China Professional Manufacturer direct sales High Precision Pillow Blcoks /Bearing House/Units  Agricultural Machinery parts UCP2 with Best Sales

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


Pillow blcoks – Standard duty
Set screw type
Unit No. Dimensions (mm/inch) Bolt Size mm inch Bearing No. Housing No. Weight (kg)
d h a e b s1 s2 g w t B n
UCP201 12 30.2 124 94 32 13 19 14 57 44.5 31 12.7 M10 UC201 P203 0.66 
UCP201-8 1/2 1-3/16 5 3-3/4 1-1/2 1/2 3/4 9/16 2-7/16 1-3/4 1.2205 0.5 3/8 UC201-8 0.66 
UCP202 15 30.2 124 94 32 13 19 14 57 44.5 31 12.7 M10 UC202 P203 0.66 
UCP202-9 9/16 1-3/16 5 3-3/4 1-1/2 1/2 3/4 9/16 2-7/16 1-3/4 1.2205 0.5 3/8 UC202-9 0.66 
UCP202-10 5/8 UC202-10 0.66 
UCP203 17 30.2 124 94 32 13 19 14 57 44.5 31 12.7 M10 UC203 P203 0.66 
UCP203-11 11/16 1-3/16 5 3-3/4 1-1/2 1/2 3/4 9/16 2-7/16 1-3/4 1.2205 0.5 3/8 UC203-11 0.66 
UCP204 20 33.3 127 94 32 13 19 14 57 44.5 31 12.7 M10 UC204 P204 0.70 
UCP204-12 3/4 1-5/16 5 3-3/4 1-1/2 1/2 3/4 9/16 2-7/16 1-3/4 1.2205 0.5 3/8 UC204-12 0.70 
UCP205 25 36.5 140 105 38 13 19 15 69.5 48 34.1 14.3 M10 UC205 P205 0.76 
UCP205-13 13/16 1-7/16 5-1/2 4-1/8 1-1/2 1/2 3/4 19/32 2-25/32 1-57/64 1.3425 0.563 3/8 UC205-13 0.85 
UCP205-14 7/8 UC205-14 0.83 
UCP205-15 15/16 UC205-15 0.82 
UCP205-16 1 UC205-16 0.81 
UCP206 30 42.9 160 121 44 17 20 17 84 53 38.1 15.9 M14 UC206 P206 1.24 
UCP206-17 1-1/16 1-11/16 6-19/64 4-3/4 1-47/64 43/64 25/32 21/32 3-5/16 2-5/64 1.5 0.626 1/2 UC206-17 1.27 
UCP206-18 1-1/8 UC206-18 1.26 
UCP206-19 1-3/16 UC206-19 1.24 
UCP206-20 1-1/4 UC206-20 1.23 
UCP207 35 47.6 167 127 48 17 20 18 93 59.5 42.9 17.5 M14 UC207 P207 1.58 
UCP207-20 1-1/4 1-7/8 6-9/16 5 1-7/8 43/64 25/32 45/64 3-21/32 2-11/32 1.689 0.689 1/2 UC207-20 1.64 
UCP207-21 1-5/16 UC207-21 1.61 
UCP207-22 1-3/8 UC207-22 1.58 
UCP207-23 1-7/16 UC207-23 1.55 
UCP208 40 49.2 181 136 50 17 20 18 98 69 49.2 19 M14 UC208 P208 1.89 
UCP208-24 1-1/2 1-15/16 7-1/4 5-13/32 2-7/8 43/64 25/32 45/64 3-15/16 2-23/32 1.937 0.748 1/2 UC208-24 1.93 
UCP208-25 1-9/16 UC208-25 1.90 
UCP209 45 54 190 146 54 17 20 20 106 69 49.2 19 M14 UC209 P209 2.14 
UCP209-26 1-5/8 2-1/8 7-15/32 5-3/4 2-1/8 43/64 25/32 25/32 4-11/64 2-23/32 1.937 0.748 1/2 UC209-26 2.24 
UCP209-27 1-11/16 UC209-27 2.20 
UCP209-28 1-3/4 UC209-28 2.14 
UCP210 50 57.2 203 159 60 20 23 21 113 74.5 51.6 19 M16 UC210 P210 2.66 
UCP210-29 1-13/16 2-1/4 8-1/8 6-1/4 2-3/8 25/32 29/32 53/64 4-29/64 2-15/16 2.571 0.748 5/8 UC210-29 2.78 
UCP210-30 1-7/8 UC210-30 2.73 
UCP210-31 1-15/16 UC210-31 2.68 
UCP210-32 2 UC210-32 2.64 
UCP211 55 63.5 218 171 57 20 23 23 125 76 55.6 22.2 M16 UC211 P211 3.31 
UCP211-32 2 2-1/2 8-5/8 6-47/64 2-3/8 25/32 29/32 29/32 4-59/64 3 2.189 0.874 5/8 UC211-32 3.46 
UCP211-33 2-1/16 UC211-33 3.40 
UCP211-34 2-1/8 UC211-34 3.35 
UCP211-35 2-3/16 UC211-35 3.29 
UCP212 60 69.8 239 184 70 20 23 25 138 89 65.1 25.4 M16 UC212 P212 4.90 
UCP212-36 2-1/4 2-3/4 9-1/2 7-1/4 2-3/4 25/32 29/32 63/64 5-7/16 3-1/2 2.563 1 5/8 UC212-36 5.03 
UCP212-37 2-5/16 UC212-37 4.95 
UCP212-38 2-3/8 UC212-38 4.88 
UCP212-39 2-7/16 UC212-39 4.81 
UCP213 65 76.2 264 203 70 25 28 27 150 89 65.1 25.4 M20 UC213 P213 5.15 
UCP213-40 2-1/2 3 10-7/16 8 2-3/4 63/64 1-3/32 1-1/16 5-29/32 3-1/2 2.563 1 3/4 UC213-40 5.24 
UCP213-41 2-9/16 UC213-41 5.15 
UCP214 70 79.4 266 210 72 25 28 27 156 74.6 30.2 M20 UC214 P214 6.20 
UCP214-42 2-5/8 3-1/8 10-15/32 8-17/64 2-27/32 63/64 1-3/32 1-1/16 6-9/64 2.937 1.189 3/4 UC214-42 6.41 
UCP214-43 2-11/16 UC214-43 6.31 
UCP214-44 2-3/4 UC214-44 6.21 
UCP215 75 82.6 275 217 74 25 28 28 162 77.8 33.3 M20 UC215 P215 7.16 
UCP215-45 2-13/16 3-1/4 10-53/64 8-35/64 2-29/32 63/64 1-3/32 1-3/32 6-3/8 3.063 1.311 3/4 UC215-45 7.41 
UCP215-46 2-7/8 UC215-46 7.30 
UCP215-47 2-15/16 UC215-47 7.19 
UCP215-48 3 UC215-48 7.07 
UCP216 80 88.9 290 232 78 25 28 30 174 82.6 33.3 M20 UC216 P216 8.10 
UCP216-49 3-1/16 3-1/2 11-1/2 9-1/8 3-1/16 63/64 1-3/32 1-3/16 6-27/32 3.252 1.311 3/4 UC216-49 8.28 
UCP216-50 3-1/8 UC21S-50 8.15 
UCP216-51 3-3/16 UC216-51 8.02 
UCP217 85 95.2 310 247 83 25 28 32 185 85.7 34.1 M20 UC217 P217 9.81 
UCP217-52 3-1/4 3-3/4 12-13/64 9-23/32 3-17/64 63/64 1-3/32 1-1/4 7-9/32 3.374 1.343 3/4 UC217-52 8.28 
UCP217-53 3-5/16 UC217-53 8.15 
UCP217-55 3-7/16 UC217-55 8.02 
UCP218 90 101.6 327 262 88 27 30 33 198 96 39.7 M22 UC218 P218 11.96 
UCP218-56 3-1/2 101.6 4 12-7/8 10-5/16 3-15/32 1-1/16 1-3/16 1-19/64 7-51/64 3.7795 1.563 7/8 UC218-56 12.07 

