24mm Wide Bearings | McMaster-Carr

					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	Misalignment Capability	Temp. Range, °F	ABEC Rating		Each
Open
1214	70	125	24	Steel	7,850	3,100	4,800	Required	4°	Not Rated	ABEC-1	00000000	0000000
2305	25	62	24	Steel	6,050	1,550	16,000	Lubricated	3°	-30° to 210°	ABEC-1	0000000	000000
Sealed
2305-2RS	25	62	24	Steel	4,250	1,200	7,500	Lubricated	1.5°	-30° to 210°	ABEC-1	0000000	000000

Tapered Bore Self-Aligning Ball Bearings

Tapered Shaft

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
2305K	25	62	24	Steel	5,550	1,450	9,500	Required	4°	240°	1:12	ABEC-1	0000000	0000000

Set Screw Collar Ball Bearings

Flanged

Slip these bearings onto a shaft and secure with the included set screws, no special tools required. All have an extended inner ring for additional shaft support.

Sealed bearings block out dust and other contaminants better than shielded bearings.

Flanged bearings have a flange that ensures proper positioning inside a tube or housing.

For technical drawings and 3-D models, click on a part number.

				Inner Ring		Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	OD	Wd.	Dynamic	Static	Max. Speed, rpm	Temp. Range, °F	ABEC Rating		Each
Sealed (Lubricated)
Steel—Flanged
GYAE55RRB	55mm	100mm	24mm	69.8mm	46.6mm	10,800	6,400	3,150	-65° to 250°	ABEC-1	0000000	0000000

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
ER207	35mm	72mm	24mm	47mm	43mm	78mm	1.6mm	5,750	3,450	4,650	Lubricated	-20° to 220°	ABEC-1	0000000	0000000

Needle-Roller Bearings

Also known as drawn-cup roller bearings, these are our thinnest roller bearings. The outer ring is drawn out to form a lip that holds the bearing together. Bearings take on the shape of their housing and may be oblong prior to installation.

Sealed bearings block out dust better than open bearings, but retain more heat.

For technical drawings and 3-D models, click on a part number.

				Radial Load Cap., lbs.
For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	For Shaft Surface Smoothness (Ra), microinch	Temp. Range, °F	Specifications Met		Each
Sealed—Both Sides
25mm	32mm	24mm	Steel	4,450	7,400	6,100	Lubricated	8	0° to 210°	DIN 618	00000000	000000
30mm	37mm	24mm	Steel	4,900	8,850	5,200	Lubricated	8	0° to 210°	DIN 618	00000000	00000
50mm	58mm	24mm	Steel	6,950	14,150	3,150	Lubricated	8	0° to 210°	DIN 618	00000000	00000

High-Load Linear Ball Bearings for Support Rail Shafts

Designed for heavy loads, these bearings have higher load capacities than comparable standard linear ball bearings for support rails. Use them for applications that require maximum rigidity. To install, slide bearings into a housing (not included) and secure in place with two retaining rings (sold individually).

Self-aligning bearings compensate for shaft misalignment.

Bearings with end seals keep lubricants in and dirt out.

Bearings with stainless steel balls are more corrosion resistant than bearings with steel balls.

Self Aligning with 0.5º Misalignment Capability–Metric

Bearings											External Retaining Rings
For Shaft Dia., mm	Overall Lg., mm	Wd., mm	For Housing ID, mm	Retaining Ring Groove End-to-End Lg., mm	With End Seals	Dynamic Load Capacity, lbs.	Max. Temperature, ° F	For Shaft Material		Each		Each
Acetal Plastic Bearings with Stainless Steel Balls
50	100	24	75.000 - 75.035	77.3	No	2,810	185°	Stainless Steel, Steel	0000000	0000000	0000000	00000
Acetal Plastic Bearings with Steel Balls
50	100	24	75.000 - 75.035	77.3	Yes	2,810	185°	Stainless Steel, Steel	0000000	000000	0000000	0000

Food Industry Linear Sleeve Bearings for Support Rail Shafts

These bearings for use in food applications also have excellent chemical and corrosion resistance. Mount them on a support rail shaft for applications requiring maximum rigidity. They have a fixed-alignment design for applications where shaft misalignment is unlikely. To install, slide bearings into a housing (not included) and secure in place with two retaining rings (sold individually).

For technical drawings and 3-D models, click on a part number.

Bearings												External Retaining Rings
For Shaft Dia.	Overall Lg.	Wd.	For Housing ID	Retaining Ring Groove End-to-End Lg.	Dynamic Load Capacity	Static Load Capacity, lbs.	Shaft Clearance	Temperature Range, ° F	For Shaft Material		Each		Each
Fixed Alignment
Rulon 641-Lined 304 Stainless Steel Bearings
50mm	100mm	24mm	75.0000mm - 75.0300mm	72mm	600 lbs. @ 100 fpm	7,750	0.05mm	-400° to 375°	Aluminum, Stainless Steel	0000000	0000000	0000000	00000

Bearing Retaining Locknuts

Carbon Steel

With a nylon insert that grips your threaded shaft or spindle without damaging the threads, these locknuts—sometimes called shaft nuts—keep bearings, bushings, gears, and pulleys in place. They won’t shake loose from vibration. However, their nylon insert also means you shouldn’t use these locknuts in applications with high temperatures. Their sides are slotted, so you can tighten and loosen them with a spanner wrench or spanner socket. To reduce the total size and weight of your assembly, they have chamfered edges.

All meet international standards for bearing locknut dimensions.

Carbon steel locknuts are strong and wear resistant. When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.

For technical drawings and 3-D models, click on a part number.

Metric

Locknuts
Thread							Carbon Steel		Spanner Sockets
Size	Pitch, mm	Spacing	OD	Wd., mm	Insert Max. Temp., °F	Specifications Met		Each		Each
Chamfered Face
M130	2	Extra Fine	165mm	24	160°	ISO 2982-2	00000000	0000000	00000000	000000000

Bearing Retaining Nuts

For Chamfered 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. Made of carbon steel, they’re strong and wear resistant.

Use stepped-face retaining nuts with DIN 462 spring lock washers. You can also use them in pairs or with other bearing retaining nuts as jam nuts. For the nut closer to the bearing, position the stepped face towards the bearing. All meet DIN standards for bearing lockout dimensions.

Chamfered-face retaining nuts weigh less and produce less heat than stepped-face nuts. They 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.

For technical drawings and 3-D models, click on a part number.

Nuts
Thread									Optional Washers
Size	Pitch, mm	Spacing	OD, mm	Wd., mm	Specifications Met	For Lock Washer Specifications Met		Each		Each
Carbon Steel
Chamfered Face
M145	2	Extra Fine	190	24	DIN 981, ISO 2982	DIN 5406	0000000	0000000	000000000	0000000
M150	2	Extra Fine	195	24	DIN 981, ISO 2982	DIN 5406	0000000	000000	000000000	00000