China Best Sales Tapered Roller Bearing 25*62*17mm China Roller Bearing 30305 with Good quality

Product Description


The taper roller bearing is composed of an inner ring, outer ring, and tapered rolling elements. Tapered roller bearings can withstand combined loads (axial and radial). And this kind of design allows rolling movement without the rollers slipping off the tracks of the outer and inner rings.

The contact angle of the tapered roller bearings on the rolling tracks is variable, which in each case offsets the application axial and radial loading ratio; at a larger angle, a greater ability to withstand axial loads.

Our company has a wide range of tapered roller bearings with detachable elements that make them easily adjustable in applications.

The most popular applications for this bearing type are:

  • Wheel hubs for light, industrial, and agricultural vehicles
  • Transmissions (gearboxes and differentials)
  • Machine tool spindles
  • PTOs



Product Details
  Products Taped Roller Bearing
  Brand Customers’ requirements/PPB bearing
  Series 35710 series,30300 series,31300 series,32000 series,32200 series,32300 series, 31000 series,33000 series,33100 series,33200 series,32200 series,inch and non-standard series
  Bearing Material  Chrome steel GCR15, Carbon steel, stainless steel 
  Cage Material  Steel, Brass
  Quality Standard ISO/TS16949:2009
  Service OEM or Customers’ Sample
  Payment Terms T/T, Western Union, L/C
  Application Widely used in general machinery, Cars, Trucks, Railways, Ships, Mines, Metals, Power, Agricultural machinery and so on 
  Packaging 1): plastic tube +Kraft paper +wooden box

2): plastic tube +Kraft paper +Carton+pallet

3): As customers’ requirements


35710 series bearings are 1 series of tapered roller bearings. The bearing is a radial thrust type rolling bearing in which the rolling elements are tapered rollers. Tapered bearings can be divided into single row tapered roller bearings, double row tapered roller bearings, and four-row tapered roller bearings. Tapered roller bearings are usually of a separate type, ie a conical inner ring assembly consisting of an inner ring with a roller and cage assembly that can be mounted separately from the outer bevel (outer ring).

Model List (Please contact us for more models)


Item No. D d B N.W./PC Item No. D d B N.W./PC
35712 15.0  35.0  11.0  0.053  30302 15 42 13 0.094
35713 17.0  40.0  12.0  0.079  30303 17 47 14 0.129
35714 20.0  47.0  14.0  0.126  30304 20 52 15 0.17
35715 25.0  52.0  15.0  0.154  30305 25 62 17 0.263
35716 30.0  62.0  17.5  0.231  30306 30 72 21 0.387
35717 35.0  72.0  17.0  0.331  30307 35 80 21 0.515
35718 40.0  80.0  18.0  0.422  30308 40 90 23 0.747
35719 45.0  85.0  19.0  0.474  30309 45 100 25 0.984
35710 50.0  90.0  20.0  0.529  3571 50 110 27 1.28
35711 55.0  100.0  21.0  0.713  3571 55 120 29 1.63
35712 60.0  110.0  22.0  0.904  3571 60 130 31 1.99
35713 65.0  120.0  23.0  1.130  3571 65 140 33 2.44
35714 70.0  125.0  24.0  1.260  3571 70 150 35 2.98
35715 75.0  130.0  25.0  1.360  3571 75 160 37 3.54
35716 80.0  140.0  26.0  1.670  3 0571 80 170 39 4.27
35717 85.0  150.0  31.0  2.060  3 0571 85 180 41 5.25
35718 90.0  160.0  30.0  2.540  3 0571 90 190 43 5.79
35719 95.0  170.0  32.0  3.040  3571 95 200 45 6.32
35710 100.0  180.0  34.0  3.720  30320 100 215 47 7.76
35711 105.0  190.0  36.0  4.380  30321 105 225 49 8.74
35712 110.0  200.0  38.0  5.210  30322 110 240 50 10.4
35714 120.0  215.0  40.0  6.200  30324 120 260 55 13.7
35716 130.0  230.0  40.0  6.940  30326 130 280 58 17.3
35718 140.0  250.0  42.0  8.733  30328 140 300 62 21.4

A wide range of applications:

Single row tapered roller bearings are typically used in applications with combined loads. Single row tapered roller bearings can also be used in sets. Single row tapered roller bearings can be matched face-to-face, back-to-back or in tandem to deliver specific advantages depending on operating conditions. 

