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Support Units for Ball Screw, Fixed Side Narrow Pitch Square Type

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Volume Discount

Check FAQ of this product (3 items)

MISUMI

MiSUMi Economy

MISUMI

This is an economy item, The price is cheaper than the MISUMI standard product.

RoHS

Part Number

Configured Part Number is shown.

Drawing/Specifications
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Part Numbers

Product Overview

Dimensional Drawing

■Material Table

Type	Material			Surface treatment
	①③	⑥	⑦	①③	⑥⑦
C-TBK	S45C equivalent	SUJ2equivalent	S20C equivalent	Black oxide	Black oxide
*C-TBKHR				Low Temperature Black Chrome Plating

(*)Marked Low Temperature Black Chrome Plating is under preparation. Currently special order request can be accepted under the condition of MOQ.

Support Unit Rated Load

Bearing No.	Basic Dynamic Rated Load (N)	Basic Static Rated Load (N)
10	3330	1480
12	3640	1790
15	4170	2280
17	7350	3960
20	7000	4050
25	11060	6920
30	15400	9940
35	20300	13440
40	24640	17150

Specification Table

Part Number		Support side SET	Axis Diameter d	L	L₁	L₂	L₃	B	H	Shaft Height h	B₁	H₁	P	C₁	C₂	d₁	d₂	ℓ	M (Fine Thread)	Oil Seal Corresponding Diameter
Type	No.	Support side SET	Axis Diameter d	L	L₁	L₂	L₃	B	H	Shaft Height h	B₁	H₁	P	C₁	C₂	d₁	d₂	ℓ	M (Fine Thread)	Oil Seal Corresponding Diameter
C-TBK (Black oxide) *C-TBKHR (Low Temperature Black Chrome Plating)	10	SET (Only when purchasing set)	10	25	5	29	5	60	39	22	34	32.5	46	13	6	6.6	11	5	M10 × 1.0	14.5
	12		12	25	5	29	5	60	43	25	35	32.5	46	13				1.5	M12 × 1.0	15.5
	15		15	27	6	32	6	70	48	28	40	38	54	15				6.5	M15 × 1.0	19.5
	17		17	35	9	44	7	86	64	39	50	55	68	19	8	9	14	8.5	M17 × 1.0	24.5
	20		20	35	8	43	8	88	60	34	52	50	70	19	8	9	14	8.5	M20 × 1.0	25.5
	25		25	42	12	54	9	106	80	48	64	70	85	22	10	11	17.5	11	M25 × 1.5	31.5
	30		30	45	14	61	9	128	89	51	76	78	102	23	11	14	20	13	M30 × 1.5	39.5
	35		35	50	14	67	12	140	96	52	88	79	114	26	12	14	20	13	M35 × 1.5	44.5
	40		40	61	18	76	15	160	110	60	100	90	130	33	14	18	26	17.5	M40 × 1.5	49.5

(1), (2), (3) , (4) and (5) are an integrated structure. Do not disassemble.

The SET includes the fixed side support unit and the supported side support unit.

The SET only available for Black oxide type, for low temperature chrome plating please choose the fix side and support side separately.

(*)Marked Low Temperature Black Chrome Plating is under preparation. Currently special order request can be accepted under the condition of MOQ.

Collar Diagram

Type	No.	D	V	L
C-TBK C-TBKHR	10	14.5	10	5
	12	15.5	12	5
	15	19.5	15	6
	17	23.4	17	7
	20	27.5	20	8
	25	31.4	25	9
	30	36.5	30	9
	35	43	35	12
	40	49	40	15

Type	No.	M Fine Thread	B	m	d	D	F
C-TBK C-TBK-SET C-TBKHR	10	M10 × 1.0	8	M3	15	20	16
	12	M12 × 1.0	8	M4	17	22	19
	15	M15 × 1.0	8	M4	21	25	22
	17	M17 × 1.0	13	M4	21	29	24
	20	M20 × 1.0	11	M4	26	35	30
	25	M25 × 1.5	15	M5	33	43	35
	30	M30 × 1.5	20	M6	39	48	40
	35	M35 × 1.5	21	M6	47	60	50
	40	M40 × 1.5	25	M6	48	62	50

Product Features

Usage Method

Suface treatment comparison:
The black oxide type is cost-effective and can resist corrosion if protective oil is applied regularly.
If it is used in a high-humidity environment or requires less maintenance, it is recommended to use the low-temperature black chrome type.

Specification	Black Oxide	Low-Temperature Black Chrome
Method	Chemical conversion on steel surface forming black oxide layer	Electroplating black chrome at low temperature, usually with Ni underlayer.
Surface Quality	Matte black, prone to fading with abrasion.	Deep black, smooth, durable color, high aesthetics.
Coating Thickness	Very thin, ~0.5–1.5 μm, almost no dimensional change.	0.3–2 μm, thicker if Ni underlayer is applied.
Corrosion Resistance	Moderate, depends on oil layer; not suitable for long-term outdoor use.	Very high, withstands humid/salty environments, long coating life.
Advantages	Low cost, fast, no dimensional change, easy to reprocess.	Superior corrosion resistance, hard, durable color, high aesthetics.
Disadvantages	Poor corrosion resistance without maintenance, easy fading.	Complex process, higher cost.

