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Timken QMMH18J307SET is a spherical roller hanger bearing unit with a QMMH mount code for vertical shaft support. This housed unit features a frame size 18 and uses a twin eccentric collar (SET) locking mechanism for secure shaft attachment. It is designed for heavy-duty applications requiring high radial load capacity and self-alignment.
MODEL QMMH18J307SET
$964.37 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
0.060 mm Shaft Size
3 7/16 in Shaft Tolerance:0.0030 in
0.076 mm Shaft size type
Imperial Thread Size J:1 1/4-7UNC Y1 - Geometry Factor:2.90 Y2 - Geometry Factor:4.31 e - Geometry Factor:0.23
0.100 mm Pre Install Clearance Min
0.0024 in
160.3 mm Dimension R
0.12 in
3 mm Eng Internal Radial Clearance - Max
0.0039 Eng Internal Radial Clearance - Min:0.0024 Engineering group:Mounted Bearing Float:0.083 in
Bearing number
22218 C - Dynamic Load (Basic):79700 lbf 355000 N C0 - Static Load:87200 lbf 388000 N Dimension:6.31 in
Bearing Number
22218
C - Dynamic Load (Basic)
79700 lbf 355000 N
C0 - Static Load
87200 lbf 388000 N
Dimension A
6.31 in 160.3 mm
Dimension B
10.25 in 260.4 mm
Dimension C
4.76 in 120.9 mm
Dimension D
7.88 in 200.2 mm
Dimension E
2.5 in 63.5 mm
Dimension F
3 in 76.2 mm
Dimension G
3 in 76.2 mm
Dimension K
1.44 in 36.6 mm
Dimension L
3.91 in 99.3 mm
Dimension M
2.59 in 65.8 mm
Dimension R
0.12 in 3 mm
Dimension S
4.03 in 102.4 mm
Dynamic Load (Basic)
79700 lbf
e - Geometry Factor
0.23
Eng Internal Radial Clearance - Max
0.0039
Eng Internal Radial Clearance - Min
0.0024
Eng Internal Radial ClearancMax
0.0039
Eng Internal Radial ClearancMin
0.0024
Engineering Group
Mounted Bearing
Float
0.083 in 2.108 mm
Full Timken Part Number
QMMH18J307SB QMMH18J307SC QMMH18J307SEB QMMH18J307SEC QMMH18J307SEM QMMH18J307SEN QMMH18J307SEO QMMH18J307SET QMMH18J307SM QMMH18J307SN QMMH18J307SO QMMH18J307ST
Geometry Factor
2.9
Grease Lubrication - B/C/O Seal
1000 rpm
Grease Lubrication - M/N Seal
1400 rpm
Grease Lubrication - T Seal
2000 rpm
Locking Style
Eccentric
Oil Lubrication - B/C/O Seal
1000 rpm
Oil Lubrication - M/N Seal
1400 rpm
Oil Lubrication - T Seal
2400 rpm
Pre Install Clearance Max
0.0039 in 0.100 mm
Pre Install Clearance Min
0.0024 in 0.060 mm
Shaft Size
3 7/16 in
Shaft Size Type
Imperial
Shaft Tolerance
0.0030 in 0.076 mm
Static Load
87200 lbf
Thread Size J
1 1/4-7UNC
Y1 - Geometry Factor
2.90
Y2 - Geometry Factor
4.31
Bearings The TIMKEN QMMH18J307SET SRB Housed Unit is a top-tier roller hanger bearing designed to deliver exceptional performance and durability for a wide range of industrial applications. Manufactured by Timken, a leader in engineered bearings and industrial motion products, this housed unit provides reliability and efficiency, making it an ideal choice for various heavy-duty environments.
Key Features
| Robust Design | Features a sturdy housed unit construction that enhances stability and load distribution, suitable for high-demand applications. |
|---|---|
| Precision Engineering | Engineered to exacting tolerances, ensuring smooth operation and reduced friction. |
| Durable Materials | Constructed from high-quality steel for superior strength and resistance to wear, contributing to longer service life. |
| Easy Installation | Designed for straightforward mounting, simplifying the setup process and minimizing downtime. |
| Versatile Compatibility | Can be integrated into multiple systems, making it suitable for a variety of industrial machinery and applications. |
Applications
| Industrial Machinery | Perfect for conveyor systems, material handling equipment, and other machinery requiring reliable bearing support. |
|---|---|
| Heavy-Duty Use | Ideal for environments that involve heavy loads and continuous operation, ensuring consistent performance under stress. |
| Manufacturing and Automation | Supports automation systems where precision and reliability are crucial for operational efficiency. |
Benefits
| Enhanced Performance | Offers reduced friction and heat generation, leading to improved efficiency and energy savings. |
|---|---|
| Increased Reliability | Timken's reputation for quality ensures dependable operation, minimizing the risk of downtime and maintenance costs. |
| Longer Lifespan | The durable construction of the housed unit extends the service life of the bearing, providing value over time. 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