Product Description

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UCT 201-212

>>Why choose us
 

	NAME	DATA	BENEFITS
HOUSING MATERIAL	Cast iron	HT200 / Class 25B / GG20 / Cr.20	High stress loading Bending stess<300 Mpa 80~230HBW
BEARING MATERIAL	Bearing steel	Gcr15 / 52100 / 100Cr6	High & uniform hardness(61~65HRC) High resistence
TRANSPORT PACKAGE	Color box/Waterproof Plastic	In Individual 1 / in several pieces together	Customized solutions for your requirements Bulk sale or whole sale Dealer or terminal customer
QUALIFICATION	International Standard Organization	ISO9001	Guaranteed product qulity and company credit
BRAND	TANN	Experienced export manufacture for more than 10 years	Professional technical advices Experienced market solutions Thoughtful and careful services

Features:

• UCT take-up units are suggested for industrial applications where normal loads are encountered.
• UCT take-up units are used where shaft adjustment and belt-tightening devices are required, such as in conveyor applications.
• These units provide compact, efficient supports for adjustable shafts and conveyor take-up pulleys.
• Each unit comes assembled and ready for mounting.
• These units use wide inner ring ball bearings with self-aligning spherical outside diameters that compensate for shaft misalignment.
• TANN UCT series housed units feature the TANN set screw locking (UC) bearing insert.
• Bearing pre-lubricated and ready for immediate installation.
• Grease fitting supplied for re-lubrication.
• The bonded seal design is well-suited for industrial applications involving wet or dirty environments.
• Slot spacing and width are interchangeable with competitive units.
  Housing designed for ease of bearing

Applications: mining, metallurgy, agriculture, chemical industry, textile, printing and dyeing, conveying machinery, etc. 

>>CLUE

1  >>  Technical Data 

2  >>  Advantages

3  >>  Manufacture Process

4  >>  Packaging

5 >>  TANN other series of products

1 >> Technical Data

Click to the corresponding page

UCT 201-212

Unit No.	Dimensions (mm / inch)																	Bearing No. mm inch	Housing No.	Weight (kg)
	d	O	g	p	q	S	b	k	e	a	w	j	l	h	t	B	n
UCT201	12	16	10	51	32	19	51	12	76	89	94	32	21	61	44.5	31	12.7	UC201	T204	0.80
UCT201-8	1/2	5/8	25/64	2-1/64	1-1/4	3/4	2-1/64	15/32	2-63/64	3-1/2	3-11/16	1-1/4	13/16	2-13/32	1-3/4	1.2205	0.5	UC201-8		0.79
UCT202	15	16	10	51	32	19	51	12	76	89	94	32	21	61	44.5	31	12.7	UC202	T204	0.79
UCT202-9	9/16	5/8	25/64	2-1/64	1-1/4	3/4	2-1/64	15/32	2-63/64	3-1/2	3-11/16	1-1/4	13/16	2-13/32	1-3/4	1.2205	0.5	UC202-9		0.79
UCT202-10	5/8																	UC202-10		0.79
UCT203	17	16	10	51	32	19	51	12	76	89	94	32	21	61	44.5	31	12.7	UC203	T204	0.78
UCT203-11	11/16	5/8	25/64	2-1/64	1-1/4	3/4	2-1/64	15/32	2-63/64	3-1/2	3-11/16	1-1/4	13/16	2-13/32	1-3/4	1.2205	0.5	UC203-11		0.77
UCT204	20	16	10	51	32	19	51	12	76	89	94	32	21	61	44.5	31	12.7	UC204	T204	0.76
UCT204-12	3/4	5/8	25/64	2-1/64	1-1/4	3/4	2-1/64	15/32	2-63/64	3-1/2	3-11/16	1-1/4	13/16	2-13/32	1-3/4	1.2205	0.5	UC204-12		0.76
UCT205	25	16	10	51	32	19	51	12	76	89	97	32	24	62	48	34.1	14.3	UC205	T205	0.81
UCT205-13	13/16	5/8	25/64	2-1/64	1-1/4	3/4	2-1/64	15/32	2-63/64	3-1/2	3-13/16	1-1/4	15/16	2-7/16	1-7/8	1.3425	0.563	UC205-13		0.85
UCT205-14	7/8																	UC205-14		0.84
UCT205-15	15/16																	UC205-15		0.82
UCT205-16	1																	UC205-16		0.81
UCT206	30	16	10	56	37	22	57	12	89	102	113	37	28	70	53	38.1	15.9	UC206	T206	1.22
UCT206-17	1-1/16	5/8	25/64	2-7/32	1-29/64	55/64	2-1/4	15/32	3-1/2	4-1/64	4-29/64	1-29/64	1-3/32	2-3/4	2-3/32	1.5	0.626	UC206-17		1.23
UCT206-18	1-1/8																	UC206-18		1.24
UCT206-19	1-3/16																	UC206-19		1.22
UCT206-20	1-1/4																	UC206-20		1.21
UCT207	35	16	13	64	37	22	64	12	89	102	129	37	30	78	59.5	42.9	17.5	UC207	T207	1.44
UCT207-20	1-1/4	5/8	33/64	2-33/64	1-29/64	55/64	2-33/64	15/32	3-1/2	4-1/64	5-5/64	1-29/64	1-3/16	3-5/64	2-11/32	1.689	0.689	UC207-20		1.50
UCT207-21	1-5/16																	UC207-21		1.46
UCT207-22	1-3/8																	UC207-22		1.44
UCT207-23	1-7/16																	UC207-23		1.41
UCT208	40	19	16	83	49	29	83	16	102	114	144	49	33	89	69	49.2	19	UC208	T208	2.40
UCT208-24	1-1/2	3/4	5/8	3-17/64	1-15/16	1-9/64	3-17/64	5/8	4-1/64	4-31/64	5-43/64	1-15/16	1-5/16	3-1/2	2-23/32	1.937	0.748	UC208-24		2.44
UCT208-25	1-9/16																	UC208-25		2.41
UCT209	45	19	16	83	49	29	83	16	102	117	144	49	35	87	69	49.2	19	UC209	T209	2.36
UCT209-26	1-5/8	3/4	5/8	3-17/64	1-15/16	1-9/64	3-17/64	5/8	4-1/64	4-39/64	5-43/64	1-15/16	1-3/8	3-27/64	2-23/32	1.937	0.748	UC209-26		2.46
UCT209-27	1-11/16																	UC209-27		2.42
UCT209-28	1-3/4																	UC209-28		2.38
UCT210	50	19	16	83	49	29	86	16	102	117	149	49	37	90	74.5	51.6	19	UC210	T210	2.43
UCT210-29	1-13/16	3/4	5/8	3-17/64	1-15/16	1-9/64	3-17/64	5/8	4-1/64	4-39/64	5-55/64	1-15/16	1-15/32	3-35/64	2-15/16	2.571	0.748	UC210-29		2.55
UCT210-30	1-7/8																	UC210-30		2.50
UCT210-31	1-15/16																	UC210-31		2.45
UCT210-32	2																	UC210-32		2.41
UCT211	55	25	19	102	64	35	95	22	130	146	171	64	38	106	76	55.6	22.2	UC211	T211	4.11
UCT211-32	2	63/64	3/4	4-1/64	2-1/32	1-3/8	3-3/4	55/64	5-1/8	5-3/4	6-47/64	2-33/64	1-1/2	4-11/64	3	2.189	0.874	UC211-32		4.26
UCT211-33	2-1/16																	UC211-33		4.20
UCT211-34	2-1/8																	UC211-34		4.15
UCT211-35	2-3/16																	UC211-35		4.09
UCT212	60	32	19	102	64	35	102	22	130	146	194	64	42	119	89	65.1	25.4	UC212	T212	4.97
UCT212-36	2-1/4	1-17/64	3/4	4-1/64	2-1/32	1-3/8	4-1/64	55/64	5-1/8	5-3/4	7-41/64	2-33/64	1-21/32	4-11/16	3-1/2	2.563	1	UC212-36		5.10
UCT212-37	2-5/16																	UC212-37		5.02
UCT212-38	2-3/8																	UC212-38		4.95
UCT212-39	2-7/16																	UC212-39		4.88

