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	Trade Number Trade Number

6203-2RS

6203-2Z

6203

FZ 6203 2RS

	Width Width

12mm

17 mm

	Ball Bearing Type Ball Bearing Type


Standard	With Retaining Ring

	Seal Type Seal Type

Sealed

Shielded

Open

	Ring Material Ring Material

Steel

Stainless Steel

Plastic

	Ball Material Ball Material

Steel

Stainless Steel

Ceramic

	Radial Clearance Trade Number Radial Clearance Trade Number

	Maximum Speed Maximum Speed

Less than 10,000 rpm

10,000 to 11,999 rpm

12,000 to 17,999 rpm

18,000 rpm or greater

	Lubrication Lubrication

Lubricated

Not Required

Required

	ABEC Rating ABEC Rating

ABEC-1

ABEC-3

Not Rated

	Lubricant Lubricant

Grease

Oil

Solid Polymer

	Cage Material Cage Material

Steel

Stainless Steel

Plastic

	Dynamic Radial Load Capacity Dynamic Radial Load Capacity

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Static Radial Load Capacity Static Radial Load Capacity

	Maximum Radial Clearance Maximum Radial Clearance

	Minimum Radial Clearance Minimum Radial Clearance

	Shield Material Shield Material

Steel

Plastic

Stainless Steel

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17 Products

About Ball and Roller Bearings

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.

Bearings with retaining ring have a removable retaining ring that holds the bearing inside a housing.

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

Open

					Radial Load Cap., lbs.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating	Specifications Met		Each
6203	17mm	40mm	12mm	Steel	2,250	1,050	26,500	Lubricated	-20° to 230°	ABEC-1	DIN 625-1	00000000	00000

Shielded

					Radial Load Cap., lbs.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating	Specifications Met		Each
6203-2Z	17mm	40mm	12mm	Steel	2,100	1,050	18,000	Lubricated	-20° to 230°	ABEC-1	DIN 625-1	000000	00000

Shielded with Retaining Ring

Bearing with
Retaining
Ring

				Retaining Ring, mm			Radial Load Cap., lbs.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	OD	Thick.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
6203-2Z	17mm	40mm	12mm	44.6	1.12	Steel	2,200	1,050	19,000	Lubricated	-20° to 230°	ABEC-1	0000000	000000

Sealed

					Radial Load Cap., lbs.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating	Specifications Met		Each
6203-2RS	17mm	40mm	12mm	Steel	2,100	1,050	11,100	Lubricated	-20° to 230°	ABEC-1	DIN 625-1	0000000	00000

Sealed with Retaining Ring

Bearing with
Retaining
Ring

				Retaining Ring, mm			Radial Load Cap., lbs.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	OD	Thick.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
6203-2RS	17mm	40mm	12mm	44.6	1.12	Steel	2,200	1,050	12,000	Lubricated	-40° to 210°	ABEC-1	0000000	000000

Precision Ball Bearings

Shielded

Sealed

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.
Trade No.	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
6203-2Z	17	40	12	Steel	2,200	1,050	19,000	Lubricated	-30° to 240°	ABEC-3	0000000	000000
Sealed
6203-2RS	17	40	12	Steel	2,200	1,050	12,000	Lubricated	-30° to 240°	ABEC-3	00000000	00000

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.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
6203	17mm	40mm	12mm	Steel	1,800	980	10,500	Lubricated	10° to 200°	ABEC-1	00000000	000000
Sealed
6203-2RS	17mm	40mm	12mm	Steel	1,800	980	10,500	Lubricated	10° to 200°	ABEC-1	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. Shields keep out dust and contaminants.

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

					Radial Load Cap., lbs.
Trade No.	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
6203-2Z	17	40	12	Steel	2,100	920	25,500	Lubricated	-20° to 250°	ABEC-1	0000000	000000

One-Way Locking Ball Bearing Clutches

Shielded

Sealed

Internal locking elements (sprags) lock to transmit torque in one direction while turning freely in the other direction. Use them in applications where precision movement is required, such as pick-and-place and automated indexing conveyor systems. Shields keep out dust and contaminants.

Shielded bearings dissipate heat better than sealed bearings, but don’t keep out as much dust.

For dirty or dusty environments, sealed bearings are the best choice, since they block out contaminants better than shielded bearings.

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

					Radial Load Cap., lbs.
Trade No.	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Ring Material	Dynamic	Static	Max. Speed, rpm	Max. Torque, ft.-lbs.	Lubrication	Temp. Range, °F	ABEC Rating		Each
Shielded
6203-2Z	17	40	12	Steel	1,270	640	8,200	23	Lubricated	-40° to 170°	ABEC-1	0000000	0000000
Sealed
FZ 6203 2RS	17	40	17	Steel	1,270	640	7,300	23	Lubricated	-40° to 170°	ABEC-1	0000000	000000

Stainless Steel Ball Bearings

Bearings are 440C stainless steel for good corrosion resistance.

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.

Open

					Radial Load Cap., lbs.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
6203	17mm	40mm	12mm	440C Stainless Steel	1,450	980	17,000	Lubricated	-40° to 240°	ABEC-1	00000000	000000

Shielded

					Radial Load Cap., lbs.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
6203-2Z	17mm	40mm	12mm	440C Stainless Steel	1,450	980	17,000	Lubricated	-40° to 240°	ABEC-1	0000000	000000

Sealed

					Radial Load Cap., lbs.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
6203-2RS	17mm	40mm	12mm	440C Stainless Steel	1,800	980	17,000	Lubricated	-40° to 240°	ABEC-1	0000000	000000

Ultra-Corrosion-Resistant Stainless Steel Ball Bearings

These 316 stainless steel bearings are more corrosion resistant than our other stainless steel bearings, but they have a lower load capacity.

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

					Radial Load Cap., lbs.
Trade No.	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
6203	17mm	40mm	12mm	316 Stainless Steel	200	130	1,000	Required	-40° to 140°	Not Rated	0000000	000000

Plastic Ball Bearings

These acetal bearings have good all-around corrosion and chemical resistance.

316 stainless steel balls have excellent corrosion resistance.

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

					Radial Load Cap., lbs.						316 Stainless Steel Ball
Trade No.	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
6203	17mm	40mm	12mm	Acetal Plastic	65	45	1,000	Not Required	-40° to 180°	Not Rated	0000000	00000

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