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Part Number Complete

SP25B16-N-10K

Number of Teeth Shaft Bore Dia. D (or d) Type Material Shaft Type Bore Specification type CAD Days to Ship

Specification/Dimensions

Number of Teeth(T)
16

17

18

19

20

21

22

23

24

25

26

28

30

32

34

35

36

38

40
Clear
Shaft Bore Dia. D (or d)(mm)
10

10K

12

15

16

20
Clear
Type
- Pilot Bore Type
- Shaft Bore Machined Type
Clear
Material
- Steel
  - S45C Equivalent
- Stainless Steel
  - SUS304 Equivalent
Clear
Shaft Type
- Standard Pilot Bore
- Shaft Bore Machining Configurable
Clear
Bore Specification
- N (New JIS Key + Tap)
- S (Pilot Bore)
Clear
type
- SP25B
- SSP25B
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

6 Day(s) or Less

8 Day(s) or Less

12 Day(s) or Less
Clear

Specify Alterations

Sprockets-25B Series

Volume Discount

Brand :

Part Number :

SP25B16-N-10K

SP25B16-N-[10,12]

SP25B16-S-9

SP25B17-N-10K

SP25B17-N-[10,12]

SP25B17-S-9

SP25B18-N-10K

SP25B18-N-[10,12]

SP25B18-S-9

SP25B19-N-10K

SP25B19-N-[10,12]

SP25B19-S-9

SP25B20-N-10K

SP25B20-N-[10,12]

SP25B20-S-9

SP25B21-N-10K

SP25B21-N-[10,12]

SP25B21-S-9

SP25B22-N-[12,15]

SP25B22-S-9

SP25B16-N-10K

Order Qty :
Price :

---
Total Price :

---
Days to ship :

---

Select part number to Order Now/ Add to Cart

CAD Download

(i)
Caution

Please check the content on our website as the PDF does not contain the most up-to-date information.

Product Description

In addition to the shaft hole machined type, we also offer shaft hole rough machined products (S specification) that allow for free additional machining.

SP25B

[ ! ]Offset between tooth tip and keyway is ±0.5mm.

SSP25B
Sprockets/25B Series:Related Image

[ ! ]Offset between tooth tip and keyway is ±0.5mm.

Type	[ M ]Material
SP25B	S45C Equivalent (Spurs are Induction Hardened)
SSP25B	SUS304 Equivalent

[ A ] Accessory: Set Screw
(Only for shaft bore specifications Ⓝ)
[ ! ]SP25B Series Spurs are not Induction Hardened.

Specifications

Part Number	−	Shaft Bore Specs.	−	Shaft Bore Dia.
SP25B16	−	N	−	10
SSP25B16	−	S	−	11

■Compatible Chain Selection Method >> P.1578
Technical Data of Mechanical Transmission Chain >> P.2243

Part Number				Shaft Bore Specs.	Shaft Bore Specs. (D)							Dp	Do	H	GD	L	ℓ	X	Z	Mass (g)
Type			Number of Teeth		S Specification	N Specification(H7)
Type	Nominal	Hub Type	Number of Teeth		S Specification	N Specification(H7)
SP	25	B	16	S N	9	10	10K	12				32.55	36	25	−	15	6	2.8	−	60
			17		9	10	10K	12				34.56	38							70
			18		9	10	10K	12				36.57	40							70
			19		9	10	10K	12				38.58	42	28						90
			20		9	10	10K	12				40.59	44							90
			21		9	10	10K	12				42.61	46							100
			22		9			12	15			44.62	48	30						110
			23		9			12	15			46.63	50							120
			24		9			12	15			48.65	52							140
			25		9			12	15	16		50.66	54	35
			26		9			12	15	16		52.68	56
			28		9			12	15	16		56.71	60							150
			30		9			12	15	16		60.75	64							160
			32		10				15	16	20	64.78	68	40		20	8			200
			34		10				15	16	20	68.82	72							210
			35		10				15	16	20	70.84	74							210
			36		10				15	16	20	72.86	76							220
			38		10				15	16	20	76.9	80							260
			40		10				15	16	20	80.93	84							270

■Compatible Chain Selection Method >> P.1578
Technical Data of Mechanical Transmission Chain >> P.2243

Part Number				Shaft Bore Specs.	Shaft Bore Specs. (D)				Dp	Do	H	GD	L	ℓ	X	Z	Mass (g)
Type			Number of Teeth		S Specification	N Specification(H7)
Type	Nominal	Hub Type	Number of Teeth		S Specification	N Specification(H7)
SSP	25	B	16	S N	9	10			32.55	36	21	−	16	6	2.8	−	60
			17		9	10			34.56	38	23						70
			18		9	10			36.57	40	25						70
			19		9	10	12		38.58	42	26						90
			20		9	10	12		40.59	44	28						90
			21		9		12	15	42.61	46	30		18	7			100
			22		9		12	15	44.62	48							110
			23		9		12	15	46.63	50							120
			24		9		12	15	48.65	52							140
			25		9		12	15	50.66	54
			26		9		12	15	52.68	56
			28		9		12	15	56.71	60							150
			30		9		12	15	60.75	64							160
			32		10		12	15	64.78	68				8			200

■Shaft Bore Machining Dimension Table

Shaft Bore Dia. D	Keyway b² x t²	Set Screw M
10	3x1.4	4
10K	4x1.8	4
12	4x1.8	5
14~17	5x2.3	6
18~22	6x2.8	6
24~30	8x3.3	8
32~38	10x3.3	8
40, 42	12x3.3	8
45, 50	14x3.8	10

[ ! ]Shaft Bore Sizes are different for the following products.

