Ball Connectors | McMaster-Carr

	Component Component

	Material Material

Aluminum

Steel

Plastic

	Adjustability Adjustability

	Color Color

	Black
	Blue
	Gray

	Mount Type Mount Type

	Maximum Load Capacity Maximum Load Capacity

10 lbs.

35 lbs.

	Ball Diameter Ball Diameter

1 1/2"

	Mounting Location Mounting Location

	Length Length

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

DFARS Specialty Metals
COTS-Exempt

	Height Height

	Diameter Diameter

	Minimum Width Minimum Width

	Finish Finish

Anodized

Powder Coated

	Mounting Hole Pattern Compatibility Mounting Hole Pattern Compatibility

	For Sensor/Switch OD For Sensor/Switch OD

	Arm Type Arm Type

Any-Which-Way

Extended-Reach Rotating
with Ball

Rotating with Ball

Rotating/Tilting

Rotating/Tilting with Ball

	Mounting Hole Size Mounting Hole Size

	Maximum Opening Diameter Maximum Opening Diameter

1 1/4"

1 1/2"

2 1/2"

	Number of Mounting Holes Number of Mounting Holes

	Base Diameter Base Diameter

	Mounting Stud Thread Size Mounting Stud Thread Size

1/4"-20

3/8"-16

10-24

	ID ID

5/8"

7/8"

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53 Products

Ball-Grip Positioning Arms

Arm Built with Rotating Complete Arm with Ball, Rigid Connector, and Universal Mounting Plate

Ball-and-socket connections allow 360° positioning. Choose a complete arm or select a base, connectors, and a plate, grip, holder, or tray to build a complete arm.

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

Complete Arms

Rotating/Tilting

Rotating with Ball

Extended-Reach Rotating with Ball

Rotating/Tilting with Ball

Any-Which-Way

Rotating and rotating/tilting complete arms have handles to lock joints into position. For the rotating/tilting complete arm, mount the base to a bench or wall and secure the object you want to position to the attaching end.

Any-which-way complete arm bends and stays in position. It does not have a ball; a screw-on base (sold separately) must be secured to the attaching end to attach to a connector.

To see the product in motion, click on a part number.

								Base					Attaching End
Mount. Location	Max. Projection	Ht.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Mount. Fasteners Included	Dia.	Lg.	Wd.	No. of Mount. Holes	Mount Hole Dia.	Plate Dia.	Mount. Hole Dia.		Each
Rotating/Tilting
Bench, Wall	7 1/4"	__	__	10	Powder-Coated Aluminum	__	No	2 7/16"	__	__	7	3/16"	2 7/16"	3/16"	0000000	000000
Rotating with Ball
Wall	9 1/4"	9"	1 1/2"	10	Powder-Coated Aluminum	Rubber	No	__	4 3/4"	3 7/8"	6	11/32"	__	__	0000000	000000
Extended-Reach Rotating with Ball
Wall	15 1/4"	11 1/4"	1 1/2"	10	Powder-Coated Aluminum	Rubber	No	__	4 3/4"	3 7/8"	6	11/32"	__	__	0000000	000000
Rotating/Tilting with Ball
Bench, Wall	14 1/2"	14 1/2"	1 1/2"	10	Powder-Coated Aluminum	Rubber	No	__	3 7/16"	3 7/16"	4	11/32"	__	__	0000000	000000
Any-Which-Way
Bench, Wall	__	6"	__	10	Plastic	__	No	2 1/2"	__	__	4	13/64"	2 1/2"	13/64"	00000000	00000

Clamp-On Bases

Clamp On
with 1 1/4"
Max. Opening

Pipe-Mount Base
with 1 1/2"
Max. Opening

Pipe-Mount Base with 2 1/2" Max. Opening

Rectangular Bar-Mount Base

Clamp-on pipe-mount base with 1 1/2" max. opening has a handle to quickly grip and release pipes.

