Fast-Travel Ball Screws and Nuts

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Number of Thread Starts

Thread Size

Component

System of Measurement

Nut Type

Travel Distance per Turn

Diameter

Thread Direction

Root Diameter

Dynamic Thrust Load Capacity

Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 9,999 lb.

10,000 lb. to 19,999 lb.

20,000 lb. or greater

Threading

Fully Threaded

Partially Threaded

Material

17-4 PH Stainless Steel

Thread Type

Number of Mounting Holes

Hardness

Rockwell C38

Rockwell C56

Rockwell C60

Tensile Strength

50,000 psi to 79,999 psi

80,000 psi to 99,999 psi

100,000 psi to 129,999 psi

130,000 psi or greater

DFARS Specialty Metals

Bolt Circle Diameter

Maximum Temperature

REACH

Export Control Classification Number (ECCN)

RoHS

Maximum Backlash

Minimum Temperature

Flange Diameter

93 Products

Selecting Compatible Lead Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. To ensure compatibility, select components that have the same thread size and number of thread starts. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Carbon steel ball screws and nuts are case hardened, so they resist wear better than standard carbon steel. However, they are less corrosion resistant than black-oxide alloy steel screws and nuts.

Black-oxide alloy steel ball nuts have mild corrosion resistance.

Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.

Ball Screws—Right-Hand Threaded

Root diameter indicates the diameter the ball screw will be after machining away the threads.

