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Lubrication Lubrication |
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 | Combined Radial and Thrust |
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Dynamic Radial Load Capacity Dynamic RadialLoad Capacity |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Flange Thickness Flange Thickness |
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Lubrication Method Lubrication Method |
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Dynamic Thrust Load Capacity Dynamic ThrustLoad Capacity |
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About Linear Bearings
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About Shaft Collars
Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.
More
About Plain Bearings
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About Shaft Couplings
More
Oil-Embedded Flanged Sleeve Bearings
Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface. They are also known as Oilite® bearings.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
| For Housing ID | Lg. | Flange OD | Flange Thick. | Dynamic Radial Load Capacity | Dynamic Thrust Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
Metric SAE 841 Bronze Bearings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For 4mm Shaft Dia. | ||||||||||
| 7mm | 6mm | 10mm | 1.5mm | 70 lbs. @ 120 rpm | 200 lbs. @ 120 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 0000000 | 00000 |
Oil-Embedded Sleeve Bearings
Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface. They are also known as Oilite® bearings.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
| For Housing ID, mm | Lg., mm | Dynamic Radial Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
For 4 mm Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 7 | 4 | 47 lbs. @ 120 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 7 | 6 | 70 lbs. @ 120 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 0000000 | 0000 |
| 7 | 8 | 95 lbs. @ 120 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 0000 |
| 8 | 3 | 36 lbs. @ 120 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 0000 |
| 8 | 4 | 49 lbs. @ 120 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 0000 |
| 8 | 6 | 73 lbs. @ 120 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 0000 |
| 8 | 8 | 95 lbs. @ 120 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 0000 |
Panel-Mount Oil-Embedded Sleeve Bearings
Unlike other sleeve bearings, these do not need to be fully inserted into a housing. Their unique shape creates a permanent, secure hold in thin panels. Bearings swivel to accommodate up to 5° of shaft misalignment. On startup, friction causes the bronze to release a thin layer of oil on the bearing’s surface. Not for use with plastic panels.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
| Lg. | Spline OD | For Min. Sheet Metal Thick. | Dynamic Radial Load Capacity | Misalignment Capability | Lubrication | Lubricant | Temperature Range, °F | Each | |
Metric SAE 840 Bronze Bearings | |||||||||
|---|---|---|---|---|---|---|---|---|---|
For 4mm Shaft Dia. | |||||||||
| 10.2mm | 14mm | 1mm | 125 lbs. @ 120 rpm | 5° | Lubricated | SAE 45 Oil | -20° to 200° | 0000000 | 00000 |
High-Load Dry-Running Sleeve Bearings
Plastic Bearings
with Steel Shell
A metal shell adds strength.
Bronze-backed PTFE bearings with steel shell combine high-load and high-speed capabilities. They resist swelling when exposed to moisture and are electrically conductive.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
| For Housing ID | Lg. | Dynamic Radial Load Capacity | Temperature Range, °F | Each | |
Metric Bronze-Backed PTFE Plastic Bearings with Steel Shell | |||||
|---|---|---|---|---|---|
For 4mm Shaft Dia. | |||||
| 5.5mm | 6mm | 370 lbs. @ 120 rpm | -320° to 530° | 0000000 | 00000 |
Quick-Grip Screw-Clamp Bushings
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Each | |
Steel | |||||
|---|---|---|---|---|---|
| 4mm | 16mm | 19mm | 120 | 0000000 | 000000 |
Linear Ball Bearings
Bearings are for use with round end-supported shafts. To install, slide bearings into a housing (not included) and secure with two retaining rings (sold individually).
Fixed-alignment bearings are for use where shaft misalignment is unlikely.
For technical drawings and 3-D models, click on a part number.
Load Capacity, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia., mm | Overall Lg., mm | For Housing ID, mm | With End Seals | Dynamic | Static | Temperature Range, ° F | For Shaft Material | Each | |
Steel Bearings with Steel Balls | |||||||||
| 4 | 12 | 8.000 - 8.015 | No | 15 | 25 | -4° to 176° | Stainless Steel, Steel | 00000000 | 000000 |
High-Temperature Linear Ball Bearings
The choice for low-friction motion in high-temperature environments. Bearings are for use with round end-supported shafts and have a fixed-alignment design for applications where shaft misalignment is unlikely. To install, slide bearings into a housing (not included) and secure with two retaining rings (sold individually).