Max. Opening								Base
Dia.	Ht.	Wd.	Ht.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Lg.	Wd.		Each
Pipe Mount
1 1/4"	__	__	3"	1 1/2"	10	Powder-Coated Aluminum	Rubber	2 3/8"	7/8"	0000000	000000
1 1/2"	__	__	4 1/4"	1 1/2"	10	Plastic	Rubber	__	1 7/16"	00000000	00000
2 1/2"	__	__	3 1/2"	1 1/2"	10	Powder-Coated Aluminum	Rubber	4"	2 1/8"	00000000	00000
Rectangular Bar Mount
__	1 27/32"	2 1/2"	2 1/2"	1 1/2"	10	Powder-Coated Aluminum	Rubber	3 1/8"	1 1/4"	0000000	00000

Threaded Stud Bases

						Mount. Stud
Mount. Location	Ht.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Thread Size	Lg.		Each
Bench, Wall	3"	1 1/2"	10	Steel	Rubber	1/4"-20	5/8"	00000000	000000
Bench, Wall	3"	1 1/2"	10	Steel	Rubber	3/8"-16	3/8"	00000000	00000

Threaded Hole Bases

							Mount. Holes
Mount. Location	Ht.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Base Dia.	No. of	Pipe Size	Thread Type		Each
Pipe	3 1/4"	1 1/2"	10	Aluminum	Rubber	1 1/4"	1	1/2	NPT	00000000	000000

T-Slot Bases

	For T-Slot Rail Ht.
Mount. Location	Single	Double, Quad	Ht.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Base Dia.	Mount. Fasteners Included		Each
T-Slot Rail	1", 30mm, 1 1/2", 40mm, 45mm	2", 60mm, 3", 80mm, 90mm	2 1/4"	1 1/2"	10	Steel	Rubber	1 1/2"	Yes	00000000	000000

Magnetic Bases

Mount. Location	Ht.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Base Dia.		Each
Bench, Wall	2 1/4"	1 1/2"	10	Aluminum	Rubber	2 1/2"	0000000	000000

Suction Bases

Mount. Location	Ht.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Base Dia.		Each
Bench, Wall	1 7/8"	1 1/2"	10	Aluminum	Rubber	3 3/8"	00000000	000000

Adhesive Bases

Adhesive base includes an adhesive pad.

						Base
Mount. Location	Ht.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Lg.	Wd.		Each
Bench, Wall	3"	1 1/2"	10	Plastic	Rubber	5 1/2"	7 1/4"	0000000	000000

Rigid Connectors

Rigid connectors have a handle to lock the joints into position.

Lg.	For Ball Dia.	Max. Load Capacity, lbs.	Material		Each
3 1/2"	1 1/2"	10	Powder-Coated Aluminum	0000000	000000
5 5/8"	1 1/2"	10	Powder-Coated Aluminum	0000000	00000
9 1/8"	1 1/2"	10	Powder-Coated Aluminum	0000000	00000

Swivel Connectors

Swivel connector swivels to position both halves of the connector independently. With separate handles, you can lock one joint while positioning the other joint.

Lg.	For Ball Dia.	Max. Load Capacity, lbs.	Material		Each
6"	1 1/2"	10	Plastic	00000000	000000

Reducing Connectors

Reducing connector joins components with a 1 1/2" dia. ball to those with a 1" dia. ball. It has handles to lock joints into position.

Lg.	For Ball Dia.	Max. Load Capacity, lbs.	Material		Each
5 1/4"	1"; 1 1/2"	10	Plastic	00000000	000000

Universal Mounting Plates

						Mount.
Lg.	Wd.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Fasteners Included	No. of Holes	Hole Dia.		Each
6 1/4"	2"	1 1/2"	10	Powder-Coated Aluminum	Rubber	No	20	7/32"	00000000	000000

Hand-Held Device Grips

Hand-held device grips adjust for a secure hold. The hand-held device grips with 1" dia. ball require a reducing connector to mount to components with a 1 1/2" dia. ball.

Style	For Device Wd.	Lg.	Wd.	Ball Dia.	Max. Load Cap., lbs.	Material	Ball Material		Each
A	1 7/8"-3 1/4"	__	__	1"	10	Plastic	Rubber	00000000	000000
A	2 1/2"-5 3/4"	__	__	1"	10	Plastic	Rubber	00000000	00000
B	6 1/4"-8 1/8"	__	__	1 1/2"	10	Plastic	Rubber	00000000	00000
C	1 3/4"-2 3/4"	6 1/2"	4 1/2"	1 1/2"	10	Powder-Coated Aluminum	Rubber	0000000	00000

Tablet and Laptop Holders

Tablet and laptop holder has a spring-loaded adjustment to fit most tablets and compact laptops. In addition to a universal AMPS mounting hole pattern, it has a VESA (Video Electronics Standards Association) standard mounting hole pattern. It does not have a ball; affix a screw-on base (sold separately) to attach to a connector.