Carbon Steel
Thread Size	Lg.	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Root Dia.	Hardness	Tensile Strength, psi	Temperature Range, °F		Each
M12	500mm	2	10mm	±0.05 mm per 300 mm	9.6mm	Rockwell C56	95,000	32° to 150°	00000000	0000000
M12	1,000mm	2	10mm	±0.05 mm per 300 mm	9.6mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M15	500mm	4	16mm	±0.05 mm per 300 mm	12.9mm	Rockwell C56	95,000	32° to 150°	00000000	00000
M15	500mm	4	20mm	±0.05 mm per 300 mm	12.3mm	Rockwell C56	95,000	32° to 150°	00000000	00000
M15	1,000mm	4	16mm	±0.05 mm per 300 mm	12.9mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M15	1,000mm	4	20mm	±0.05 mm per 300 mm	12.3mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M16	500mm	4	16mm	±0.05 mm per 300 mm	13.3mm	Rockwell C56	95,000	32° to 150°	00000000	00000
M16	1,000mm	4	16mm	±0.05 mm per 300 mm	13.3mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M20	500mm	4	20mm	±0.05 mm per 300 mm	17mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M20	1,000mm	4	20mm	±0.05 mm per 300 mm	17mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M32	500mm	2	20mm	±0.05 mm per 300 mm	28.5mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M32	500mm	4	32mm	±0.05 mm per 300 mm	28.3mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M32	1,000mm	2	20mm	±0.05 mm per 300 mm	28.5mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M32	1,000mm	4	32mm	±0.05 mm per 300 mm	28.3mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M40	500mm	4	40mm	±0.05 mm per 300 mm	35.4mm	Rockwell C56	95,000	32° to 150°	00000000	000000
M40	1,000mm	4	40mm	±0.05 mm per 300 mm	35.4mm	Rockwell C56	95,000	32° to 150°	00000000	000000
Alloy Steel
1/2"-4	1ft.	2	0.5"	±0.007" per ft.	0.4"	Rockwell C56	58,000	-65° to 300°	00000000	00000
1/2"-4	2ft.	2	0.5"	±0.007" per ft.	0.4"	Rockwell C56	58,000	-65° to 300°	00000000	000000
3/4"-4	1ft.	2	0.5"	±0.007" per ft.	0.63"	Rockwell C56	92,500	-65° to 300°	00000000	00000
3/4"-4	2ft.	2	0.5"	±0.007" per ft.	0.63"	Rockwell C56	92,500	-65° to 300°	00000000	00000
3/4"-4	3ft.	2	0.5"	±0.007" per ft.	0.63"	Rockwell C56	92,500	-65° to 300°	00000000	000000
3/4"-4	4ft.	2	0.5"	±0.007" per ft.	0.63"	Rockwell C56	92,500	-65° to 300°	00000000	000000
3/4"-4	5ft.	2	0.5"	±0.007" per ft.	0.63"	Rockwell C56	92,500	-65° to 300°	00000000	000000
3/4"-4	6ft.	2	0.5"	±0.007" per ft.	0.63"	Rockwell C56	92,500	-65° to 300°	00000000	000000
1"-4	2ft.	2	0.5"	±0.007" per ft.	0.87"	Rockwell C56	126,500	-65° to 300°	00000000	000000
1"-4	2ft.	4	1"	±0.007" per ft.	0.84"	Rockwell C56	123,000	-65° to 300°	00000000	000000
1"-4	3ft.	2	0.5"	±0.007" per ft.	0.87"	Rockwell C56	126,500	-65° to 300°	00000000	000000
1"-4	3ft.	4	1"	±0.007" per ft.	0.84"	Rockwell C56	123,000	-65° to 300°	00000000	000000
1"-4	4ft.	2	0.5"	±0.007" per ft.	0.87"	Rockwell C56	126,500	-65° to 300°	00000000	000000
1"-4	4ft.	4	1"	±0.007" per ft.	0.84"	Rockwell C56	123,000	-65° to 300°	00000000	000000
1"-4	5ft.	2	0.5"	±0.007" per ft.	0.87"	Rockwell C56	126,500	-65° to 300°	00000000	000000
1"-4	5ft.	4	1"	±0.007" per ft.	0.84"	Rockwell C56	123,000	-65° to 300°	00000000	000000
1"-4	6ft.	2	0.5"	±0.007" per ft.	0.87"	Rockwell C56	126,500	-65° to 300°	00000000	000000
1"-4	6ft.	4	1"	±0.007" per ft.	0.84"	Rockwell C56	123,000	-65° to 300°	00000000	000000
1"-4	7ft.	2	0.5"	±0.007" per ft.	0.87"	Rockwell C56	126,500	-65° to 300°	00000000	000000
1"-4	7ft.	4	1"	±0.007" per ft.	0.84"	Rockwell C56	123,000	-65° to 300°	00000000	000000
1"-4	8ft.	2	0.5"	±0.007" per ft.	0.87"	Rockwell C56	126,500	-65° to 300°	00000000	000000
1"-4	8ft.	4	1"	±0.007" per ft.	0.84"	Rockwell C56	123,000	-65° to 300°	00000000	000000
1 1/2"-2	2ft.	2	1"	±0.007" per ft.	1.14"	Rockwell C56	166,000	-65° to 300°	00000000	000000
1 1/2"-2	3ft.	2	1"	±0.007" per ft.	1.14"	Rockwell C56	166,000	-65° to 300°	00000000	000000
1 1/2"-2	4ft.	2	1"	±0.007" per ft.	1.14"	Rockwell C56	166,000	-65° to 300°	00000000	000000
1 1/2"-2	5ft.	2	1"	±0.007" per ft.	1.14"	Rockwell C56	166,000	-65° to 300°	00000000	000000
1 1/2"-2	6ft.	2	1"	±0.007" per ft.	1.14"	Rockwell C56	166,000	-65° to 300°	00000000	000000
1 1/2"-2	7ft.	2	1"	±0.007" per ft.	1.14"	Rockwell C56	166,000	-65° to 300°	00000000	000000
1 1/2"-2	8ft.	2	1"	±0.007" per ft.	1.14"	Rockwell C56	166,000	-65° to 300°	00000000	000000

Externally Threaded Ball Nuts—Right-Hand Threaded

Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.

