Setscrew Flange Mounted Bearings
Last Updated: April 1, 2025
Description
Setscrew flange mounted bearings are designed to secure the inner ring of the bearing to a shaft using setscrews. These bearings are typically used in applications where the bearing needs to be mounted securely to prevent movement along the shaft.
Working Principle
Setscrew flange mounted bearings work by using setscrews to fix the inner ring of the bearing to the shaft. This method of securing the bearing is particularly useful in preventing axial movement and ensuring that the bearing remains in place during operation. The setscrews apply pressure to the shaft, creating a frictional force that holds the bearing in position. This design is beneficial in applications where precise alignment and stability are crucial, as it helps maintain the integrity of the system by reducing the risk of misalignment and movement.
Applications
Setscrew flange mounted bearings are commonly used in various industrial applications where secure mounting is essential. Specific examples include conveyor systems, where the bearings support the rollers and ensure smooth operation, and in agricultural machinery, where they are used to support rotating shafts in equipment such as combines and tractors. These bearings are also found in HVAC systems, where they help support fan shafts and other rotating components.
Advantages over other Flange Mounted Bearings
One of the primary advantages of setscrew flange mounted bearings over other types of flange mounted bearings is their ability to provide a secure and stable connection to the shaft. This is particularly beneficial in applications where vibration or movement could cause other types of bearings to become loose or misaligned. Additionally, the use of setscrews allows for easy installation and adjustment, making these bearings a convenient choice for many applications.
Limitations
A limitation of setscrew flange mounted bearings is that the setscrews can cause damage to the shaft over time, especially if the shaft is made of a softer material. This can lead to wear and tear, potentially requiring more frequent maintenance or replacement of the shaft. Additionally, the use of setscrews may not be suitable for applications with high axial loads, as the frictional force may not be sufficient to prevent movement.
Considerations
When selecting setscrew flange mounted bearings, it is important to consider factors such as initial costs, operating expenses, and maintenance requirements. While these bearings may offer a cost-effective solution for many applications, the potential for shaft damage and the need for regular maintenance should be taken into account. Durability and accuracy are also important considerations, as the performance of the bearing can impact the overall efficiency and reliability of the system. Replacement and maintenance costs should be factored into the decision-making process, as these can vary depending on the specific application and operating conditions.
from OILES America Corporation
Oiles #80 is a proprietary blend of polyacetal resins and uniformly dispersed bearing lubricants. There are several derivatives of this material, each specifically formulated to satisfy a wide variety of application requirements. Oiles #80 is available in both flanged straight bore bushing and... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from RegalRexnord
5/8" Mounted Ball Bearing, Intermediate Duty, Cast Iron 4-Bolt Square Flange Block, Setscrew Locking, Single Lip Contact Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Design Units: Inch
from Triangle Manufacturing Company
Our two-bolt side flange mounted bearings contain a self-aligning reservoir bearing with either an oil cup or grease fitting. Manufactured in 16-gage galvanized steel, this versatile mount has been one of our most popular styles due to its wide use in mechanical equipment where light to medium loads... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Plain
- Design Units: Inch
from Magnus Mobility Systems, Inc.
Jilson Bearing Housings – made of high-grade solid PBT thermoplastic polyester – are the durable, corrosion-resistant replacement for conventional metal housings. These maintenance-free housings have excellent mechanical strength, stiffness and dimensional stability – and they... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Roller
- Flange Type: Non-piloted
from SKF/Global
Cast iron flange units are designed to support shafts through walls, bulkheads and other flat surfaces. The medium duty flange housings accommodate a larger bearing for a given shaft size, resulting in a greater load carrying capacity. Both series are supplied with a grease fitting for relubrication... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Flange Type: Non-piloted
from Quality Bearings & Components
Standard Duty | Four-Bolt. FLANGE MOUNTING BLOCKS-SET SCREW TYPE – INCH. • Cast Iron Housing. • Dual Seal Type [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Plain
- Design Units: Inch
from Emerson Bearing Co.