				Mount.
Lg.	Wd.	Max. Load Capacity, lbs.	Material	Fasteners Included	Hole Pattern Compatibility		Each
6"	8 9/16"-11 1/8"	10	Plastic	Yes	AMPS, VESA 75	00000000	000000

Flat-Panel Monitor Mounting Plates

Flat-panel monitor mounting plate has a VESA (Video Electronics Standards Association) standard mounting hole pattern.

						Mount.
Lg.	Wd.	Ball Dia.	Max. Load Capacity, lbs.	Material	Ball Material	Fasteners Included	No. of Holes	Hole Pattern Compatibility		Each
4 3/4"	4 3/4"	1 1/2"	10	Powder-Coated Aluminum	Rubber	No	14	VESA 100, VESA 75	0000000	000000

Magnetic Trays

Magnetic tray keeps fasteners and other small steel items in place. It does not have a ball; affix a screw-on base (sold separately) to attach to a connector.

					Mount.
Lg.	Wd.	For Ball Dia.	Max. Load Capacity, lbs.	Material	Fasteners Included	No. of Holes	Hole Dia.		Each
10"	13"	1 1/2"	10	Plastic	No	4	11/64"	00000000	000000

Scanner Gun Holders

Scanner gun holder has rubber fins to grip your scanner gun. The bottom is open to scan items without removing the scanner from the holder. It has a universal AMPS mounting hole pattern, but does not have a ball; affix a screw-on base (sold separately) to attach to a connector.

		Opening				Mount.
Ht.	Wd.	Ht.	Wd.	Max. Load Capacity, lbs.	Material	Fasteners Included	Hole Pattern Compatibility	Features		Each
5"	5 1/2"	3 1/2"	2 1/8"	10	Plastic	Yes	AMPS	Open Bottom, Rubber Fins	00000000	000000

Heavy Duty Ball-Grip Positioning Arms

Arm Built with Base, Two Straight Connectors, Straight Link, Locking Handle, and Sensor Mount

With strength for higher load capacities than other ball-grip positioning arms, these arms have a heavy duty construction. Ball-and-socket connections allow 360° positioning. The base, connectors, and links are hollow for routing wires, cables, and small hoses. Select a base, connectors, link, and plate or mount to build a complete arm.

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

Bases

Base is for use with straight and tee connectors.

For T-Slot Rail
Ht.	Style	Dia.	ID	Lg.	Max. Load Capacity, lbs.	Material	Color	Mount. Fasteners Included		Each
1", 1 1/2"	Single	2 1/2"	7/8"	2 1/2"	35	Anodized Aluminum	Blue	Yes	0000000	000000

Straight Connectors

Straight connector is for use with straight links.

Dia.	ID	Lg.	Max. Load Capacity, lbs.	Material	Color		Each
2"	7/8"	2"	35	Anodized Aluminum	Blue	0000000	000000

Tee Connectors

Tee connector is designed to work with a tee link to create two branches from one base.

Tilt Range of Motion	Dia.	ID	Lg.	Max. Load Capacity, lbs.	Material	Color		Each
180°	2"	1"	2 1/2"	35	Anodized Aluminum	Blue	0000000	000000

Straight Links

Dia.	ID	Lg.	Max. Load Capacity, lbs.	Material	Color		Each
1 1/4"	7/8"	2 3/4"	35	Anodized Aluminum	Blue	0000000	000000
1 1/4"	7/8"	4 3/4"	35	Anodized Aluminum	Blue	0000000	00000
1 1/4"	7/8"	6 3/4"	35	Anodized Aluminum	Blue	0000000	00000
1 1/4"	7/8"	8 3/4"	35	Anodized Aluminum	Blue	0000000	00000
1 1/4"	7/8"	12 3/4"	35	Anodized Aluminum	Blue	0000000	00000

Tee Links

Dia.	ID	Lg.	Max. Load Capacity, lbs.	Material	Color		Each
1 1/4"	7/8"	4 3/4"	35	Anodized Aluminum	Blue	0000000	000000

Telescoping Links

Dia.	ID	Lg.	Max. Load Capacity, lbs.	Material	Color	Includes		Each
1 3/8"	5/8"	6 3/4"-10 3/4"	35	Anodized Aluminum	Blue	Adjustable Handle	0000000	0000000

Blank Mounting Plates

Mounting plates require a base and a straight or tee connector to attach to a link. Blank mounting plate allows you to drill custom mounting holes.