Double row tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills and machines in the mining industry.

Four-row tapered roller bearings are used almost exclusively in work roll applications such as rolling mills. 

Our Bearing Advantage:

1. ISO Standard

2. Bearing Small order accepted

3. In Stock bearing

4. OEM bearing service

5. Professional:20 years manufacture bearing

6. Customized bearing, Customer’s bearing drawing or samples accepted

7. Competitive price bearing

8. TT Payment or Western Union or PayPal

Our Company

Packaging Details 1 piece in a single box
50 boxes in a carton
20 cartons in a pallet
Nearest Port ZheJiang or HangZhou
Lead Time For stock parts: 1-5 days.
If no stock parts:
<200 pcs: 15-30 days
≥200 pcs: to be negotiated.


1. What’s the minimum order quantity?

We don’t have the minimum order quantity. We can also provide a free sample, but you need to pay the freight.

2. Do you provide ODM&OEM order service?

Yes, we provide ODM&OEM services to customers around the world, and we can customize different brands and different sizes of packing boxes according to customers’ requirements.

3. After-sales service and warranty time

We guarantee that our products will be free from defects in materials and workmanship within 12 months from the date of delivery. The warranty is void due to improper use, incorrect installation, and physical damage.

4. How to place an order

Send us an email of the model, brand, quantity, consignee information, model of transportation, and payment
Confirm payment and arrange the production.

5. What are your packing conditions?

We use standardized export packaging and environmental protection packaging materials. If you have legally registered patent, we will package the goods in your brand box after receiving your authorization

6. What are your payment terms?

T/T is 30% of the payment in advance and 70% balance before delivery. Before you pay the balance, we will show you photos or videos of the products and packaging.


7. What products does your company supply?
– Auto Bearings (Wheel Bearings, Wheel Hub Bearings, Clutch Bearings, Belt Tensioners, and Water Pump Bearings, etc. )    

-Industrial Bearings (Deep Groove Ball Bearings, Tapered Roller Bearings, and Pillow Block Bearings).

What Is a V-Belt?

What is a v-belt? It is a rubber belt that is trapezium-shaped and has an elastomer core that holds the parts together. Its elastomer core is generally made of polyurethane and has good shock resistance and flexural strength. V-belts sometimes have 2 sections, 1 of which is a compression rubber and the other cushion rubber. They can be narrow or wide, depending on their use.

Classical V-belts replace leather belts

Classical V-belts are a popular choice among truck drivers because they are more durable. They are typically made of polymer or rubber, with fibers from other materials added for reinforcement. These belts are a good replacement for leather belts and offer many benefits. They are durable, offer excellent temperature and oil resistance, and are easy to use. If you’re considering replacing your current belt, consider buying a replacement belt made of the same material.
Most classical V-belts are used individually and come in A and B sizes. They are rarely used in single-belt drives. Buying several A or B belts instead of 1 C belt can save money. The narrow V-belts also provide higher power ratings. This is due to their narrow profile, which places more of the reinforcing cord under the sheave. Narrow V-belts are ideal for heavy duty applications.
When you’re replacing an existing V-belt, you’ll need to measure its top width and circumference. Once you’ve determined these parameters, you’ll be able to select the right replacement belt. Make sure to take measurements of the belt’s dimensions and top width before ordering. Using these measurements will help you determine the best size for your new belt. You’ll be able to tell whether you need a larger or smaller belt after measuring the top width and circumference.
If you’re looking to replace your leather belt with a belt made of synthetic material, a Classical V-belt may be the right choice. Classical V-belts are available in many materials and are more durable than leather. And because they are so versatile, they are the perfect replacement for your current belts. You’ll be glad you did. So, don’t be afraid to experiment with this type of belt. They’ll work well in any setting, including heavy equipment.
When buying a Classical V-belt, be sure to check the dimensions and type of belt you choose. These are available in notched or cogged designs. Notches are a great way to reduce bending stress. Notches also help dissipate heat from the belt, a major factor in premature belt failure. Notched V-belts are designed to balance a combination of flexibility and tensile cord support. They are spaced properly to minimize cracking and undercord damage.
Unlike leather belts, Classical V-belts are made of synthetic materials. They are easy to install, have a wide range of sizes, and come in light to heavy-duty varieties. The V-belt’s trapezoidal shape helps it track in the grooves of pulleys and prevents it from slipping while in use. It also helps in reducing power loss, since it’s easier to grip the pulleys than leather.

