from 500 to 800 PSI and is widely available. It is also self-lubricating and readily available. Due to its high resistance to temperature and chemical agents, it is an excellent choice for low-load industrial applications. If you’re in the market for an alternative to nylon, consider acetal.
Positional tolerances in many automotive components can cause misalignment. Misaligned plastic bushings can negatively impact the driver’s experience. For example, the cross tubes used to mount the seat to the frame are made by a stamping process. The result is a misalignment that can increase torque. Also, the plastic bushing is pushed to one side of the shaft. The increased pressure results in higher friction, which ultimately results in a poor driving experience.
China manufacturer Needle Bearing Bolt Bearing for RV Speed Reducer   supplierChina manufacturer Needle Bearing Bolt Bearing for RV Speed Reducer   supplier
editor by CX 2023-04-26