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Timken QMC20J311SEM is a spherical roller cartridge mounted unit (QMC) with a frame size 20. It features an imperial shaft and an eccentric locking mechanism (SEM). This housed unit is designed for heavy-duty applications requiring high radial load capacity and self-alignment, such as industrial conveyors, fans, and processing equipment.
MODEL QMC20J311SEM
$1,337.28 Each
Prices are subject to change
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Returnable:No
0.075 mm Shaft Size
3 11/16 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
126 mm Dimension R
0.37 in
128 mm Dimension L Fix
4.96 in
152.4 mm Dimension B Exp
2.92 in
20 mm Dimension L Exp
5.04 in
238.3 mm Dimension J (Bolt Size)
0.75 in
72.1 mm Dimension BC
9.38 in
74.2 mm Dimension B Fix
2.84 in
9.4 mm Eng Internal Radial Clearance - Max
0.0047 Eng Internal Radial Clearance - Min:0.0030 Engineering group:Mounted Bearing Float:0.083 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
Eccentric
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
3 11/16 in
Shaft Size Type
Imperial
Shaft Tolerance
0.0030 in
Static Load
113000 lbf
Bearings
Overview The Timken QMC20J311SEM SRB Housed Unit is a premium solution designed for applications requiring reliable and efficient operation. This housed unit features a piloted flange that enhances its stability and ease of installation in various environments. Engineered with Timken's renowned quality and precision, this product is ideal for heavy-duty machinery and equipment in industrial settings.
Key Features
- Robust Design: Constructed with high-quality materials to ensure durability and longevity under tough operating conditions.
- Piloted Flange: Integrated piloted design allows for easy alignment and secure mounting, minimizing installation time.
- Sealed Bearings: Equipped with sealed bearings to prevent contamination, extending service life and reducing maintenance needs.
- Load Capacity: Designed to handle significant axial and radial loads, making it suitable for demanding applications.
- Temperature Range: Operates effectively in a wide temperature range, ensuring reliable performance in various environments.
Applications
- Industrial Machinery: Perfect for use in conveyors, mixers, and other heavy machinery where reliability is critical.
- Automotive: Suitable for automotive applications requiring precision and durability.
- Energy Sector: Ideal for equipment used in power generation and energy management systems.
- Compatibility: Designed to fit seamlessly with other Timken products, making it a versatile choice for various engineering solutions.
Benefits
- Enhanced Reliability: Built to withstand harsh conditions, providing a dependable performance that reduces downtime.
- Efficient Operation: The design minimizes friction and heat generation, contributing to overall energy efficiency.
- Cost-Effectiveness: Long service life and reduced maintenance needs lead to lower total cost of ownership. --- 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.
| Brand | Omron |
| Model | ZE-Q21-2S |
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more