For technical drawings and 3-D models, click on a part number.
Load Capacity, lbs. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia., mm | Overall Lg., mm | For Housing ID, mm | With End Seals | Dynamic | Static | Dynamic Load Capacity at Max. Temperature | Temperature Range, ° F | For Shaft Material | Each | |
Steel Bearings with Steel Balls | ||||||||||
| 4 | 12 | 8.000 - 8.015 | No | 15 | 25 | 15 lbs. @ 230° F | -4° to 230° | Stainless Steel, Steel | 00000000 | 000000 |
Set Screw Shaft Collars
Keep these shaft collars in place by tightening their set screw into the shaft. The tip of the screw digs in for a secure hold, but will mar the shaft’s surface. For maximum holding power, make sure the set screw material is harder than your shaft material. Use these shaft collars to position and retain power transmission components such as sprockets, pulleys, and bearings. You can also use them to limit the movement of a shaft.
Carbon steel collars are strong and wear resistant. Collars with a black-oxide finish have some corrosion resistance, but only in dry environments. Their dark color can be useful for matching other parts in your system. Collars that are blue make it easy to identify metric collars at a glance. They’re tinted to match other blue metric fasteners.
303 stainless steel collars are corrosion resistant and highly machinable.
DIN 705 collars meet an international standard for shaft collar dimensions.
For technical drawings and 3-D models, click on a part number.
Set Screw | |||||||
|---|---|---|---|---|---|---|---|
| For Shaft Dia., mm | OD, mm | Wd., mm | Type | No. Included | Specifications Met | Each | |
Carbon Steel | |||||||
| 4 | 8 | 5 | Hex Socket | 1 | DIN 705 | 0000000 | 00000 |
Black-Oxide 1215 Carbon Steel | |||||||
| 4 | 10 | 5 | Hex Socket | 1 | __ | 00000000 | 0000 |
Blue Passivated Carbon Steel | |||||||
| 4 | 8 | 5 | Hex Socket | 1 | DIN 705 | 0000000 | 0000 |
303 Stainless Steel | |||||||
| 4 | 8 | 5 | Hex Socket | 1 | DIN 705 | 0000000 | 0000 |
| 4 | 10 | 5 | Hex Socket | 1 | __ | 00000000 | 0000 |
Clamping Shaft Collars
These metal collars are stronger than plastic shaft collars. They clamp evenly around the shaft to create a strong, mar-free hold. To use, slide onto your shaft and tighten the clamping screw to secure.
Black-oxide steel collars have some corrosion resistance. Zinc-plated steel collars have moderate corrosion resistance. Aluminum collars are lightweight and have good corrosion resistance. Anodized aluminum collars are lightweight like unfinished aluminum collars, but they’re more corrosion resistant and have better screw seating torque, which means they’re less likely to shift. 303 stainless steel collars have excellent corrosion resistance. 316 stainless steel collars have excellent corrosion and chemical resistance.
For technical drawings and 3-D models, click on a part number.
Clamping Screw | ||||||
|---|---|---|---|---|---|---|
| For Shaft Dia., mm | OD, mm | Wd., mm | Type | No. Included | Each | |
Black-Oxide 1215 Carbon Steel | ||||||
| 4 | 18 | 9 | Socket Head Screw | 1 | 00000000 | 00000 |
Zinc-Plated 1215 Carbon Steel | ||||||
| 4 | 16 | 9 | Socket Head Screw | 1 | 000000000 | 0000 |
2024 Aluminum | ||||||
| 4 | 16 | 9 | Socket Head Screw | 1 | 000000 | 0000 |
Anodized 2024 Aluminum | ||||||
| 4 | 16 | 9 | Socket Head Screw | 1 | 00000000 | 0000 |
303 Stainless Steel | ||||||
| 4 | 18 | 9 | Socket Head Screw | 1 | 0000000 | 00000 |
316 Stainless Steel | ||||||
| 4 | 16 | 9 | Socket Head Screw | 1 | 00000000 | 00000 |
Washdown Clamping Shaft Collars
Suitable for use in washdown applications, these plastic collars also offer good chemical resistance. They clamp evenly around the shaft to create a strong, mar-free hold. To use, slide onto your shaft and tighten the clamping screw to secure.