Standard duty with set screw lock. Available with: Set screw or eccentric locking collar. Corrosion resistant housing and bearing options include Cast iron, Stainless Steel, Thermoplastic, and Nickel plating. B-type seals or L3 triple lip seals available for extra sealing needs. Wide inner race... [See More]
- Shaft Securing: Setscrew
- Bearing / Housing Features: Offset Hole Pattern
- Mtg Configuration: 3-Bolt
- Design Units: Inch
from Lucas Industrial
Light duty setscrew type [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from RegalRexnord
5/8" Mounted Ball Bearing, Intermediate Duty, Cast Iron 4-Bolt Square Flange Block, Setscrew Locking, Single Lip Contact Seal, Nickel Plated Housing [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Design Units: Inch
from Triangle Manufacturing Company
Our four-bolt side flange mounted bearings contain a self-aligning reservoir bearing with either an oil cup or grease fitting. Manufactured in 16-gage galvanized steel, this versatile mount is stronger than its two-bolt version and can be used where heavier loads and normal shaft speeds are... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from SKF/Global
Two-bolt cast iron flange units flange units support shafts through walls, bulkheads and other flat surfaces, but have a more compact two-bolt design. This series is supplied with a grease fitting for lubrication and provide for initial bearing alignment. [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Flange Type: Non-piloted
from Quality Bearings & Components
Standard Duty | Two-Bolt. FLANGE MOUNTING BLOCKS-SET SCREW TYPE – INCH. • Cast Iron Housing. • Dual Seal Type [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Plain
- Design Units: Inch
from Emerson Bearing Co.
Medium duty with set screw lock. Available with: Set screw or eccentric locking collar. Corrosion resistant housing and bearing options include Cast iron, Stainless Steel, Thermoplastic and Nickel plating. B-type seals or L3 triple lip seals available for extra sealing needs. Wide inner race bearing... [See More]
- Shaft Securing: Setscrew
- Flange Type: Piloted
- Mtg Configuration: 4-Bolt
- Design Units: Metric
from RegalRexnord
3/4" Mounted Ball Bearing, Intermediate Duty, Cast Iron 4-Bolt Square Flange Block, Setscrew Locking, Single Lip Contact Seal, Steel End Cap [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Design Units: Inch
from Triangle Manufacturing Company
Our miniature center flange mounted bearings are designed for lighter duty applications or where smaller types of equipment impose space limitations. This design is somewhat stronger than side flange mountings, but requires a hole in the mounting panel so the assembly may protrude slightly to the... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from Quality Bearings & Components
FLANGETTE UNIT – INCH. • Chrome Steel Bearing. • 2-pc. Pressed Steel Housing. • Collar and Set Screw. NOTES: 1. Except for bore, bearings inspected to ABEC-1 tolerances. Bore tolerance. applies prior to collar assembly. 2. Recommended shaft tolerance: Nominal bore size -.0005". [See More]
- Shaft Securing: Setscrew; Locking Collar
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Design Units: Inch
from Emerson Bearing Co.
Medium duty with set screw lock. Available with: Set screw or eccentric locking collar. Corrosion resistant housing and bearing options include Cast iron, Stainless Steel, Thermoplastic and Nickel plating. B-type seals or L3 triple lip seals available for extra sealing needs. Wide inner race bearing... [See More]
- Shaft Securing: Setscrew
- Design Units: Metric
- Mtg Configuration: 4-Bolt
- Shaft Size: 3.94
from RegalRexnord
5/8" Mounted Ball Bearing, Standard Duty, Cast Iron 4-Bolt Square Flange Block, Setscrew Locking, Clearance Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Design Units: Inch
from Triangle Manufacturing Company
Cushion flange mounted bearings are designed for side mountings on panels, plates and housing, or anywhere that may require sound and vibration suppression. Used to provide load support for that axis, cushion flange mountings hold a variety of self-aligning bearing sizes. The cushion itself is made... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from Emerson Bearing Co.