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.

How to Choose the Right Worm Shaft

You might be curious to know how to choose the right Worm Shaft. In this article, you will learn about worm modules with the same pitch diameter, Double-thread worm gears, and Self-locking worm drive. Once you have chosen the proper Worm Shaft, you will find it easier to use the equipment in your home. There are many advantages to selecting the right Worm Shaft. Read on to learn more.
worm shaft

Concave shape

The concave shape of a worm’s shaft is an important characteristic for the design of a worm gearing. Worm gearings can be found in a wide range of shapes, and the basic profile parameters are available in professional and firm literature. These parameters are used in geometry calculations, and a selection of the right worm gearing for a particular application can be based on these requirements.
The thread profile of a worm is defined by the tangent to the axis of its main cylinder. The teeth are shaped in a straight line with a slightly concave shape along the sides. It resembles a helical gear, and the profile of the worm itself is straight. This type of gearing is often used when the number of teeth is greater than a certain limit.
The geometry of a worm gear depends on the type and manufacturer. In the earliest days, worms were made similar to simple screw threads, and could be chased on a lathe. During this time, the worm was often made with straight-sided tools to produce threads in the acme plane. Later, grinding techniques improved the thread finish and reduced distortions resulting from hardening.
When a worm gearing has multiple teeth, the pitch angle is a key parameter. A greater pitch angle increases efficiency. If you want to increase the pitch angle without increasing the number of teeth, you can replace a worm pair with a different number of thread starts. The helix angle must increase while the center distance remains constant. A higher pitch angle, however, is almost never used for power transmissions.
The minimum number of gear teeth depends on the angle of pressure at zero gearing correction. The diameter of the worm is d1, and is based on a known module value, mx or mn. Generally, larger values of m are assigned to larger modules. And a smaller number of teeth is called a low pitch angle. In case of a low pitch angle, spiral gearing is used. The pitch angle of the worm gear is smaller than 10 degrees.
worm shaft