SET part number	SET Products Components
SET part number	Fixed side part number	Support side part number
C-TBK10-SET	C-TBK10	C-TBF10
C-TBK12-SET	C-TBK12	C-TBF12
C-TBK15-SET	C-TBK15	C-TBF15
C-TBK17-SET	C-TBK17	C-TBF17
C-TBK20-SET	C-TBK20	C-TBF20
C-TBK25-SET	C-TBK25	C-TBF25
C-TBK30-SET	C-TBK30	C-TBF30
C-TBK35-SET	C-TBK35	C-TBF35
C-TBK40-SET	C-TBK40	C-TBF40

Precautions

Example of Use

Part Number

CAD Data download and 3D preview are not available because the part number has not yet been determined.

*In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.

CAD Download

: 30; 45; 60

Part Number
C-TBK10
C-TBK10-SET
C-TBK12
C-TBK12-SET
C-TBK15
C-TBK15-SET
C-TBK17
C-TBK17-SET
C-TBK20
C-TBK20-SET
C-TBK25
C-TBK25-SET
C-TBK30
C-TBK30-SET
C-TBK35
C-TBK35-SET
C-TBK40
C-TBK40-SET

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Shaft Dia. d (Ø)	Shaft Height h (mm)	Oil Seal Applicable Shaft Dia. (Ø)	Type	Total Length L (mm)	Total Width B (mm)	Total Height H (mm)
MYR 74.71	1 Piece(s)	Available	1 Day(s)	10	22	14.5	Single Product	25	60	39
MYR 99.48	1 Piece(s)	Available	1 Day(s)	10	22	14.5	SET Product	25	60	39
MYR 76.44	1 Piece(s)	Available	1 Day(s)	12	25	15.5	Single Product	25	60	43
MYR 101.43	1 Piece(s)	Available	1 Day(s)	12	25	15.5	SET Product	25	60	43
MYR 91.21	1 Piece(s)	Available	1 Day(s)	15	28	19.5	Single Product	27	70	48
MYR 126.92	1 Piece(s)	Available	1 Day(s)	15	28	19.5	SET Product	27	70	48
MYR 210.68	1 Piece(s)	Available	10 Day(s)	17	39	24.5	Single Product	35	86	64
MYR 296.43	1 Piece(s)	Available	10 Day(s)	17	39	24.5	SET Product	35	86	64
MYR 151.69	1 Piece(s)	Available	1 Day(s)	20	34	27.5	Single Product	35	88	60
MYR 211.20	1 Piece(s)	Available	1 Day(s)	20	34	27.5	SET Product	35	88	60
MYR 209.43	1 Piece(s)	Available	1 Day(s)	25	48	31.5	Single Product	42	106	80
MYR 290.59	1 Piece(s)	Available	6 Day(s)	25	48	31.5	SET Product	42	106	80
MYR 293.79	1 Piece(s)	Available	6 Day(s)	30	51	39,5	Single Product	45	128	89
MYR 525.30	1 Piece(s)	Available	10 Day(s)	30	51	39.5	SET Product	45	128	89
MYR 476.91	1 Piece(s)	Available	10 Day(s)	35	52	44.5	Single Product	50	140	96
MYR 685.31	1 Piece(s)	Available	10 Day(s)	35	52	44.5	SET Product	50	140	96
MYR 616.36	1 Piece(s)	Available	6 Day(s)	40	60	49.5	Single Product	61	160	110
MYR 903.22	1 Piece(s)	Available	10 Day(s)	40	60	49.5	SET Product	61	160	110

Basic Information

Type	Fixed Side Mounting Hole Narrow Pitch	Shape	Square Type	Surface Treatment	Black Oxide
Material	S45C	Surface Treatment	Ferroferric oxide protective film (Black Oxide)

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18 Part Numbers

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Completed

Specification/Dimensions

Shaft Dia. d(Ø)
10

12

15

17

20

25

30

35

40
Clear
Shaft Height h(mm)
22

25

28

34

39

48

51

52

60
Clear
Oil Seal Applicable Shaft Dia.(Ø)
14.5

15.5

19.5

24.5

27.5

31.5

39,5

39.5

44.5

49.5
Clear
Type
- SET Product
- Single Product
Clear
type
- C-TBK
- C-TBK-SET
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

1 Day(s) or Less

6 Day(s) or Less

10 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: What does "applicable shaft diameter of oil seal" mean?: Answer: The support unit purchased from MISUMI already includes the collar. The collar and the oil seal in the support have been matched, and it can be ignored as long as it is matched with MISUMI ball screw on sale according to the "Ball Screw Applicability Table". However, if it is matched with the ball screw purchased from other companies, please select the type according to shape and size of the shaft end of the screw.
Question: What should I do if the accessories in the support unit are lost or damaged?: Answer: All kinds of accessories can be sold separately, please select according to the MISUMI catalog
Question: Square type support units are divided into standard type and narrow pitch type, what is the difference?: Answer: In the case of limited pitch space, please use the narrow pitch type, but be sure to choose according to the shaft end size of the ball screw. For example: please use standard type (C-TEK) support unit for C-TBSE type ball screw and narrow pitch type (C-TBK) for C-TBSB type ball screw.

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Support Units for Ball Screw, Fixed Side Narrow Pitch Square Type

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Basic Information

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Specification/Dimensions

Shaft Dia. d(Ø)

Shaft Height h(mm)

Oil Seal Applicable Shaft Dia.(Ø)

Type

type

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Days to Ship

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