Ball Splines | McMaster-Carr

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	Bearing Type Bearing Type	Show

	Ball

	Bearing Type Bearing Type	Hide


Ball	Plain

	System of Measurement System of Measurement

Metric

	For Shaft Diameter For Shaft Diameter

	For Shaft Type For Shaft Type

	Spline

	For Number of Splines For Number of Splines

	4

	Linear Bearing Component Linear Bearing Component


Bearing	Bearing in Housing

	OD OD

	ID ID

	Bearing Material Bearing Material

Steel

Stainless Steel

	Overall Length Overall Length

	Maximum Torque Maximum Torque

Less than 1,000 in.-lbs.

1,000 to 1,999 in.-lbs.

2,000 to 2,999 in.-lbs.

3,000 to 9,999 in.-lbs.

	Lubrication Lubrication

Lubricated

	Ball Material Ball Material

Steel

Stainless Steel

	Maximum Temperature Maximum Temperature

176° F

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

REACH Compliant

	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

	Base Thickness Base Thickness

	Bolt Circle Diameter Bolt Circle Diameter

	Flange OD Flange OD

	Mounting Hole Thread Size Mounting Hole Thread Size

	Mounting Hole Diameter Mounting Hole Diameter

51 Products

About Shafts

About Linear Bearings

Linear Bearings for Spline Shafts

Grooved on the inside, these bearings rotate with your spline shaft as they move loads up and down its length. They have fixed alignment—use them where shaft misalignment is unlikely.

Ball bearings, also known as ball splines, create less friction than plain bearings, making them smooth and precise even at high speeds. However, they don’t produce as much rotational force. Choose them for robotic systems and other automated applications that require complex, fast movements. Bearings with stainless steel balls resist rusting better than those with steel balls.

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

Steel Ball Bearings

Ball Bearing with Steel Balls

For Four Splines

Fixed Alignment
For No. of Splines	For Shaft Dia., mm	Overall Lg., mm	OD, mm	Max. Torque, in.-lbs.	Max. Temperature, °F		Each
4	6	25	14	13	176°	00000000	000000
4	8	25	16	18	176°	00000000	00000
4	10	33	21	38	176°	00000000	00000
4	13	36	24	185	176°	00000000	00000
4	16	50	31	531	176°	00000000	00000
4	18.2	60	32	734	176°	00000000	000000
4	25	71	42	1,672	176°	00000000	000000
4	28	80	45	2,557	176°	00000000	000000
4	30	80	47	2,716	176°	00000000	000000
4	40	100	64	5,964	176°	00000000	000000

Stainless Steel Ball Bearings

Ball Bearing with Stainless Steel Balls

For Four Splines

Fixed Alignment
For No. of Splines	For Shaft Dia., mm	Overall Lg., mm	OD, mm	Max. Torque, in.-lbs.	Max. Temperature, °F		Each
4	6	25	14	13	176°	00000000	0000000
4	13	36	24	185	176°	00000000	000000

Steel Spline Shafts

Splined on Both Ends

Splined End × Step-Down End

Four Splines

				Step
Dia., mm	Lg., mm	Spline Lg., mm	End Type	Dia., mm	Lg., mm		Each
4 Splines
6	150	150	Splined End × Splined End	__	__	00000000	0000000
6	200	200	Splined End × Splined End	__	__	000000000	000000
6	300	300	Splined End × Splined End	__	__	000000000	000000
8	150	150	Splined End × Splined End	__	__	00000000	000000
8	200	200	Splined End × Splined End	__	__	000000000	00000
10	200	200	Splined End × Splined End	__	__	00000000	000000
10	300	300	Splined End × Splined End	__	__	000000000	000000
10	600	600	Splined End × Splined End	__	__	000000000	000000
13	200	200	Splined End × Splined End	__	__	000000000	00000
13	500	500	Splined End × Splined End	__	__	000000000	000000
13	700	700	Splined End × Splined End	__	__	000000000	000000
16	200	200	Splined End × Splined End	__	__	000000000	000000
16	700	700	Splined End × Splined End	__	__	000000000	000000
18.2	350	200	Splined End × Step-Down End	15	150	00000000	000000
25	200	200	Splined End × Splined End	__	__	000000000	000000
25	500	500	Splined End × Splined End	__	__	000000000	000000
28	450	300	Splined End × Step-Down End	25	150	00000000	000000
30	300	300	Splined End × Splined End	__	__	000000000	000000
30	1,000	1,000	Splined End × Splined End	__	__	000000000	000000
30	2,000	2,000	Splined End × Splined End	__	__	000000000	00000000
40	400	400	Splined End × Splined End	__	__	000000000	000000
40	700	700	Splined End × Splined End	__	__	000000000	000000

