China Professional Manufacturer direct sales High Precision Flanged bearing unit SAPP series  Pillow Blocks /Bearing House/Units Agricultural Machinery parts with Free Design Custom

Product Description

Product Description

The TANN mounted bearing units is a bearing which combines the spherical outside surface ball bearing, seal, and a housing of high-grade cast iron or pressed steel. It features a variety of structure patterns, and is suitable for application under tough conditions.

Product Parameters

Pressed steel bearing unit
Light duty
    Unit No. Dimensions (mm / inch) Bolt Size SAPP Bearing No. mm inch Weight (kg) SBPP Bearing No. mm inch Weight (kg) Housing
d h a e b s g w B1 n B1 n
  201 12 22.2 86 68 25 9.5 3.2 43.8 M8 28.6 6.5 SA201 0.19  22 6 SB201 0.16  PP203
  201-8 1/2 7/8 3-3/8 2-43/64 63/64 3/8 0.126 1-23/32 5/16 1.126 0.2559 SA201-8   0.8661 0.2362 SB201-8    
  202 15 22.2 86 68 25 9.5 3.2 43.8 M8 28.6 6.5 SA202 0.19  22 6 SB202 0.16  PP203
  202-9 9/16 7/8 3-3/8 2-43/64 63/64 3/8 0.126 1-23/32 5/16 1.126 0.2559 SA202-9   0.8661 0.2362 SB202-9    
  202-10 5/8 SA202-10   0.8661 0.2362 SB202-10    
  203 17 22.2 86 68 25 9.5 3.2 43.8 M8 28.6 6.5 SA203 0.19  22 6 SB203 0.16  PP203
  203-11 11/16 7/8 3-3/8 2-43/64 63/64 3/8 0.126 1-23/32 5/16 1.126 0.2559 SA203-11   0.8661 0.2362 SB203-11    
  204 20 25.4 98 76 32 9.5 3.2 50.5 M8 31 7.5 SA204 0.23  25 7 SB204 0.23  PP204
  204-12 3/4 1 3-27/32 2-63/64 1-/1/4 3/8 0.126 1-63/64 5/16 1.2204 0.2953 SA204-12   0.9843 0.2756 SB204-12    
  205 25 28.6 108 86 32 11.5 4 56.6 M10 31 7.5 SA205 0.32  27 7.5 SB205 0.28  PP205
  205-13 13/16 1-1/8 4-1/4 3-25/64 1-/1/4 29/64 0.157 2-15/64 3/8 1.2204 0.2953 SA205-13   1.063 0.2953 SB205-13    
  205-14 7/8 SA205-14   SB205-14    
  205-15 15/16 SA205-15   SB205-15    
  205-16 1 SA205-16   SB205-16    
  206 30 33.3 117 95 38 11.5 4 66.3 M10 35.7 9 SA206 0.50  30 8 SB206 0.47  PP206
  206-17 1-1/16 1-5/16 4-39/64 3-47/64 1-1/2 29/64 0.157 2-39/64 3/8 1.4055 0.3543 SA206-17   1.1811 0.315 SB206-17    
  206-18 1-1/8 SA206-18   SB206-18    
  206-19 1-3/16 SA206-19   SB206-19    
  206-20 1-1/4 SA206-20   SB206-20    
  207 35 39.7 129 106 42 11.5 4.6 78 M10 38.9 9.5 SA207 0.71  32 8.5 SB207 0.57  PP207
  207-20 1-1/4 1-9/16 5-5/64 4-5/32 1-21/32 29/64 0.181 3-1/8 3/8 1.5315 0.374 SA207-20   1.2598 0.3346 SB207-20    
  207-21 1-5/16 SA207-21   SB207-21    
  207-22 1-3/8 SA207-22   SB207-22    
  207-23 1-7/16 SA207-23   SB207-23    
  208 40 43.7 148 120 43 13 5 86.2 M12 43.7 11 SA208 0.91  34 9 SB208 0.78  PP208
  208-24 1-1/2 1-23/32 5-53/64 4-47/64 1-11/16 33/64 0.197 3-25/64 7/16 1.7205 0.433 SA208-24   1.3386 0.354 SB208-24    
  208-25 1-9/16 SA208-25   SB208-25    
  209 45 46.8 156 128 45 13 6 92.3 M12 43.7 11 SA209 1.09  41.2 10.2 SB209 1.02  PP209
  209-26 1-5/8 1-27/32 6-9/64 5-3/64 1-25/32 33/64 0.236 3-41/64 7/16 1.7205 0.433 SA209-26   1.622 0.402 SB209-26    
  209-27 1-11/16 SA209-27   SB209-27    
  209-28 1-3/4 SA209-28   SB209-28    


