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.
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About Ball and Roller Bearings
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Ball Bearings
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
Sealed bearings block out dust and other contaminants better than open and shielded bearings, but retain the most heat.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
6209 | 45mm | 85mm | 19mm | Steel | 6,200 | 4,150 | 7,700 | Lubricated | -20° to 230° | ABEC-1 | 00000000 | 000000 |
Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Specifications Met | Each | |
6209-2Z | 45mm | 85mm | 19mm | Steel | 6,950 | 4,500 | 8,000 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 000000 |
Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Specifications Met | Each | |
6209-2RS | 45mm | 85mm | 19mm | Steel | 6,950 | 4,500 | 4,600 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 0000000 | 000000 |
Permanently Lubricated Ball Bearings
A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. Because it's solid, the lubricant blocks out water and dust, extending the life of the bearing.
Sealed bearings have even better resistance to dust and contaminants than open bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
6209 | 45mm | 85mm | 19mm | Steel | 5,650 | 4,150 | 4,600 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 000000 |
Sealed | ||||||||||||
6209-2RS | 45mm | 85mm | 19mm | Steel | 5,650 | 4,150 | 4,600 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 00000 |
Precision Ball Bearings
For greater accuracy and higher speeds, these bearings are made to tighter tolerances than standard ball bearings.
Shielded bearings dissipate heat more efficiently than sealed bearings.
Sealed bearings block out dust and other contaminants better than shielded bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Shielded | ||||||||||||
6209-2Z | 45 | 85 | 19 | Steel | 7,850 | 4,850 | 8,500 | Lubricated | -20° to 230° | ABEC-3 | 0000000 | 000000 |
Sealed | ||||||||||||
6209-2RS | 45 | 85 | 19 | Steel | 7,850 | 4,850 | 5,000 | Lubricated | -30° to 210° | ABEC-3 | 00000000 | 00000 |
Electrically Insulated Ball Bearings
Good for use in electric motors and power generators, these bearings have ceramic balls that insulate against stray current to prevent damage to the bearing. The ceramic balls generate less heat than steel balls, so they require lubrication less frequently.
Shielded bearings block out dust and other contaminants.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Shielded | ||||||||||||
6209-2Z | 45 | 85 | 19 | Steel | 8,400 | 5,700 | 11,800 | Lubricated | -20° to 245° | ABEC-1 | 0000000 | 0000000 |
Tapered Bore Self-Aligning Ball Bearings
For use on tapered shafts and round shafts with adapter sleeves, these ball-bearings have a spherical raceway to compensate for shaft misalignment.
For technical drawings and 3-D models, click on a part number.
Radial Load Capacity | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Diameter, mm | For Housing ID, mm | Width, mm | Ring Material | Dynamic | Static, lbs. | Maximum Speed, rpm | Lubrication | Misalignment Capability | Maximum Temperature, °F | Rate of Taper | ABEC Rating | Each | |
Open | ||||||||||||||
2209K | 45 | 85 | 23 | Steel | 5,200 | 1,800 | 7,100 | Required | 4° | 240° | 1:12 | ABEC-1 | 0000000 | 0000000 |
Square-Bore Ball Bearings
Mount these bearings onto a square shaft. They have an extended inner ring for additional shaft support. Since they’re sealed, they block out dust and contaminants better than open and shielded bearings.
For technical drawings and 3-D models, click on a part number.
Inner Ring | Radial Load Cap., lbs. | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Wd., mm | Square Wd., mm | For Housing ID, mm | Wd., mm | OD, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Sealed | |||||||||||||||
GW209PP8 | 32.5 | 32.512 | 85 | 22 | 57.1 | 36.5 | Steel | 7,300 | 4,600 | 500 | Lubricated | -20° to 200° | ABEC-1 | 0000000 | 000000 |
Stainless Steel Ball Bearings
Bearings are 440C stainless steel for good corrosion resistance.
Sealed bearings block out dust and other contaminants better than open and shielded bearings, but retain the most heat.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
6209-2RS | 45mm | 85mm | 19mm | 440C Stainless Steel | 7,300 | 4,600 | 5,000 | Lubricated | -20° to 210° | ABEC-1 | 00000000 | 0000000 |
Permanently Lubricated Stainless Steel Ball Bearings
A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. The solid lubricant blocks out water and dust, extending the life of the bearing.