2 >> Advantages

KEY WORDS	DESCRIPTIONS
MAINTENANCE	Low maintenance due to its self-aligning capabilities
LUBRICATION	Fast and easy re-lubrication due to a built-in lubrication hole
SELF-ALIGNMENT	Rational self-alignment
LOAD	Larger load carrying capacity, relubricable, longer service life of the units
SEAL	Efficient, sealing ability of the units with covers is perfect
HOUSE	Solid housing, provide maximum rigidity against deformation for any condition
LOCK	Easy and positive locking to shaft
HEAT-TREATMENT	Special heat-treatment on bearing inner ring prevent causing cracking
DEVICE	Unique device to prevent bearing outer ring rotation
INTERCHANGEABILITY	Complete interchangeability between bearing and housing
INSTALLATION	Easy installation
POSITION	Easy positioning for mounting

3 >> Manufacture Process

FACTORY WARRANTED

-Granville can offers an array of tools for efficientofferthey maintenance. -We also offer reliability systems and services to help maintenance. -Personnel maximize operating performance and detect equipment. -Dealing with problems before they become critical.

Advantage Manufacturing Processes& Quality Control		We strictly follow the core of quality management process control: ✓ APQP: product quality advance plHangZhou ✓ SPC: Statistical process control ✓ MSA: Measurement system analysis ✓ FMEA: Analysis of potential failure modes and consequences ✓ PPAP: Production part approval procedure
01	Heat Treatment
02	Centerless Grinding Machine 11200 (most advanced)
03	Automatic P roduction Lines for Raceway
04	Automatic P roduction Lines for Raceway
05	Ultras onic Cleaning of Rings
06	Automatic Ass embly
07	Ultras onic Cleaning of Bearings
08	Ultras onic Cleaning of Bearings
09	Measurement of Bearing Vibration (Acceleration)
10	Measurement of Bearing Vibration (Speed)
11	Laser Marking
12	Automatic Packing

4 >> Packaging

color box

HangZhou, China

FOB HangZhou

5 >> TANN other series of products

 

 

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Please feel free to get information from Granville:)

 

Manufacturing
Advance automatic lines
Granville takes her every effort in purchasing the most advanced bearing process equipment, CNC automatic facilities are widely used in the factory and we are keep investing to improve more.

Comprehensive
Full range bearing & units
We provide a strong full range products, including:
Radial ball bearings
Pillow block and wide range of housed units
Electric motor and components
One-stop partnerships products

Premium Quality
Quality control from beginning
All products are manufactured exclusively by companies with ISO 9001:2008 certified Quality System which use state-of-the-art machines.The quality path starts from beginning to deliver and goods’ quality trackable.

Lead Screws and Clamp Style Collars

If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:

Acme thread

The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.

Lead screw coatings

The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.

Clamp style collars

The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these 2 styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.

Ball screw nut

The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during 1 rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with 1 or 2 independent closed paths. Multi-circuit ball nuts have 2 or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.