More Choices

Our main product ranges are ball bearings and full ranges of mounted bearing units, including 60 series, 62series, 63 series; thin-wall bearing such as 68 series and 69 series, and also flange bearings, inch bearings, high precision angular contact bearing; UC/UCP/UCF/UCFL/UCT, etc. Non-standard bearings based on customer’s demand are available too.

Wide range of products from strong supplying supplying chains to make suitable solution.

Advantage Products




Rational self- alignment
Larger load carrying capacity, relubrucable, longer service life of the units
Efficient, sealing ability of the units with covers is perfect
Solid housing, provide max rigidty against deformation for any condition
Easy and positive locking to shaft
Special heat-treatment on bearing inner ring prevent causing cracking
Unique device to prevent bearing outer ring rotation
Complete interchangeability between bearing and housing 
Easy installlation
Easy positioning for mounting


Agriculture Mining
Engineering Chemical machinery
Textile Plastic
Dyeing and fining Other industries

Company Profile

About Us

Focus on a variety of industries
Provide maintenance solutions
Optimize customer inventory and reduce cost

Established in 2012, HangZhou Granville is a branch of the Granville Group. With our experience, competitive prices and excellent service, we have won the praise of our customers. Our business involves standard and special industrial parts, automotive parts and construction machinery parts required for a variety of different industrial applications.
Our main products include
Bearing series :
ball bearings, deep groove ball bearings, self-aligning ball bearings, angularcontact ball bearings, cylindrical roller bearing, tapered roller bearings, thrust ball bearings, thrust rollerbearings, needle bearings, spherical bearings, joint bearings, pillow blocks, linear bearings, etc.
Accessories series:Automotive Spare Parts,Seals & O-rings ,Power transmission parts Chain and Sprocket
Our products are mainly exported to Europe, America, Middle East, Southeast Asia, India, Pakistan, Bangladesh, Singapore, Korea and other countries around the world. We have a large number of products in stock, which can be delivered with high efficiency in the shortest possible time to solve your matching problems in time. In addition, we have reliable quality and quantity of products to offer. We adhere to the principle of win-win situation and insist on “providing comprehensive quality products and best reputation” to provide excellent services to our customers.

What We Do

Comprehensive product range:
– Bearings
– Oil seals, Transmission belt
– Chain and Sprocket
– Hub assembly & Wheel bearings
– Coupling, castings
– Linear motion

Packaging & Shipping


Our Advantages

1. We have the most advanced bearing process equipment, CNC automatic facilities, and testing instruments.
2. We manufacture ball bearings and mounted bearing units, and also provide a strong full range of products, including electric motors and components One-stop partnerships products from our audited supply chain.
3. All products are manufactured exclusively by companies with ISO 9001:2008 certified Quality Systems which use state-of-the-art machines. The quality path starts from the beginning to deliver and goods’ quality trackable

Our Values
Behavior-based, service-oriented, focused on results and committed to continuous improvement

Advantage Manufacturing Processes and Quality Control:

01Heat Treatment
02 Centerless Grinding Machine 11200 (most advanced)
03 Automatic Production Lines for Raceway
04 Automatic Production Lines for Raceway
05 Ultrasonic Cleaning of Rings
06 Automatic Assembly
07 Ultrasonic Cleaning of Bearings
08 Automatic Greasing, Seals Pressing
09Measurement of Bearing Vibration (Acceleration)
10 Measurement of Bearing Vibration (Speed)
11 Laser Marking
12 Automatic Packing

After Sales Service

  1. Optimize customer inventory and reduce cost
  2. Provide maintenance solutions

Quality Warranty

Granville as a manufacturer of high quality products, guarantees compliance with the highest standards relative to the use of the best steel quality in the production process, the highest standards in the design of contact surfaces, as well as the most efficient packing and lubrication of parts. From material coming, quality control through all processes. Except interal test, goods to third party inspection if required. After the center of inspection and experiment being founded, effective methods of inspecting all kinds of raw materials are mastered and then the reliability of bearings is ensured. One of our main objectives is the continued improvement in the quality of our products and processes, in pursuit of which we obtained ISO certification 9001:2008 and TS16949. 