Lg.	Wd.	Max. Load Capacity, lbs.	Material	Color	Mount. Fasteners Included		Each
4.31"	2 1/2"	35	Anodized Aluminum	Blue	Yes	0000000	000000

Machine Vision Camera Mounting Plates

2 3/4" Lg.

3" Lg.

4" Lg.

4 5/16" Lg.

Mounting plates require a base and a straight or tee connector to attach to a link. Machine vision camera mounting plates come with mounting hole patterns for specific brand cameras.

					Mount.
Lg.	Wd.	Max. Load Capacity, lbs.	Material	Color	Fasteners Included	Hole Pattern Compatibility		Each
2 3/4"	2 1/2"	35	Anodized Aluminum	Blue	Yes	Cognex In-Sight 2000 Cognex In-Sight 8000	0000000	000000
3"	2 1/2"	35	Anodized Aluminum	Blue	Yes	Cognex Dataman 300 Cognex Dataman 302 Cognex Dataman 360 Cognex Dataman 470 Cognex Dataman 474 Cognex Dataman 70 Cognex In-Sight 7000 Cognex In-Sight 7800	0000000	00000
4"	3 1/2"	35	Anodized Aluminum	Blue	Yes	Smart Vision ODS75 Smart Vision ODSW75 Smart Vision S75 Smart Vision SC75 Smart Vision SW75	0000000	00000
4 5/16"	2 1/2"	35	Anodized Aluminum	Blue	Yes	BOA Cognex Checker 100 Cognex In-Sight 5000 DALSA DVT Legend 500 Dataman 100/200 Keyence IV-500/150/2000	0000000	00000

Flat-Panel Monitor Mounting Plate

Mounting plates require a base and a straight or tee connector to attach to a link. Flat-panel monitor mounting plate has a VESA (Video Electronics Standards Association) standard mounting hole pattern.

					Mount.
Lg.	Wd.	Max. Load Capacity, lbs.	Material	Color	Fasteners Included	Hole Pattern Compatibility		Each
4 1/2"	4 1/2"	35	Anodized Aluminum	Blue	Yes	VESA 100, VESA 75	0000000	000000

Sensor Mounts

For 8 mm and 12 mm Sensor/Switch OD

For 18 mm and 30 mm Sensor/Switch OD

Sensor mounts are threaded for sensors. They have sight holes so you can view indicator lights.

For Sensor/Switch OD, mm	Dia.	Lg.	Max. Load Capacity, lbs.	Material	Color		Each
8	3/4"	2 1/4"	35	Anodized Aluminum	Blue	0000000	000000
12	3/4"	2 1/4"	35	Anodized Aluminum	Blue	0000000	00000
18	1 11/32"	3 3/4"	35	Anodized Aluminum	Blue	0000000	00000
30	1 3/4"	3 3/4"	35	Anodized Aluminum	Blue	0000000	00000

Start/Stop Switch Mounts

Start/stop switch mount attaches a switch to a machine.

For Sensor/Switch OD, mm	Dia.	Lg.	Max. Load Capacity, lbs.	Material	Color		Each
30	3 1/2"	3 3/4"	35	Anodized Aluminum	Blue	0000000	000000

Vacuum Lifter Mounts

					Air Connection
Dia.	Lg.	Max. Load Capacity, lbs.	Material	Color	Pipe Size	Thread Type	Gender	Mounting Hole Size		Each
1 1/4"	3 1/16"	35	Anodized Aluminum	Blue	1/2	BSPP	Female	M8, 1/4 BSPP, 3/8 BSPP, 1/2 BSPP	00000000	000000

Locking Handles

Locking handle can be used with straight and tee connectors to lock joints in place to restrict movement.

			Mount. Stud
Lg.	Material	Color	Thread Size	Lg.		Each
2"	Steel	Black	10-24	1"	0000000	000000