Sealed bearings have even better resistance to dust and contaminants than open bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
6209 | 45 | 85 | 19 | 440C Stainless Steel | 5,650 | 4,150 | 4,000 | Lubricated | -10° to 200° | ABEC-1 | 00000000 | 0000000 |
Sealed | ||||||||||||
6209-2RS | 45 | 85 | 19 | 440C Stainless Steel | 5,650 | 4,150 | 4,000 | Lubricated | -10° to 200° | ABEC-1 | 00000000 | 000000 |
Clamp-On Collar Ball Bearings
Quickly secure these bearings onto shafts with the clamp-on collar for a concentric, mar-free hold. Tighten the single screw on the locking collar around its inner ring on your shaft to center and secure the shaft in the bearing bore. The collar’s firm grip reduces vibration and noise in your system. The steel rings on these bearings have a black-oxide finish for some corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Inner Ring | Retaining Ring | Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | OD | Wd. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Shielded | |||||||||||||||
Black-Oxide Steel Ring | |||||||||||||||
ER209 | 45mm | 85mm | 28mm | 58mm | 49mm | 91mm | 1.6mm | 7,900 | 5,100 | 3,800 | Lubricated | -20° to 220° | ABEC-1 | 0000000 | 0000000 |
Ultra-Thin Ball Bearings
These bearings have twice as many contact points as angular-contact ball bearings. Fit onto large-diameter hollow shafts to run air and hydraulic lines, electrical wiring, and other components through moving parts in assemblies such as index and rotary tables, packaging equipment, and robotics.
Open bearings dissipate heat more efficiently than shielded bearings.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | Thrust Load Cap., lbs. | Moment Load Cap., ft.-lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Housing ID | Wd. | Dynamic | Static | Dynamic | Static | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Steel Ring | ||||||||||||||
Open | ||||||||||||||
60mm | 85mm | 13mm | 4,500 | 3,850 | Not Rated | Not Rated | Not Rated | Not Rated | 8,900 | Lubricated | -50° to 130° | ABEC-1 | 00000000 | 000000 |
65mm | 85mm | 10mm | 2,650 | 2,550 | Not Rated | Not Rated | Not Rated | Not Rated | 8,600 | Lubricated | -50° to 130° | ABEC-1 | 00000000 | 00000 |
Shielded | ||||||||||||||
60mm | 85mm | 13mm | 4,500 | 3,850 | Not Rated | Not Rated | Not Rated | Not Rated | 7,500 | Lubricated | -40° to 150° | ABEC-1 | 00000000 | 00000 |
65mm | 85mm | 10mm | 2,650 | 2,550 | Not Rated | Not Rated | Not Rated | Not Rated | 7,300 | Lubricated | -40° to 150° | ABEC-1 | 00000000 | 00000 |
Angular-Contact Thrust Ball Bearings
Single-row bearings handle thrust loads on one side. For applications with thrust loads on both sides, mount them in pairs.
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
For technical drawings and 3-D models, click on a part number.
Combined Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Contact Angle | Temp. Range, °F | ABEC Rating | Each | |
Single Row | |||||||||||||
Open | |||||||||||||
7209 | 45 | 85 | 19 | Steel | 8,000 | 5,800 | 9,000 | Required | 40° | -20° to 230° | ABEC-3 | 0000000 | 0000000 |
High-Speed Angular-Contact Thrust Ball Bearings
An ABEC-7 rating means these bearings are made to some of the tightest tolerances, so they operate at the highest speeds.
Open bearings dissipate heat more efficiently than sealed bearings.
For technical drawings and 3-D models, click on a part number.
Combined Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Contact Angle | Temp. Range, °F | ABEC Rating | Each | |
Single Row | |||||||||||||
Open | |||||||||||||
7209 | 45 | 85 | 19 | Steel | 9,650 | 6,450 | 17,700 | Required | 15° | -40° to 245° | ABEC-7 | 0000000 | 0000000 |
Thrust Ball Bearings
Steel balls and washers allow these bearings to handle higher loads than bearings with stainless steel components. With an open design, they dissipate heat more efficiently than one-piece thrust ball bearings.
Bearings with steel cage and with bronze cage handle higher loads and speeds than bearings with a plastic cage.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Thick. | Cage Material | Washer Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Includes | Each | |
Open | ||||||||||||
60mm | 85mm | 17mm | Steel | Steel | 9,300 | 25,400 | 3,700 | Required | -40° to 250° | Two Washers | 00000000 | 000000 |
Spherical-Roller Bearings
Two rows of rollers give these bearings dynamic radial load capacities over five times higher than comparably sized tapered-roller bearings. Also known as rock crusher bearings, they handle heavy shock loads and are used for metal milling machinery, mining and oil field equipment, and in paper mills.
For technical drawings and 3-D models, click on a part number.
Combined Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Bearing Trade Number | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Max. Temp. Range, °F | Each | |
Open | |||||||||||
45 | 85 | 23 | 22209 | Steel | 26,500 | 24,900 | 6,000 | Required | 390 | 000000 | 0000000 |
Cylindrical Roller Bearings
With cylindrical rollers to distribute load over a large surface area, these bearings are often used to support heavy loads at high speeds in applications such as power generation and metal recycling. A cage prevents the rollers from touching each other, reducing friction for high-speed use. All of these bearings have an inner ring that's flanged on one side, so they only allow heat expansion in one direction. The bearings can be taken apart, so you can install them with precision and quickly dismantle them for maintenance or replacement.