Q1.Can you accept OEM and customization?

A: Yes. We can customize it according to the samples and drawings you provide.

Q2.Do you keep a stock of these things?
A: In stocks

Q3.Can you provide samples free of charge?
A: Yes. We can provide samples free of charge. But the freight is paid by the customer.

Q4.What’s the delivery date?
A: The delivery time of sample orders is 3 working days.The bulk orders are 5-10 working days.

Q5: Why your price is higher than others?
A: Price = quality . We firmly believe that by the quality of the customer is always get more reliable than on price . So we insist on doing high-quality products.

Q6:What kind of transport do you have ?
A: According to the weight,we will choose the most appropriate mode of transport for you. Our freight forwarding is efficient and cheap

Pulley Type

There are several types of pulleys. These include fixed pulleys, load multipliers and movable pulleys. Below is a description of each pulley type. A load multiplier is a special type of pulley with multiple wheels for increased lifting capacity. It is used in a wide range of applications including power transmission and construction. Some common uses of pulleys are listed below.

moving pulley

Movable pulleys work by transferring the weight of a load to another object of the same mass. Since a live pulley is inherently frictionless and weightless, the force required to lift a load with it is the same as the weight of the load. This principle applies to tall buildings and residences. It is an excellent choice for lifting heavy objects such as furniture and washing machines.
A pulley is a mechanical device with a wheel that rotates on a shaft. The axle is attached to the wheel and is usually fixed. The movable pulley can be fixed or movable, both of which can change the direction of the force on the rope. Some pulleys can also change the magnitude and direction of the force. They are ideal for a variety of applications, from lifting heavy objects to transporting objects.
Another type of movable pulley works by transmitting force to another object. It has a free axis and the total force provided by the rope tension is balanced. Since the tension on the rope is constant in each segment, pulling 1 end of the rope will double the force on the shaft, resulting in 2 mechanical advantages. This mechanical advantage is the main reason why movable pulleys are so versatile.
Another form of moving pulley is called a KWL diagram. The KWL diagram summarizes the basic concepts of the drive wheel. KWL diagrams are an excellent way to assess a student’s understanding of the concepts discussed in the course. Word questions are a great way to check whether students understand concepts. When students answer the word questions correctly, the answer is yes!

Fixed wheel pulley

If you need to move heavy objects, a single fixed wheel pulley is not a good choice. Using a single fixed pulley might be similar to using a handbag, but it’s not very convenient. This type of pulley system relies on friction to transmit motion. As a result, it can slip and isn’t always reliable. Fortunately, you can find other options that work just as well.
Fixed pulleys are the most basic type of pulley. They consist of grooved wheels and ropes attached to objects. These pulleys make lifting easier. Because the rope or cable only moves in 1 direction, the movement of the object feels lighter. And they are also easy to install. However, before you buy a fixed wheel pulley, make sure it is strong enough to support the weight of the load.
The disadvantages of fixed pulleys are obvious. One of them is the lack of mechanical advantage. A fixed pulley pulls up with the same force as a single moving pulley, and a single fixed pulley is not particularly effective as a force multiplier. However, the effect is more pronounced when you combine multiple fixed-wheel pulleys. You will get double the power! So what do fixed wheel pulleys have to offer?
Fixed wheel pulleys can be as small as a ring. A single ring pulley requires twice as much force as the weight being pulled. Adding more loops to the rope will reduce the effort required to pull the weight. The mechanical advantage of a fixed pulley is proportional to the number of strands running to the free pulley. A 100-pound pull on the free end will lift a 300-pound load.

