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Timken QAC20A400SEM is an adapter cartridge mounted spherical roller bearing unit. This housed unit features a single eccentric locking collar for secure shaft attachment. It is designed for heavy-duty industrial applications requiring high load capacity and self-alignment, such as conveyors, fans, and large industrial gearboxes.
MODEL QAC20A400SEM
$1,761.71 Each
Prices are subject to change
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Returnable:No
0.075 mm Shaft Size
4 in Shaft Tolerance:0.0030 in
0.076 mm Shaft size type
Imperial Y1 - Geometry Factor:2.85 Y2 - Geometry Factor:4.24 e - Geometry Factor:0.24
0.120 mm Pre Install Clearance Min
0.0030 in
116.6 mm Eng Internal Radial Clearance - Max
0.0047 Eng Internal Radial Clearance - Min:0.0030 Engineering group:Mounted Bearing Float:0.083 in
126.2 mm Dimension RA
0.37 in
128.3 mm Dimension L Fix
4.97 in
152.4 mm Dimension B Exp
2.93 in
20 mm Dimension KA
1.63 in
238.3 mm Dimension J (Bolt Size)
0.75 in
41.4 mm Dimension L Exp
5.05 in
72.1 mm Dimension BC
9.38 in
74.4 mm Dimension B Fix
2.84 in
9.4 mm Dimension SA
4.59 in
Bearing number
22220 C - Dynamic Load (Basic):97700 lbf 435000 N C0 - Static Load:113000 lbf 502000 N Dimension:6 in
Bearing Number
22220
Dynamic Load (Basic)
97700 lbf
Eng Internal Radial ClearancMax
0.0047
Eng Internal Radial ClearancMin
0.003
Engineering Group
Mounted Bearing
Float
0.083 in
Geometry Factor
4.24
Grease Lubrication - B/C/O Seal
900 rpm
Grease Lubrication - M/N Seal
1200 rpm
Grease Lubrication - T Seal
1600 rpm
Housing Construction
Piloted Flange Cartridge
Locking Style
Single Concentric
Oil Lubrication - B/C/O Seal
900 rpm
Oil Lubrication - M/N Seal
1200 rpm
Oil Lubrication - T Seal
2000 rpm
Pre Install Clearance Max
0.0047 in
Pre Install Clearance Min
0.0030 in
Shaft Size
4 in
Shaft Size Type
Imperial
Shaft Tolerance
0.0030 in
Static Load
113000 lbf
TIMKEN QAC20A400SEM SRB Housed Unit The TIMKEN QAC20A400SEM is a high-performance self-aligning ball bearing housed unit designed to provide exceptional reliability and efficiency in demanding industrial applications. Engineered by Timken, a leading name in the bearing industry, this housed unit is an ideal solution for those seeking robust performance in various operational environments. ## Key Features • **Self-Aligning Design**: The QAC20A400SEM features a self-aligning design that accommodates misalignment, ensuring smooth operation even under challenging conditions. • **Durable Construction**: Constructed with high-quality materials, this housed unit offers superior resistance to wear and fatigue, enhancing its longevity and reliability. • **Piloted Flange Mounting**: The unit includes a piloted flange for easy installation and secure mounting, simplifying maintenance and replacement tasks. • **Sealed Protection**: The built-in seals provide effective protection against contaminants, reducing the risk of premature failure and extending maintenance intervals. • **Versatile Compatibility**: Designed to fit a variety of applications, the QAC20A400SEM is compatible with different shaft sizes and can be utilized in diverse industrial settings. ## Applications • **Industrial Machinery**: Perfect for use in conveyor systems, material handling equipment, and various industrial machines requiring reliable bearings. • **Automotive Applications**: Suitable for automotive components where durability and performance are critical. • **General Engineering**: Ideal for applications across sectors such as energy, agriculture, and manufacturing where precision and longevity are vital. • **Compatibility**: Works seamlessly with other Timken products and systems, ensuring a comprehensive solution for your maintenance and operational needs. ## Benefits • **Enhanced Reliability**: Timken's engineering ensures that the QAC20A400SEM operates reliably in harsh environments, reducing downtime and maintenance costs. • **Increased Efficiency**: The self-aligning feature allows for better load distribution and minimizes friction, leading to improved energy efficiency and productivity. • **Longer Service Life**: With its robust construction and effective sealing, this housed unit is designed to withstand rigorous operational demands, providing a longer service life compared to standard bearings. --- *Product information compiled with AI assistance for reference purposes.*
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read moreHow do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
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SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more