Acetal collars have a naturally slippery surface and resist swelling when exposed to moisture.
For technical drawings and 3-D models, click on a part number.
Clamping Screw | White Acetal Plastic | |||||
|---|---|---|---|---|---|---|
| For Shaft Dia., mm | OD, mm | Wd., mm | Type | No. Included | Each | |
| 4 | 16 | 9 | Socket Head Screw | 1 | 00000000 | 00000 |
Clamping Two-Piece Shaft Collars
These metal collars are stronger than plastic shaft collars. The two-piece design allows you to install them anywhere on a shaft without removing components or having access to the ends of the shaft. Collars clamp evenly around the shaft to create a strong, mar-free hold. Tighten the clamping screws to secure.
Black-oxide steel collars have some corrosion resistance. Zinc-plated steel and chrome-plated steel collars have moderate corrosion resistance with a bright finish. Aluminum collars are lightweight and have good corrosion resistance. In addition to the benefits of aluminum, anodized aluminum collars have extra corrosion resistance, and you can tighten the clamping screw with more torque, so they stay in place. 303 stainless steel collars have excellent corrosion resistance. 316 stainless steel collars have excellent corrosion and chemical resistance.
For technical drawings and 3-D models, click on a part number.
Clamping Screw | ||||||
|---|---|---|---|---|---|---|
| For Shaft Dia., mm | OD, mm | Wd., mm | Type | No. Included | Each | |
Black-Oxide 1215 Carbon Steel | ||||||
| 4 | 16 | 9 | Socket Head Screw | 2 | 0000000 | 00000 |
Zinc-Plated 1215 Carbon Steel | ||||||
| 4 | 16 | 9 | Socket Head Screw | 2 | 0000000 | 00000 |
2024 Aluminum | ||||||
| 4 | 16 | 9 | Socket Head Screw | 2 | 000000 | 0000 |
Anodized 2024 Aluminum | ||||||
| 4 | 16 | 9 | Socket Head Screw | 2 | 0000000 | 00000 |
303 Stainless Steel | ||||||
| 4 | 16 | 9 | Socket Head Screw | 2 | 0000000 | 00000 |
316 Stainless Steel | ||||||
| 4 | 16 | 9 | Socket Head Screw | 2 | 0000000 | 00000 |
Washdown Clamping Two-Piece Shaft Collars
Suitable for use in washdown applications, these plastic collars also offer good chemical resistance. The two-piece design allows you to install them anywhere on a shaft without removing components or having access to the ends of the shaft. Collars clamp evenly around the shaft to create a strong, mar-free hold. Tighten the clamping screws to secure.
Acetal collars have a naturally slippery surface and resist swelling when exposed to moisture.
For technical drawings and 3-D models, click on a part number.
Clamping Screw | White Acetal Plastic | |||||
|---|---|---|---|---|---|---|
| For Shaft Dia., mm | OD, mm | Wd., mm | Type | No. Included | Each | |
| 4 | 16 | 9 | Socket Head Screw | 2 | 0000000 | 000000 |
Two-Piece Shaft Couplings
Install and remove these shaft couplings without disconnecting the shafts, motors, and other attached components—they’re made in two pieces so you don’t need to slide them onto shaft ends. They’re also useful when you have limited access to the ends of the shafts. These couplings clamp onto the shafts, creating a secure hold that won’t mar them. Good for high-torque applications, they have a rigid construction. However, their rigidity means these couplings can only connect shafts that are well aligned.
Steel couplings are stronger and handle higher torque loads than aluminum and stainless steel couplings.
303 stainless steel couplings resist corrosion, so they’re often used in wet conditions, such as with mixers and pumps.
For technical drawings and 3-D models, click on a part number.
Servomotor Precision Flexible Shaft Couplings
Able to handle high twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications. Couplings are aluminum and stainless steel for corrosion resistance and allow zero backlash (no play). They grip evenly around your shaft for a strong hold without marring the shaft. Tighten the clamping screws to secure.
