Metric Ball Threaded Rods

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	System of Measurement System of Measurement

Metric

	Thread Size Thread Size

	Thread Type Thread Type	Show

Metric Ball

	Thread Type Thread Type	Hide

Metric Rounded
Trapezoidal

	Length Length

	Diameter Diameter

	Component Component

	Ball Nut
	Ball Screw

	Travel Distance per Turn Travel Distance per Turn

	Nut Type Nut Type


Flange	Platform

	Threading Threading

	Fully Threaded

	Material Material

Alloy Steel

Carbon Steel

	Root Diameter Root Diameter

	Thread Direction Thread Direction

	Right Hand

	Number of Thread Starts Number of Thread Starts

	Hardness Hardness

Rockwell C58

	Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity

	Number of Mounting Holes Number of Mounting Holes

	Minimum Temperature Minimum Temperature

5° F

	Maximum Temperature Maximum Temperature

150° to 199° F

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Backlash Maximum Backlash

0.05 mm

0.1 mm

	Center Height Center Height

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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30 Products

Selecting Compatible Lead Screws and Nuts

Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, these have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread size and travel distance per turn. 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.

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

Ball Screws with Flange Ball Nut—Right-Hand Threaded

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

	Ball Screw			Flange Ball Nut
Thread Size	Lg., mm	Root Dia., mm	Tensile Strength, psi	Lg., mm	Dia., mm	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash, mm	Temperature Range, °F		Each
Carbon Steel Ball Screw with Alloy Steel Flange Ball Nut
M6	150	5.3	21,000	21	13	1	1	±0.210 mm per 300 mm	Rockwell C58	150	0.05	5° to 175°	0000000	0000000
M6	250	5.3	21,000	21	13	1	1	±0.210 mm per 300 mm	Rockwell C58	150	0.05	5° to 175°	000000	000000
M8	150	6.6	21,000	28	20	1	2	±0.210 mm per 300 mm	Rockwell C58	470	0.05	5° to 175°	0000000	000000
M8	250	6.6	21,000	28	20	1	2	±0.210 mm per 300 mm	Rockwell C58	470	0.05	5° to 175°	000000	000000
M10	200	8.6	21,000	28	23	1	2	±0.210 mm per 300 mm	Rockwell C58	510	0.05	5° to 175°	0000000	000000
M10	300	8.6	21,000	28	23	1	2	±0.210 mm per 300 mm	Rockwell C58	510	0.05	5° to 175°	000000	000000
M12	200	10.6	21,000	30	25	1	2	±0.210 mm per 300 mm	Rockwell C58	560	0.05	5° to 175°	000000	000000
M12	300	10.6	21,000	30	25	1	2	±0.210 mm per 300 mm	Rockwell C58	560	0.05	5° to 175°	0000000	000000

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., mm	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Root Dia., mm	Hardness	Tensile Strength, psi	Temperature Range, °F		Each
M14	500	1	4	±0.210 mm per 300 mm	11.5	Rockwell C58	21,000	5° to 175°	0000000	000000
M14	1,000	1	4	±0.210 mm per 300 mm	11.5	Rockwell C58	21,000	5° to 175°	0000000	000000
M16	500	1	5	±0.210 mm per 300 mm	13.5	Rockwell C58	21,000	5° to 175°	0000000	000000
M16	1,000	1	5	±0.210 mm per 300 mm	13.5	Rockwell C58	21,000	5° to 175°	000000	000000
M20	500	1	5	±0.210 mm per 300 mm	17.2	Rockwell C58	21,000	5° to 175°	0000000	000000
M20	1,000	1	5	±0.210 mm per 300 mm	17.2	Rockwell C58	21,000	5° to 175°	000000	000000
M20	1,500	1	10	±0.210 mm per 300 mm	16.4	Rockwell C58	21,000	5° to 175°	000000	000000
M25	500	1	5	±0.210 mm per 300 mm	22.2	Rockwell C58	21,000	5° to 175°	0000000	000000
M25	1,000	1	5	±0.210 mm per 300 mm	22.2	Rockwell C58	21,000	5° to 175°	0000000	000000
M25	1,500	1	10	±0.210 mm per 300 mm	20.2	Rockwell C58	21,000	5° to 175°	0000000	000000

Platform Ball Nuts—Right-Hand Threaded

Alloy Steel
Thread Size	Lg., mm	Wd., mm	Ht., mm	Center Ht., mm	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash, mm	Temperature Range, °F		Each
M14	35	34	30	13	1	4	Rockwell C58	1,200	0.1	5° to 175°	0000000	0000000
M16	36	42	32.5	16	1	5	Rockwell C58	1,200	0.1	5° to 175°	0000000	000000
M20	35	48	39	17	1	5	Rockwell C58	1,300	0.1	5° to 175°	0000000	000000
M20	58	48	46	18	1	10	Rockwell C58	2,350	0.1	5° to 175°	0000000	000000
M25	35	60	45	20	1	5	Rockwell C58	1,500	0.1	5° to 175°	0000000	000000
M25	94	60	55	23	1	10	Rockwell C58	7,000	0.1	5° to 175°	0000000	000000

Flange Ball Nuts—Right-Hand Threaded

Alloy Steel
Thread Size	Lg., mm	Dia., mm	Wd., mm, mm	Ht., mm	Thick., mm	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Dynamic Thrust Load Cap., lbs.	Max. Backlash, mm	Temperature Range, °F		Each
M14	40	31	50	37	10	1	4	Rockwell C58	1,200	0.1	5° to 175°	0000000	0000000
M16	40	34	54	40	10	1	5	Rockwell C58	1,200	0.1	5° to 175°	0000000	000000
M20	40	40	60	46	10	1	5	Rockwell C58	1,300	0.1	5° to 175°	0000000	000000
M20	64	52	82	64	12	1	10	Rockwell C58	2,350	0.1	5° to 175°	0000000	000000
M25	40	43	67	50	10	1	5	Rockwell C58	1,500	0.1	5° to 175°	0000000	000000
M25	98	60	96	72	15	1	10	Rockwell C58	7,000	0.1	5° to 175°	0000000	000000

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Selecting Compatible Lead Screws and Nuts

Metric Ball Screws and Nuts