Bearing Nuts | McMaster-Carr

	System of Measurement System of Measurement

Metric

Inch

	Thread Size Thread Size

	Thread Pitch Thread Pitch

	Thread Type Thread Type

	OD OD

	Nut Type Nut Type


Round	Locknut

Flange	Externally Threaded

Platform

	Width Width

	Material Material

Steel

Stainless Steel

	Face Style Face Style

Chamfered

Stepped

	For Spanner Wrench Style For Spanner Wrench Style

	Hook
	Pin

	Thread Spacing Thread Spacing

Coarse

Fine

Extra Fine

	Specifications Met Specifications Met

DIN

ISO

ANSI/ABMA

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

DFARS Specialty Metals
COTS-Exempt

	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

	For Lock Washer Specifications Met For Lock Washer Specifications Met

DIN 5406

DIN 462

	Insert Maximum Temperature Insert Maximum Temperature

160° F

210° F

	Component Component

	Ball Nut
	Ball Screw
	Ball Screw with One Machined End

	Length Length

	Travel Distance per Turn Travel Distance per Turn

	Thread Direction Thread Direction


Right Hand	Left Hand

	Finish Finish

Zinc Plated

Black Oxide

	Threading Threading


Fully Threaded	Partially Threaded

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505 Products

Power Transmission

Bearing Retaining Locknuts

With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place.

Bearing Retaining 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.

Bearing Retaining Jam Nuts

Used in pairs or with another bearing retaining nut, these jam nuts—often called shaft nuts—hold bearings, bushings, pulleys, and gears in place on your threaded shaft or spindle.

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.

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.

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.