Medium duty with set screw lock. Available with: Set screw or eccentric locking collar. Corrosion resistant housing and bearing options include Cast iron, Stainless Steel, Thermoplastic and Nickel plating. B-type seals or L3 triple lip seals available for extra sealing needs. Wide inner race bearing... [See More]
- Shaft Securing: Setscrew
- Design Units: Inch
- Mtg Configuration: 2-Bolt
- Shaft Size: 0.8750
from RegalRexnord
3/4" Mounted Ball Bearing, Intermediate Duty, Cast Iron 3-Bolt Bracket Flange Block, Setscrew Locking, Single Lip Contact Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 3-Bolt
- Bearing Type: Ball
- Design Units: Inch
from Triangle Manufacturing Company
Center flange mounted bearings are more affordable than side flange mount units and stronger because the load is centered over the flange. Engineered with three bolts and for use with our reservoir bearings, our center flange mountings offer precision bores, oil cups or grease fittings, and can be... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 3-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from Emerson Bearing Co.
Standard duty with set screw lock. Available with: Set screw or eccentric locking collar. Corrosion resistant housing and bearing options include Cast iron, Stainless Steel, Thermoplastic, and Nickel plating. B-type seals or L3 triple lip seals available for extra sealing needs. Wide inner race... [See More]
- Shaft Securing: Setscrew
- Design Units: Inch
- Mtg Configuration: 4-Bolt
- Shaft Size: 0.6250
from RegalRexnord
3/4" Mounted Ball Bearing, Intermediate Duty, Cast Iron 3-Bolt Bracket Flange Block, Setscrew Locking, Single Lip Contact Seal, Nickel Plated Housing, Food Grade Grease [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 3-Bolt
- Bearing Type: Ball
- Design Units: Inch
from Triangle Manufacturing Company
Mid flange mounted bearings are used for many applications. Our GA series is the same as the GB series except that the mounting does not include a back plate. This is provided by the customer, punching and forming this mounting surface to the proper dimensions to act as a back plate. This saves the... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 3-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from Emerson Bearing Co.
Standard duty with set screw lock. Available with: Set screw or eccentric locking collar. Corrosion resistant housing and bearing options include Cast iron, Stainless Steel, Thermoplastic, and Nickel plating. B-type seals or L3 triple lip seals available for extra sealing needs. Wide inner race... [See More]
- Shaft Securing: Setscrew
- Flange Type: Piloted
- Mtg Configuration: 4-Bolt
- Design Units: Inch
from RegalRexnord
1" Mounted Ball Bearing, Intermediate Duty, Cast Iron 3-Bolt Bracket Flange Block, Setscrew Locking, Single Lip Contact Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 3-Bolt
- Bearing Type: Ball
- Design Units: Inch
from Triangle Manufacturing Company
At Triangle, our two-bolt side flange mounted bearings contain a self-aligning bearing of either nylon, sintered bronze or sintered iron. Manufactured in 14-gage galvanized steel, this mount has more alignment variation possibilities than our FL (1/2 ”-7/8 ”) series mounted bearing. Due... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from Emerson Bearing Co.
Standard duty with set screw lock. Available with: Set screw or eccentric locking collar. Corrosion resistant housing and bearing options include Cast iron, Stainless Steel, Thermoplastic, and Nickel plating. B-type seals or L3 triple lip seals available for extra sealing needs. Wide inner race... [See More]
- Shaft Securing: Setscrew
- Design Units: Inch
- Mtg Configuration: 2-Bolt
- Shaft Size: 0.6250
from RegalRexnord
3/4" Mounted Ball Bearing, Standard Duty, Cast Iron 3-Bolt Bracket Flange Block, Setscrew Locking, Single Lip Contact Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 3-Bolt
- Bearing Type: Ball
- Design Units: Inch
from Triangle Manufacturing Company
Our two-bolt side flange mounted bearings contain an oil impregnated bearing of either sintered bronze or sintered iron. Manufactured in 13-gauge galvanized steel and with either round or square mounting holes, this mount is larger than the FL or FJ (1/2 ”-7/8 ”) series mounts. Due to... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from RegalRexnord
1 1/4" Mounted Ball Bearing, Intermediate Duty, Cast Iron 4-Bolt Round Piloted Flange Block, Setscrew Locking, Single Lip Contact Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Flange Type: Piloted
from Triangle Manufacturing Company
At Triangle, our two-bolt side flange mounted bearings contain a self-aligning bearing of either nylon, sintered bronze or sintered iron and is manufactured in 16-gauge galvanized steel. [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from RegalRexnord
7/8" Mounted Ball Bearing, Standard Duty, Cast Iron 4-Bolt Round Piloted Flange Block, Setscrew Locking, Clearance Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Flange Type: Piloted
from Triangle Manufacturing Company
At Triangle, our miniature side flange mounted bearings contain a self-aligning bearing of either nylon, sintered bronze or sintered iron. Manufactured in 16-gage galvanized steel, this two-bolt mount has been one of our most popular styles due to its wide use in mechanical equipment where... [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Plain
- Bearing / Housing Features: Spherical or Self-aligning bearing.