For technical drawings and 3-D models, click on a part number.
Radial Load Capacity, lbs. | Thrust Load Capacity, lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Diameter, mm | For Housing ID, mm | Width, mm | Ring Material | Dynamic | Static | Dynamic | Static | Maximum Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microns | Temperature Range, °F | Specifications Met | Each | |
For Combined Radial and Thrust Loads | ||||||||||||||
Open | ||||||||||||||
45 | 85 | 19 | Steel | 16,150 | 14,150 | Not Rated | Not Rated | 10,200 | Required | 0.8 | -20° to 245° | DIN 5412-1 | 00000000 | 0000000 |
Needle-Roller Thrust Bearings
Thinner rollers allow these bearings to fit in tighter spaces than tapered-roller thrust bearings. Because of the large contact area between the rollers and washers (not included), these bearings are great for medium to heavy duty, low-friction jobs. For use on hardened and ground surfaces.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microns | Temp. Range, °F | Specifications Met | Each | |
Steel Rollers | |||||||||||
Open | |||||||||||
60mm | 85mm | 3mm | 10,000 | 53,000 | 4,000 | Required | 0.2 | 0° to 240° | DIN 5405-2 | 000000 | 000000 |
Washers for Needle-Roller Thrust Bearings
Cylindrical-Roller Thrust Bearings
Cylindrical-roller thrust bearings handle higher loads than needle-roller thrust bearings. They also run at faster speeds than tapered-roller thrust bearings.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia., mm | OD, mm | Thick., mm | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Includes | Each | |
Steel Rollers | ||||||||||
Open | ||||||||||
60 | 85 | 17 | 23,150 | 70,800 | 3,950 | Required | -25° to 245° | Two Washers | 0000000 | 0000000 |
Metric Press-Fit Drill Bushings
Also known as jig bushings, these metric drill bushings fit inside fixture plate holes to guide drill bits, counterbores, reamers, and other cutting tools. They improve accuracy so that your drilled holes and cuts are consistent from part to part. Known for their versatility, drill bushings are also used as spacers, shims, and machinery bushings. These bushings are made of hardened, ground steel that holds its shape and resists wear, so they last for many cycles without needing to be replaced.
All bushings have a chamfer on the outside that centers the bushing as you place it into the hole. Press into place with a manual or hydraulic press. They also have internal chamfers, so it's easier to insert bits, pins, and punches into the bushing. Don't see the size you need? Additional sizes are available.
For technical drawings and 3-D models, click on a part number.
Tolerance | Each | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OD, mm | Lg., mm | Internal Chamfer | For Drill Bit Size | ID, mm | OD, mm | Lg., mm | Drill Bushing Type | Material | Hardness | 1-5 | 6-11 | 12-Up | |
70 mm ID | |||||||||||||
85 | 35 | One End | 70 mm | 0.01 to 0.029 | 0.071 to 0.093 | -0.01 to 0.254 | PM | Steel | Rockwell C61 | 000000000 | 000000 | 000000 | 000000 |
Bearing Retaining Locknuts
With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions.
When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
All carbon steel locknuts are strong and resist wear, though they don’t stand up to corrosion as well as stainless steel locknuts. Zinc-plated steel locknuts resist rusting from some moisture, but you shouldn’t use them with salt water or chemicals.
303 stainless steel locknuts resist corrosion better than steel locknuts but aren’t as strong. They withstand washdowns and chemicals.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Spacing | OD | Wd., mm | Insert Max. Temp., °F | Specifications Met | Each | |
Carbon Steel | ||||||||
Chamfered Face | ||||||||
M65 | 2 | Extra Fine | 85mm | 15 | 160° | ISO 2982-2 | 00000000 | 000000 |
Zinc-Plated Carbon Steel | ||||||||
Chamfered Face | ||||||||
M65 | 2 | Extra Fine | 85mm | 14.5 | 210° | __ | 0000000 | 000000 |
303 Stainless Steel | ||||||||
Chamfered Face | ||||||||
M65 | 2 | Extra Fine | 85mm | 15 | 160° | ISO 2982-2 | 00000000 | 00000 |
Bearing Retaining Nuts
Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket.
Chamfered-face retaining nuts weigh less and produce less heat than stepped-face nuts. Some meet ISO 2982 (formerly DIN 981), an international standard for bearing locknut dimensions. Their sizes correspond to SKF KM series. Use them with DIN 5406 spring lock washers.
Carbon steel retaining nuts are strong and resist wear.
For technical drawings and 3-D models, click on a part number.
Flush-Mount Screw-Clamp Bushings
Insert these bushings into the bore of your sprocket for flush or recessed mounting. They handle shock loads. When you tighten the included clamping screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.
For technical drawings and 3-D models, click on a part number.
For Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
55mm | 85mm | 66mm | 45,100 | 363 | Steel | Clamping Screws | 0000000 | 0000000 |