Mounted Linear Bearings for Spline Shafts

Ready to mount on your linear motion spline shaft, these bearings come installed in a housing and have grooves that match up with the splines on your shaft. Because they’re splined, they transfer rotational force as they move loads up and down the shaft’s length. A flanged end makes them best for lifting and lowering loads on vertical shafts. All have fixed alignment—use them where shaft misalignment is unlikely.

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

Steel Ball Bearings with Steel Housing

Ball Bearing

For Four Splines

								Mounting Holes
For No. of Splines	For Shaft Dia., mm	Overall Lg., mm	Flange OD, mm	Bolt Circle Dia., mm	OD, mm	Max. Torque, in.-lbs.	Max. Temperature, ° F	No. of	Thread Size		Each
Fixed Alignment
4	6	25	30	22	14	13	176°	4	M3 × 0.5 mm	00000000	000000
4	8	25	32	24	16	18	176°	4	M3 × 0.5 mm	00000000	00000
4	10	33	42	32	21	38	176°	4	M4 × 0.7 mm	00000000	00000
4	13	36	43	33	24	185	176°	4	M4 × 0.7 mm	000000000	00000
4	16	50	50	40	31	531	176°	4	M4 × 0.7 mm	000000000	00000
4	18.2	60	51	40	32	734	176°	4	M4 × 0.7 mm	00000000	000000
4	20	63	58	45	35	929	176°	4	M5 × 0.8 mm	000000000	000000
4	23	70	60	47	37	1,433	176°	4	M5 × 0.8 mm	00000000	000000
4	25	71	65	52	42	1,672	176°	4	M5 × 0.8 mm	000000000	000000
4	28	80	70	54	45	2,557	176°	4	M6 × 1 mm	00000000	000000
4	30	80	75	60	47	2,716	176°	4	M6 × 1 mm	000000000	000000
4	37.4	100	90	72	60	5,637	176°	4	M8 × 1.25 mm	00000000	000000
4	40	100	100	82	64	5,964	176°	4	M8 × 1.25 mm	000000000	000000

Steel Spline Shafts

Splined on Both Ends

Splined End × Step-Down End

Four Splines

				Step
Dia., mm	Lg., mm	Spline Lg., mm	End Type	Dia., mm	Lg., mm		Each
4 Splines
6	150	150	Splined End × Splined End	__	__	00000000	0000000
6	200	200	Splined End × Splined End	__	__	000000000	000000
6	300	300	Splined End × Splined End	__	__	000000000	000000
8	150	150	Splined End × Splined End	__	__	00000000	000000
8	200	200	Splined End × Splined End	__	__	000000000	00000
10	200	200	Splined End × Splined End	__	__	00000000	000000
10	300	300	Splined End × Splined End	__	__	000000000	000000
10	600	600	Splined End × Splined End	__	__	000000000	000000
13	200	200	Splined End × Splined End	__	__	000000000	00000
13	500	500	Splined End × Splined End	__	__	000000000	000000
13	700	700	Splined End × Splined End	__	__	000000000	000000
16	200	200	Splined End × Splined End	__	__	000000000	000000
16	700	700	Splined End × Splined End	__	__	000000000	000000
18.2	350	200	Splined End × Step-Down End	15	150	00000000	000000
20	200	200	Splined End × Splined End	__	__	000000000	000000
20	2,000	2,000	Splined End × Splined End	__	__	000000000	000000
23	350	200	Splined End × Step-Down End	20	150	00000000	000000
25	200	200	Splined End × Splined End	__	__	000000000	000000
25	500	500	Splined End × Splined End	__	__	000000000	000000
28	450	300	Splined End × Step-Down End	25	150	00000000	000000
30	300	300	Splined End × Splined End	__	__	000000000	000000
30	1,000	1,000	Splined End × Splined End	__	__	000000000	000000
30	2,000	2,000	Splined End × Splined End	__	__	000000000	00000000
37.4	550	400	Splined End × Step-Down End	30	150	00000000	000000
40	400	400	Splined End × Splined End	__	__	000000000	000000
40	700	700	Splined End × Splined End	__	__	000000000	000000