Ball Nuts															Way Wipers
	Thread Size	Lg.	Wd.	Ht.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash	Temperature Range, °F		Each		Each
Carbon Steel
B	M16	50mm	__	__	39mm	4	16mm	M30	Rockwell C56	1,500	0.04mm	32° to 150°	00000000	0000000	000000	00
C	M32	90mm	__	__	53mm	4	32mm	M50	Rockwell C56	3,700	0.03mm	32° to 150°	00000000	000000	000000	00
Black-Oxide Alloy Steel
C	1/2"-4	1 3/4"	__	__	1 1/16"	2	0.5"	15/16"-16	Rockwell C56	850	0.015"	-65° to 300°	00000000	00000	000000	00
C	3/4"-4	2 15/16"	__	__	1 5/16"	2	0.5"	1 1/4"-16	Rockwell C56	3,400	0.015"	-65° to 300°	00000000	000000	000000	00
C	1"-4	3 1/8"	__	__	1 11/16"	2	0.5"	1 9/16"-18	Rockwell C56	4,250	0.015"	-65° to 300°	00000000	000000	000000	00
C	1 1/2"-2	3 3/4"	2 1/4"	2 1/4"	2 5/8"	2	1"	2 1/4"-20	Rockwell C56	8,000	0.015"	-65° to 300°	00000000	000000	0000000	0000000
D	1"-4	3"	1 1/2"	1 1/2"	__	4	1"	1 9/16"-18	Rockwell C56	2,300	0.015"	-65° to 300°	00000000	000000	000000	00

Flange Ball Nuts—Right-Hand Threaded

Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.

Ball Nuts
						Flange											Way Wipers
	Thread Size	Lg.	Wd.	Ht.	Dia.	Dia.	Thick.	No. of Thread Starts	Travel Distance per Turn	Bolt Circle Dia.	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash	Temperature Range, °F		Each		Each
Carbon Steel
E	M12	43mm	__	__	23mm	40mm	10mm	2	10mm	32mm	Rockwell C56	1,100	0.02mm	32° to 150°	00000000	0000000	000000	00
E	M15	56mm	__	__	33mm	57mm	10mm	4	20mm	45mm	Rockwell C56	2,250	0.04mm	32° to 150°	00000000	000000	000000	00
E	M15	61mm	__	__	27mm	48mm	10mm	4	16mm	38mm	Rockwell C56	2,200	0.04mm	32° to 150°	00000000	000000	000000	00
E	M20	77mm	__	__	35mm	58mm	10mm	4	20mm	47mm	Rockwell C56	2,750	0.04mm	32° to 150°	00000000	000000	000000	00
E	M32	88mm	__	__	53mm	86mm	14mm	4	32mm	71mm	Rockwell C56	5,800	0.05mm	32° to 150°	00000000	000000	000000	00
E	M32	108mm	__	__	49mm	80mm	16mm	2	20mm	65mm	Rockwell C56	4,900	0.04mm	32° to 150°	00000000	000000	000000	00
E	M40	101mm	__	__	66mm	106mm	18mm	4	40mm	85mm	Rockwell C56	9,550	0.07mm	32° to 150°	00000000	000000	000000	00
Black-Oxide Alloy Steel
F	1/2"-4	1 29/32"	__	__	1 1/16"	2 19/32"	17/32"	2	0.5"	2 3/32"	Rockwell C56	850	0.015"	-65° to 300°	00000000	000000	000000	00
F	3/4"-4	2 31/32"	__	__	1 5/16"	2 5/8"	17/32"	2	0.5"	2 3/32"	Rockwell C56	3,400	0.015"	-65° to 300°	00000000	000000	000000	00
F	1"-4	3 1/8"	__	__	1 11/16"	2 15/64"	5/8"	2	0.5"	2 3/4"	Rockwell C56	4,250	0.015"	-65° to 300°	00000000	000000	000000	00
G	1"-4	3 1/32"	1 1/2"	1 1/2"	__	2 15/64"	5/8"	4	1"	2 3/4"	Rockwell C56	2,300	0.015"	-65° to 300°	00000000	000000	000000	00
G	1 1/2"-2	3 49/64"	2 1/4"	2 1/4"	__	4 15/16"	1 1/64"	2	1"	4 1/8"	Rockwell C56	8,000	0.015"	-65° to 300°	00000000	000000	0000000	0000000

