M25 Ball Screws | McMaster-Carr

Filter by

System of Measurement

Component

Length

Travel Distance per Turn

Nut Type

Diameter

Root Diameter

Dynamic Thrust Load Capacity

1,000 lb. to 1,999 lb.

2,000 lb. to 9,999 lb.

Thread Type

Metric

Metric Ball

Thread Direction

Right Hand

Number of Thread Starts

Threading

Fully Threaded

Center Height

20 mm

23 mm

Number of Mounting Holes

Mounting Hole Thread Size

Material

Height

Export Control Classification Number (ECCN)

Flange Thickness

Maximum Temperature

Minimum Temperature

REACH

RoHS

DFARS Specialty Metals

Hardness

8 Products

Ball Screws and Nuts


	Ball Nuts Flange Nut Style C

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, they 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 direction and 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.

Ball Screws—Right-Hand Threaded

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

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

	Lg., mm	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Root Dia., mm	Hardness	Tensile Strength, psi	Temp. Range, ° F		Each
Carbon Steel



	M25	500	1	5	±0.210 mm/300 mm	22.2	Rockwell C58	21,000	5 to 175	0000000	0000000


	M25	1,000	1	5	±0.210 mm/300 mm	22.2	Rockwell C58	21,000	5 to 175	0000000	000000
	M25	1,500	1	10	±0.210 mm/300 mm	20.2	Rockwell C58	21,000	5 to 175	0000000	000000

Platform Ball Nuts—Right-Hand Threaded

Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Ball Screws and Nuts , Platform Nut, Ball Nuts.

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

	Lg., mm	Wd., mm	Ht., mm	Ctr. Ht., mm	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash, mm	Temp. Range, ° F		Each
Alloy Steel



	M25	35	60	45	20	1	5	Rockwell C58	1,500	0.1	5 to 175	0000000	0000000


	M25	94	60	55	23	1	10	Rockwell C58	7,000	0.1	5 to 175	0000000	000000

Flange Ball Nuts—Right-Hand Threaded

Style C

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

					Flange, mm
	Style	Thread Size	Lg., mm	Dia., mm	Wd.	Ht.	Thk.	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash, mm	Temp. Range, ° F		Each
Alloy Steel



		C	M25	40	43	67	50	10	1	5	Rockwell C58	1,500	0.1	5 to 175	0000000	0000000


		C	M25	98	60	96	72	15	1	10	Rockwell C58	7,000	0.1	5 to 175	0000000	000000

Fast-Travel Ball Screws and Nuts


	Ball Nuts, Externally Threaded Nut, Style A

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.

Externally Threaded Ball Nuts—Right-Hand Threaded

Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Fast-Travel Ball Screws and Nuts, Ball Nuts, Externally Threaded Nut, Style A.

Style A

Carbon Steel—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.

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

	Thread Size	Lg., mm	Dia., mm	No. of Thread Starts	Travel Distance per Turn, mm	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash, mm	Temp. Range, ° F		Each
Carbon Steel



	A	M12	50	30	1	10	M25	Rockwell C56	1,000	0.02	32 to 150	00000000	0000000