Ball Bearing Nuts | McMaster-Carr

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	Thread Type Thread Type

Metric Ball

Ball

	System of Measurement System of Measurement

Metric

Inch

	Thread Size Thread Size

	Component Component

	Ball Nut
	Ball Screw
	Ball Screw with One Machined End

	Length Length

	Travel Distance per Turn Travel Distance per Turn

	Nut Type Nut Type


Flange	Externally Threaded

Platform

	Thread Direction Thread Direction


Right Hand	Left Hand

	Material Material

Steel

Stainless Steel

	Threading Threading


Fully Threaded	Partially Threaded

	Root Diameter Root Diameter

	Diameter Diameter

	Number of Thread Starts Number of Thread Starts

	Hardness Hardness

Rockwell C38

Rockwell C56

Rockwell C58

	Maximum Temperature Maximum Temperature

175° F

300° F

	Minimum Temperature Minimum Temperature

-65° F

-40° F

5° F

	Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity

10,000 lbs. or greater

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

DFARS Specialty Metals
COTS-Exempt

	Number of Mounting Holes Number of Mounting Holes

	Tensile Strength Tensile Strength

	Flange Material Flange Material

Steel

Stainless Steel

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

RoHS Compliant

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

REACH Compliant

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185 Products

Selecting Compatible Lead Screws and Nuts

Metric Ball 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 metric ball screws and nuts, these have a single thread that runs the length of the screw.

Ball Screws and Nuts

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.

Fast-Travel Ball Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start.

Self-Stopping Ball Screws and Nuts

Keep your ball screw spinning without the ball nut damaging your system. When the ball nut reaches the stop pin at either end of the ball screw, it disengages and begins to idle.

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.

Corrosion-Resistant Ball Screws and Nuts

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.