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Timken QACW20A400SEM is a spherical roller mounted unit (SRB Housed Unit). This QACW series unit features a Frame 20 housing, designed for heavy-duty industrial applications requiring self-alignment and high radial load capacity. The spherical roller bearing insert provides tolerance for shaft misalignment.
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MODEL QACW20A400SEM
$1,776.69 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
120.7 mm Dimension RA
0.16 in
122.7 mm Dimension L Fix
4.75 in
152.4 mm Dimension B Exp
2.58 in
20 mm Dimension KA
1.63 in
238.3 mm Dimension J (Bolt Size)
0.75 in
4.1 mm Dimension SA
4.59 in
41.4 mm Dimension L Exp
4.83 in
63.5 mm Dimension BC
9.38 in
65.5 mm Dimension B Fix
2.5 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
C - Dynamic Load (Basic)
97700 lbf 435000 N
C0 - Static Load
113000 lbf 502000 N
Dimension B Exp
2.58 in 65.5 mm
Dimension B Fix
2.5 in 63.5 mm
Dimension BC
9.38 in 238.3 mm
Dimension C
6 in 152.4 mm
Dimension D
8.13 in 206.5 mm
Dimension E
6.63 in 168.4 mm
Dimension F
10.88 in 276.4 mm
Dimension G
8.125 in 206.4 mm
Dimension H
1 in 25.4 mm
Dimension J (Bolt Size)
0.75 in 20 mm
Dimension KA
1.63 in 41.4 mm
Dimension L Exp
4.83 in 122.7 mm
Dimension L Fix
4.75 in 120.7 mm
Dimension M
2.97 in 75.4 mm
Dimension N
2.25 in 57.2 mm
Dimension RA
0.16 in 4.1 mm
Dimension SA
4.59 in 116.6 mm
Dynamic Load (Basic)
97700 lbf
e - Geometry Factor
0.24
Eng Internal Radial Clearance - Max
0.0047
Eng Internal Radial Clearance - Min
0.0030
Eng Internal Radial ClearancMax
0.0047
Eng Internal Radial ClearancMin
0.003
Engineering Group
Mounted Bearing
Float
0.083 in 2.108 mm
Full Timken Part Number
QACW20A400SB QACW20A400SC QACW20A400SEB QACW20A400SEC QACW20A400SEM QACW20A400SEN QACW20A400SEO QACW20A400SET QACW20A400SM QACW20A400SMNG QACW20A400SN QACW20A400SO QACW20A400ST
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 0.120 mm
Pre Install Clearance Min
0.0030 in 0.075 mm
Shaft Size
4 in
Shaft Size Type
Imperial
Shaft Tolerance
0.0030 in 0.076 mm
Static Load
113000 lbf
Y1 - Geometry Factor
2.85
Y2 - Geometry Factor
4.24
Bearings The **Timken QACW20A400SEM SRB Housed Unit** is a high-performance piloted flange bearing designed to deliver exceptional reliability and efficiency in various industrial applications. Engineered with precision and built to withstand demanding environments, this housed unit ensures optimal performance for rotating equipment in automotive, aerospace, and industrial machinery sectors. ## Key Features • **Construction**: Features a robust housing made from high-quality materials that provide enhanced durability and resistance to wear and tear. • **Load Capacity**: Designed to support substantial radial and axial loads, ensuring stable operation under heavy-duty conditions. • **Dimensions**: The flange dimensions are meticulously engineered to offer precise alignment and fit, minimizing the risk of misalignment during operation. • **Sealing System**: Equipped with advanced sealing technology that protects against contamination, extending the lifespan of the bearing. • **Temperature Range**: Operates effectively in a wide temperature range, making it suitable for diverse industrial environments. ## Applications • **Automotive**: Ideal for use in vehicle assembly and maintenance, providing reliable support for various automotive components. • **Aerospace**: Utilized in critical aerospace applications where precision and reliability are paramount. • **Industrial Machinery**: Perfect for heavy machinery and equipment that require dependable bearing solutions for optimal performance. • **Compatibility**: Designed to fit seamlessly with other Timken products and various industrial systems, ensuring versatility in application. ## Benefits • **Enhanced Reliability**: The Timken brand is synonymous with quality, assuring users of superior performance and longevity in operational settings. • **Reduced Downtime**: With its robust design and advanced sealing features, this housed unit minimizes the risk of failure and maintenance needs, leading to increased production efficiency. • **Cost-Effective**: By reducing the frequency of replacements and maintenance, the Timken QACW20A400SEM offers a cost-effective solution for businesses looking to optimize their operations. --- *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