Narrow v-belts are more efficient

There are 5 basic types of V-belts. Their differences in cross-sectional size and power transmission make them superior to multiple single v-belts. The diagram below shows these types and how each differs from 1 another. The included angle of each belt is 40 degrees. The lower number indicates the more efficient version. Narrow V-belts are generally less expensive. Narrow v-belts are generally more efficient than wider belts.
There are several factors that influence a V-belt’s efficiency. Although the efficiency is high when a new belt is installed, the efficiency can drop to the low nineties. However, these belts are relatively resilient, and even with lower efficiency can function properly. Even if the efficiency of a V-belt is lower than it could be, it will still function. In fact, the higher the efficiency, the more energy it will save.
The first is the type of pulley. A narrow V-belt is more flexible than its wider counterpart. The belt pitch diameter is 32deg or 38deg. In addition, the belt can be cogged for added flexibility. In this way, the belt will not touch the bottom of the groove, but will only contact the inclined flanks. Without this wedge effect, the belt’s total friction force is higher. This means that it can transfer higher forces.
While a V-belt looks like a glorified rubber band, it has undergone tremendous technological development since it was first used in 1917. Synthetic rubber compounds and other cover materials have replaced rubber in the belt. New construction methods, tensile cord improvements, and cross-section profiles have resulted in a confusing variety of V-belts. Their differences, however, are based on the type of application for which they’re used.
Another type of V-belt is the raw edge variety. This type of belt is commonly used in manufacturing facilities. This type of belt requires less energy to operate. The raw edge also resists hardening. This is important since unmatched flexibility results in a smooth belt. Also, notched V-belts reduce vibration by 80%. Further, angular misalignment increases the risk of premature failure of a V-belt.
These belts differ in their overall design. While conventional V-belts are more common, narrow V-belts are more efficient and versatile. They are made of different types of rubber and reinforcements, which combine to create a trapezium-shaped cross-section. They can handle fractional loads and even 500 horsepower. Furthermore, their durability is largely dependent on their ability to withstand poor operating conditions.
Double-sided v-belts have unique features. These belts are used in applications with multiple pulleys. They can be operated clockwise or counter-clockwise. They can also be used to drive around multiple reverse bends. Further, they are more efficient and quieter than their counterparts. Finally, double-sided v-belts have 2 compression cores. The tension cord runs through both sections.

Double cogged v-belts increase lateral rigidity to reduce belt whip

A double cogged v-belt is a hybrid of a traditional double versus a cogged vee-belt. These belts are useful for applications that require a large amount of flexibility without compromising durability. The double cogged design also allows the belt to follow a serpentine path. The varying dimensions of a double cogged v-belt depend on manufacturer standards.
A v-belt is measured by defining the centerline, the inside length of the v-belt, and the pitch line, which is the distance between the top and bottom sides of the trapezium. The width and height of a v-belt are defined by its cross-section. Each cross-section is given a different designation, including the width and height.
A standard V-belt is a v-belt with a fabric cover. It provides firmness in a smaller space and is less prone to belt whip when used in heavy-duty applications. Its slim profile and light gauge tensile cord make it suitable for many industrial applications. The standard length of a double cogged v-belt varies from 530 to 3,000 mm.
Single cogged v-belts are commonly used in manufacturing machines that operate in close proximity to 1 another. Single cogged v-belts increase lateral rigidity and reduce belt whip. They are also ideal for heavy-duty applications, such as in mining or quarrying. Double cogged v-belts also increase lateral rigidity to minimize belt whip.
The elastomer core of a v-belt is surrounded by tension cords. These tension cords are embedded into the rubber compound, creating a composite structure that provides a high degree of shock resistance and flexural strength. The tension cords are often made of steel, polyester, or aramid fibers. This material makes it much stronger and more durable.
A double cogged v-belt is a highly rigid option for applications where lateral rigidity is an important concern. The double cogged design also increases lateral rigidity to reduce belt whip and enhances power transmission efficiency. Double cogged v-belts also offer positive slip-proof engagement. These belts are also easier to maintain, require less maintenance, and require no lubrication.

China Best Sales Tapered Roller Bearing 25*62*17mm China Roller Bearing 30305     with Good qualityChina Best Sales Tapered Roller Bearing 25*62*17mm China Roller Bearing 30305     with Good quality