Self-Stopping Ball Screws and Nuts

Stop Pin Shown Installed

Keep your ball screw spinning without the ball nut damaging your system—a clutch-like collar inside the ball nut prevents it from travelling past the stop pins. Install the included stop pins anywhere along the length of the ball screw by drilling a hole in the valley of the threads (also known as the root) and pressing in the stop pin. When the collar meets the stop pin, the ball nut disengages from the threads and begins to idle. To start the ball nut travelling again, spin the ball screw in the opposite direction. All components are black-oxide steel and have mild corrosion resistance. To ensure compatibility, select components that have the same thread size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.

Ball Screws—Right-Hand Threaded

Root diameter indicates the diameter the ball screw will be after machining away the threads.

Black-Oxide Alloy Steel
Thread Size	Lg., ft.	No. of Thread Starts	Travel Distance per Turn	Root Dia.	Hardness	Tensile Strength, psi	Temperature Range, °F	No. of Pins Included		Each
5/8"-6	1	2	0.188"	0.562"	Rockwell C56	95,000	-65° to 300°	2	0000000	0000000
5/8"-6	2	2	0.188"	0.562"	Rockwell C56	95,000	-65° to 300°	2	0000000	000000
5/8"-6	3	2	0.188"	0.562"	Rockwell C56	95,000	-65° to 300°	2	0000000	000000
1"-4	2	2	0.274"	0.84"	Rockwell C56	95,000	-65° to 300°	2	0000000	000000
1"-4	3	2	0.274"	0.84"	Rockwell C56	95,000	-65° to 300°	2	0000000	000000
1"-4	4	2	0.274"	0.84"	Rockwell C56	95,000	-65° to 300°	2	0000000	000000

Externally Threaded Ball Nuts—Right-Hand Threaded

Black-Oxide Alloy Steel
Thread Size	Lg.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash	Temperature Range, °F		Each
5/8"-6	1 7/8"	1"	2	0.188"	15/16"-16	Rockwell C56	300	0.006"	-65° to 300°	0000000	0000000
1"-4	2 23/32"	1 5/8"	2	0.274"	1.563"-18	Rockwell C56	900	0.008"	-65° to 300°	0000000	000000

Flange Ball Nuts—Right-Hand Threaded

			Flange
Thread Size	Lg.	Dia.	Dia.	Thick.	No. of Thread Starts	Travel Distance per Turn	Bolt Circle Dia.	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash	Temperature Range, °F		Each
Black-Oxide Alloy Steel
5/8"-6	1 7/8"	1"	2"	13/32"	2	0.188"	1 5/8"	Rockwell C56	300	0.006"	-65° to 300°	0000000	0000000
1"-4	2 23/32"	1 5/8"	3 15/64"	5/8"	2	0.274"	2 3/4"	Rockwell C56	900	0.008"	-65° to 300°	0000000	000000

Fast-Travel Corrosion-Resistant Ball Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start. Suitable for use in harsh environments, these ball screws and nuts are made of stainless steel. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. To ensure compatibility, select components that have the same thread size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.

Ball Screws—Right-Hand Threaded

Root diameter indicates the diameter the ball screw will be after machining away the threads.