Multiple-thread worms

Multi-thread worms can be divided into sets of one, two, or 4 threads. The ratio is determined by the number of threads on each set and the number of teeth on the apparatus. The most common worm thread counts are 1,2,4, and 6. To find out how many threads you have, count the start and end of each thread and divide by two. Using this method, you will get the correct thread count every time.
The tangent plane of a worm’s pitch profile changes as the worm moves lengthwise along the thread. The lead angle is greatest at the throat, and decreases on both sides. The curvature radius r” varies proportionally with the worm’s radius, or pitch angle at the considered point. Hence, the worm leads angle, r, is increased with decreased inclination and decreases with increasing inclination.
Multi-thread worms are characterized by a constant leverage between the gear surface and the worm threads. The ratio of worm-tooth surfaces to the worm’s length varies, which enables the wormgear to be adjusted in the same direction. To optimize the gear contact between the worm and gear, the tangent relationship between the 2 surfaces is optimal.
The efficiency of worm gear drives is largely dependent on the helix angle of the worm. Multiple thread worms can improve the efficiency of the worm gear drive by as much as 25 to 50% compared to single-thread worms. Worm gears are made of bronze, which reduces friction and heat on the worm’s teeth. A specialized machine can cut the worm gears for maximum efficiency.

Double-thread worm gears

In many different applications, worm gears are used to drive a worm wheel. These gears are unique in that the worm cannot be reversed by the power applied to the worm wheel. Because of their self-locking properties, they can be used to prevent reversing motion, although this is not a dependable function. Applications for worm gears include hoisting equipment, elevators, chain blocks, fishing reels, and automotive power steering. Because of their compact size, these gears are often used in applications with limited space.
Worm sets typically exhibit more wear than other types of gears, and this means that they require more limited contact patterns in new parts. Worm wheel teeth are concave, making it difficult to measure tooth thickness with pins, balls, and gear tooth calipers. To measure tooth thickness, however, you can measure backlash, a measurement of the spacing between teeth in a gear. Backlash can vary from 1 worm gear to another, so it is important to check the backlash at several points. If the backlash is different in 2 places, this indicates that the teeth may have different spacing.
Single-thread worm gears provide high speed reduction but lower efficiency. A multi-thread worm gear can provide high efficiency and high speed, but this comes with a trade-off in terms of horsepower. However, there are many other applications for worm gears. In addition to heavy-duty applications, they are often used in light-duty gearboxes for a variety of functions. When used in conjunction with double-thread worms, they allow for a substantial speed reduction in 1 step.
Stainless-steel worm gears can be used in damp environments. The worm gear is not susceptible to rust and is ideal for wet and damp environments. The worm wheel’s smooth surfaces make cleaning them easy. However, they do require lubricants. The most common lubricant for worm gears is mineral oil. This lubricant is designed to protect the worm drive.
worm shaft

Self-locking worm drive

A self-locking worm drive prevents the platform from moving backward when the motor stops. A dynamic self-locking worm drive is also possible but does not include a holding brake. This type of self-locking worm drive is not susceptible to vibrations, but may rattle if released. In addition, it may require an additional brake to keep the platform from moving. A positive brake may be necessary for safety.
A self-locking worm drive does not allow for the interchangeability of the driven and driving gears. This is unlike spur gear trains that allow both to interchange positions. In a self-locking worm drive, the driving gear is always engaged and the driven gear remains stationary. The drive mechanism locks automatically when the worm is operated in the wrong manner. Several sources of information on self-locking worm gears include the Machinery’s Handbook.
A self-locking worm drive is not difficult to build and has a great mechanical advantage. In fact, the output of a self-locking worm drive cannot be backdriven by the input shaft. DIYers can build a self-locking worm drive by modifying threaded rods and off-the-shelf gears. However, it is easier to make a ratchet and pawl mechanism, and is significantly less expensive. However, it is important to understand that you can only drive 1 worm at a time.
Another advantage of a self-locking worm drive is the fact that it is not possible to interchange the input and output shafts. This is a major benefit of using such a mechanism, as you can achieve high gear reduction without increasing the size of the gear box. If you’re thinking about buying a self-locking worm gear for a specific application, consider the following tips to make the right choice.
An enveloping worm gear set is best for applications requiring high accuracy and efficiency, and minimum backlash. Its teeth are shaped differently, and the worm’s threads are modified to increase surface contact. They are more expensive to manufacture than their single-start counterparts, but this type is best for applications where accuracy is crucial. The worm drive is also a great option for heavy trucks because of their large size and high-torque capacity.

China Professional Manufacturer direct sales High Precision Pillow Blcoks /Bearing House/Units  Agricultural Machinery parts UCP2     with Best SalesChina Professional Manufacturer direct sales High Precision Pillow Blcoks /Bearing House/Units  Agricultural Machinery parts UCP2     with Best Sales