from RegalRexnord
1 1/4" Mounted Ball Bearing, Heavy Duty Expansion Unit, Cast Iron 4-Bolt Round Piloted Flange Cartridge Block, Setscrew Locking, Clearance Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Flange Type: Piloted
from RegalRexnord
7/8" Mounted Ball Bearing, Heavy Duty, Cast Iron 4-Bolt Round Fixed Piloted Flange Block, Setscrew Locking, Clearance Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Flange Type: Piloted
from RegalRexnord
15/16" Mounted Ball Bearing, Heavy Duty, Cast Iron 4-Bolt Square Expansion Flange Block, Setscrew Locking, Clearance Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
1 3/4" Mounted Ball Bearing, Standard Duty, High-Test Iron 4-Bolt Flange Block, Setscrew Locking, Single Lip Contact Seal, Relubricatable, Inner Ring Drilled to Accept Expansion Pin [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
1" Mounted Ball Bearing, Standard Duty, High-Test Iron 3-Bolt Flange Block, Setscrew Locking, Single Lip Contact Seal, Non-Relubricatable [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 3-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
15/16" Mounted Ball Bearing, Heavy Duty, Cast Iron 4-Bolt Square Fixed Flange Block, Setscrew Locking, Clearance Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
1 7/16" Mounted Ball Bearing, Heavy Duty, Cast Iron 4-Bolt Square Flange Block, Setscrew Locking, Clearance Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 4-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
5/8" Mounted Ball Bearing, Intermediate Duty, Cast Iron 2-Bolt Flange Block, Setscrew Locking, Single Lip Contact Seal [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
5/8" Mounted Ball Bearing, Intermediate Duty, Cast Iron 2-Bolt Flange Block, Setscrew Locking, Single Lip Contact Seal, Nickel Plated Housing [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
5/8" Mounted Ball Bearing, Standard Duty, Cast Iron 2-Bolt Flange Block, Setscrew Locking, Clearance Seal, Tight Fit of Outer Race in Housing [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
5/8" Mounted Ball Bearing, Intermediate Duty, High-Test Cast Iron 2-Bolt Flange Block, Setscrew locking, Clearance Seal, Steel Retainer, Reversed Assembly, Nickel Plated Housing, Relubricatable [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
1" Mounted Ball Bearing, Intermediate Duty, High-Test Iron 2-Bolt Flange Block, Setscrew Locking, Single Lip Contact Seal, Relubricatable, Nickel Plated Housing, Food Grade Grease, Black Oxide Coated IR and OR [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Lubrication: Relubricatable
from RegalRexnord
1 3/8" Mounted Ball Bearing, Intermediate Duty, High-Test Iron 2-Bolt Flange Block, Setscrew Locking, Single Lip Contact Seal, Nickel Plated Housing, Relubricatable [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Lubrication: Relubricatable
from RegalRexnord
5/8" Mounted Ball Bearing, Standard Duty, High-Test Iron 2-Bolt Flange Block, Setscrew Locking, Single Lip Contact Seal, Non-relubricatable [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Design Units: Inch
from RegalRexnord
1" Mounted Ball Bearing, Standard Duty, High-Test Iron 2-Bolt Flange Block, Setscrew Locking, Single Lip Contact Seal, Relubricatable [See More]
- Shaft Securing: Setscrew
- Mtg Configuration: 2-Bolt
- Bearing Type: Ball
- Design Units: Inch