17-4 PH Stainless Steel
Thread Size	Lg., ft.	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Root Dia.	Hardness	Tensile Strength, psi	Temperature Range, °F		Each
1/2"-4	1	2	0.5"	±0.005" per ft.	0.4"	Rockwell C38	150,000	-65° to 300°	0000000	0000000
1/2"-4	2	2	0.5"	±0.004" per ft.	0.4"	Rockwell C38	145,000	-65° to 300°	000000	000000
1/2"-4	4	2	0.5"	±0.004" per ft.	0.4"	Rockwell C38	145,000	-65° to 300°	000000	000000
1/2"-4	6	2	0.5"	±0.004" per ft.	0.4"	Rockwell C38	145,000	-65° to 300°	000000	000000
3/4"-4	3	2	0.5"	±0.005" per ft.	0.63"	Rockwell C38	150,000	-65° to 300°	0000000	000000
3/4"-4	6	2	0.5"	±0.005" per ft.	0.63"	Rockwell C38	150,000	-65° to 300°	0000000	000000

Externally Threaded Ball Nut—Right-Hand Threaded

17-4 PH Stainless Steel
Thread Size	Lg.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash	Temperature Range, °F		Each
1/2"-4	1 3/4"	1 1/16"	2	0.5"	15/16"-16	Rockwell C38	140	0.007"	-65° to 300°	0000000	0000000
3/4"-4	2 15/16"	1 5/16"	2	0.5"	1 1/4"-16	Rockwell C38	600	0.007"	-65° to 300°	0000000	000000

Flange Ball Nuts—Right-Hand Threaded

			Flange
Thread Size	Lg.	Dia.	Dia.	Thick.	No. of Thread Starts	Travel Distance per Turn	Bolt Circle Dia.	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash	Temperature Range, °F		Each
17-4 PH Stainless Steel
1/2"-4	1 29/32"	1 1/16"	2 19/32"	17/32"	2	0.5"	2 3/32"	Rockwell C38	140	0.007"	-65° to 300°	0000000	0000000
3/4"-4	2 15/16"	1 5/16"	2 19/32"	17/32"	2	0.5"	2 3/32"	Rockwell C38	600	0.007"	-65° to 300°	0000000	000000

Roller Screws and Nuts

Precision ground to create more points of contact, these roller screws and nuts are highly accurate and handle much higher loads than ball screws and nuts of the same size. They're most traditionally used to replace hydraulics in linear actuators but can also be used in place of ball and lead screw assemblies because of their high load capacity and precise motion control. In fact, they're almost four times more accurate than our most accurate ball and lead screws. They also last longer than ball screw nuts in systems with lower loads and can handle higher shock loads. However, because they have more contact points, they’re slightly less efficient than ball screws. To ensure compatibility, select components that have the same thread direction and size.

Roller screws are made of hardened steel for strength and durability.

Travel distance per turn, also known as screw lead, is the distance a roller nut moves with one revolution of the roller screw.

Roller Screws—Right-Hand Partially Threaded

Alloy Steel
Thread Size	Lg., mm	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Min. Thread Lg., mm	Root Dia., mm	Hardness	Tensile Strength, psi		Each
M15	642	5	4	±0.023 mm per 300 mm	522	14.59	Rockwell C60	105,000	0000000	000000000
M15	642	5	5	±0.023 mm per 300 mm	522	14.44	Rockwell C60	105,000	0000000	00000000
M20	680	5	4	±0.023 mm per 300 mm	561	19.15	Rockwell C60	105,000	0000000	00000000
M20	680	5	5	±0.023 mm per 300 mm	561	19.05	Rockwell C60	105,000	0000000	00000000

Round Nuts—Right-Hand Threaded

					Keyway
Thread Size	Lg., mm	Dia., mm	No. of Thread Starts	Travel Distance per Turn, mm	Wd., mm	Dp., mm	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash, mm	Temp. Range, °F	Lubrication		Each
Alloy Steel
M15	45	35	5	4	4	14	Rockwell C60	9,230	0.03	-40° to 350°	Required	0000000	000000000
M15	45	35	5	5	4	14	Rockwell C60	12,000	0.03	-40° to 350°	Required	0000000	00000000
M20	65	42	5	4	4	18	Rockwell C60	15,100	0.03	-40° to 350°	Required	0000000	00000000
M20	65	42	5	5	4	18	Rockwell C60	20,600	0.03	-40° to 350°	Required	0000000	00000000