composite pulley

Compound pulleys are pulleys that can be used to change the direction of a control wire. It can also be used to modify the mechanical force of the wire by moving the item it is connected to. In galleons, compound pulleys are more common. They are often combined with other ropes for mechanical advantage. Here are some common uses for composite pulleys.
The ideal mechanical advantage of a pulley is equal to the number of rope segments that pull up the load. This means that the more rope segments, the less force is required. A compound pulley will have the ideal mechanical advantage of 2, which means it will generate more force than a simple pulley. Composite pulleys are also more efficient at transmitting force because their number of rope segments is usually equal to the unit weight.
Composite pulley systems use more than 2 pulleys and ropes. More pulleys will reduce the force required to move heavier objects. They are usually used in large sailboats. The system is also used on construction sites. It can be used for a variety of applications, including lifting large objects or transmitting electricity. You can imagine how it would change your life if you had to move a large sailboat, but the result would be the same: a composite pulley system would make it easier to lift a large sailboat.
Composite pulleys are also known as fixed pulleys. The fixed pulley is stationary, and the movable pulley moves back and forth. The latter is more effective when used with a detachable cord or strap. On the other hand, a moving pulley is a moving pulley and it gives you a mechanical advantage. You can imagine this pulley on a flagpole.

load multiplier

The multiplication system has 3 basic parts: the rope grab, the connector, and the pulley. While some basic multipliers may combine the 3 parts, the concept remains the same. The multiplication system can make pulling the rope easier by reducing the amount of friction that occurs. Below are some examples of multiplication systems. A compact rope grab is a great option for resetting the multiplier.
The load reduction that a pulley system can achieve is proportional to the number of ropes used to support it. Although most utility pulley systems use only 4 ropes, the theoretical maximum load reduction is a quarter of the actual load. In other words, the four-wheel system only reduces the weight of a 1,000-pound load by a quarter. That would require 167 pounds of force, a far cry from the 500-pound load a single pulley system can achieve.
The mechanical advantage of a pulley system can be calculated by calculating the ratio between the forces exerted on each wire. For example, a 90-kilogram load is supported by 3 ropes, each weighing about 30-5 pounds. The ropes on pulleys A and B each carry a load of 60 kg. Using this formula, a single pulley system will yield a mechanical advantage over 2 tractors.
To calculate the force required to pull the rope over the pulley, measure the angle and deflection between the ropes. The deflection angle when added to the included angle should equal 180 degrees. A 75 degree angle requires 159% of the load force. This means a total load multiplier of four. This formula is an important tool for calculating the force multiple of the pulley.

Disadvantages of fixed pulleys

There are 2 basic types of pulleys: movable and fixed. Active pulleys are more advanced, allowing the pulley to move according to the load. They reduce the force required to lift the load. Active roller pulleys are more compact and therefore take up less space. Both types are good for lifting heavier objects, but they each have their pros and cons.
Fixed wheel pulleys can be used to lift heavy objects. This type of pulley consists of a wheel with a fixed shaft that has grooves on its edges for guiding ropes or cables. This is a simple machine as no motor or engine is required to lift objects. When 2 or more wheels are used together, the ropes around the wheels form a powerful hoist.
Single wheel pulleys are not suitable for lifting. They tend to push things down. Also, they are unreliable because they rely on friction and can slip. Also, a single wheel pulley would require a lot of space. Another disadvantage of fixed-wheel pulleys is that they make it difficult to move heavy objects easily. Single fixed-wheel pulleys also tend to slip easily, making them a poor choice for many applications.
Fixed wheel pulleys are also easier to install and maintain than manually operated ones. It requires less space and lubrication than manual pulleys. Manual pulleys can cause injury because the operator will be lifting the full weight of the heavy object. Additionally, rope slippage can lead to muscle strains and rope burns. And the system requires frequent maintenance.

China Professional Manufacturer direct sales High Precision Flanged bearing unit SAPP series  Pillow Blocks /Bearing House/Units Agricultural Machinery parts     with Free Design CustomChina Professional Manufacturer direct sales High Precision Flanged bearing unit SAPP series  Pillow Blocks /Bearing House/Units Agricultural Machinery parts     with Free Design Custom