For technical drawings and 3-D models, click on a part number.
Misalignment Capability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Overall Lg. | OD | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Axial | For Motion Type | Each | |
2017 Aluminum and 304 Stainless Steel | ||||||||||
| 3/16" × 4mm | 1 1/64" | 3/4" | 10,000 | 7 | 0.004" | 1° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 000000 |
| 1/4" × 4mm | 1 1/64" | 3/4" | 10,000 | 7 | 0.004" | 1° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 00000 |
| 5/16" × 4mm | 1 1/64" | 3/4" | 10,000 | 7 | 0.004" | 1° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 00000 |
| 4mm × 4mm | 1 1/64" | 3/4" | 10,000 | 7 | 0.004" | 1° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 00000 |
| 4mm × 5mm | 1 1/64" | 3/4" | 10,000 | 7 | 0.004" | 1° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 00000 |
| 4mm × 6mm | 1 1/64" | 3/4" | 10,000 | 7 | 0.004" | 1° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 00000 |
| 4mm × 8mm | 1 1/64" | 3/4" | 10,000 | 7 | 0.004" | 1° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 00000 |
Clamping Vibration-Damping
Precision Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screws to secure. Good for precision motor and pump applications, the spider-shaped cushion reduces shock and compensates for minor shaft misalignment. Couplings allow zero backlash (no play).
A complete coupling consists of two hubs and one spider (each component sold separately). Hubs are lightweight, corrosion-resistant aluminum. Spiders are polyurethane for fair vibration damping and good chemical resistance.
For technical drawings and 3-D models, click on a part number.
High-Speed Servomotor Precision Flexible Shaft Couplings
Connect shafts and ball screws to high-speed servomotors and stepper motors—these shaft couplings handle four times more speed than standard servomotor couplings. They’re often found on high-torque motors that frequently start and stop, such as those used with packaging machines, press brakes, and semiconductor manufacturing equipment.
With aluminum hubs joined by a flexible fluoroelastomer or nitrile rubber core, these shaft couplings dampen vibration and adjust for misalignment. When machines accelerate and decelerate quickly, these couplings remain stiff to maintain accuracy and repeatability, which prevents equipment from moving out of place. They also resist backlash, meaning all of the turning force from the motor is passed on to the connected shaft. The core resists water, petroleum-based chemicals, and inorganic acids while also insulating bearings, encoders, and other shaft components from stray electric current. Clamping screws provide hold without marring shafts; they’re useful in applications where shafts are frequently assembled and disassembled.
For technical drawings and 3-D models, click on a part number.
Misalignment Capability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Overall Lg. | OD | Max. Speed, rpm | Max. Torque | Parallel | Angular | Axial | For Motion Type | Each | |
2017 Aluminum with Fluoroelastomer Rubber Center | ||||||||||
| 4mm × 4mm | 29/32" | 19/32" | 40,000 | 9 in.-lbs. | 0.006" | 1.5° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 000000 |
| 4mm × 5mm | 29/32" | 19/32" | 40,000 | 9 in.-lbs. | 0.006" | 1.5° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 00000 |
| 4mm × 6mm | 29/32" | 19/32" | 40,000 | 9 in.-lbs. | 0.006" | 1.5° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 00000 |
| 4mm × 8mm | 1 1/32" | 3/4" | 30,000 | 18 in.-lbs. | 0.006" | 1.5° | 0.008" | Forward/Reverse, Start/Stop | 00000000 | 00000 |
Set Screw Flexible Shaft Couplings
Each hub includes a set screw, which bites into your shaft to hold the coupling in place. Also known as Lovejoy couplings, these three-piece couplings have a spider-shaped cushion between two hubs to reduce shock and handle minor shaft misalignment.
A complete coupling consists of two hubs and one spider, or two hubs, one split spider, and one retaining ring (all components sold separately). Hubs for 1/2" shaft dia. and above (unless noted) and all metric sizes have a keyway.
Buna-N spiders provide good vibration damping and chemical resistance.
For technical drawings and 3-D models, click on a part number.