Combination	Set Screw M
Nominal35, Number of Teeth17, Shaft Dia.25	6
Nominal40, Number of Teeth14, Shaft Dia.25	6
Nominal40, Number of Teeth15, Shaft Dia.30	6
Nominal50, Number of Teeth11~13, Shaft Dia.24 or more	6

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 45; 60

Part Number
SP25B16-N-10K
SP25B16-N-[10,12]
SP25B16-S-9
SP25B17-N-10K
SP25B17-N-[10,12]
SP25B17-S-9
SP25B18-N-10K
SP25B18-N-[10,12]
SP25B18-S-9
SP25B19-N-10K
SP25B19-N-[10,12]
SP25B19-S-9
SP25B20-N-10K
SP25B20-N-[10,12]
SP25B20-S-9
SP25B21-N-10K
SP25B21-N-[10,12]
SP25B21-S-9
SP25B22-N-[12,15]
SP25B22-S-9
SP25B23-N-[12,15]
SP25B23-S-9
SP25B24-N-[12,15]
SP25B24-S-9
SP25B25-N-[12,15,16]
SP25B25-S-9
SP25B26-N-[12,15,16]
SP25B26-S-9
SP25B28-N-[12,15,16]
SP25B28-S-9
SP25B30-N-[12,15,16]
SP25B30-S-9
SP25B32-N-[15,16,20]
SP25B32-S-10
SP25B34-N-[15,16,20]
SP25B34-S-10
SP25B35-N-[15,16,20]
SP25B35-S-10
SP25B36-N-[15,16,20]
SP25B36-S-10
SP25B38-N-[15,16,20]
SP25B38-S-10
SP25B40-N-[15,16,20]
SP25B40-S-10
SSP25B16-N-10
SSP25B16-S-9
SSP25B17-N-10
SSP25B17-S-9
SSP25B18-N-10
SSP25B18-S-9
SSP25B19-N-[10,12]
SSP25B19-S-9
SSP25B20-N-[10,12]
SSP25B20-S-9
SSP25B21-N-[12,15]
SSP25B21-S-9
SSP25B22-N-[12,15]
SSP25B22-S-9
SSP25B23-N-[12,15]
SSP25B23-S-9

Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Number of Teeth (T)	Shaft Bore Dia. D (or d) (mm)	Type	Material	Shaft Type	Bore Specification	Keyway b2 x t2
₹ 727.94	1 Piece(s)	Available	6 Day(s) or more	10	16	10K	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	4 x 1.8
-	1 Piece(s)		8 Day(s) or more	10	16	10 ～ 12	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 604.56	1 Piece(s)	Available	6 Day(s) or more	10	16	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
₹ 752.62	1 Piece(s)	Available	6 Day(s) or more	10	17	10K	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	4 x 1.8
-	1 Piece(s)		8 Day(s) or more	10	17	10 ～ 12	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 629.24	1 Piece(s)	Available	6 Day(s) or more	10	17	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
₹ 801.97	1 Piece(s)	Available	6 Day(s) or more	10	18	10K	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	4 x 1.8
-	1 Piece(s)		8 Day(s) or more	10	18	10 ～ 12	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 678.59	1 Piece(s)	Available	6 Day(s) or more	10	18	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
₹ 801.97	1 Piece(s)	Available	6 Day(s) or more	10	19	10K	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	4 x 1.8
-	1 Piece(s)		8 Day(s) or more	10	19	10 ～ 12	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 678.59	1 Piece(s)	Available	6 Day(s) or more	10	19	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
₹ 863.66	1 Piece(s)	Available	6 Day(s) or more	10	20	10K	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	4 x 1.8
-	1 Piece(s)		8 Day(s) or more	10	20	10 ～ 12	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 740.28	1 Piece(s)	Available	6 Day(s) or more	10	20	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
₹ 950.03	1 Piece(s)	Available	6 Day(s) or more	10	21	10K	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	4 x 1.8
-	1 Piece(s)		8 Day(s) or more	10	21	10 ～ 12	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 826.65	1 Piece(s)	Available	6 Day(s) or more	10	21	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	22	12 ～ 15	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 851.32	1 Piece(s)	Available	6 Day(s) or more	10	22	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	23	12 ～ 15	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 888.34	1 Piece(s)	Available	6 Day(s) or more	10	23	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	24	12 ～ 15	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 925.35	1 Piece(s)	Available	6 Day(s) or more	10	24	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	25	12 ～ 16	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 962.36	1 Piece(s)	Available	6 Day(s) or more	10	25	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		12 Day(s) or more	10	26	12 ～ 16	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 999.38	1 Piece(s)	Available	6 Day(s) or more	10	26	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	28	12 ～ 16	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,110.42	1 Piece(s)	Available	6 Day(s) or more	10	28	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	30	12 ～ 16	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,184.45	1 Piece(s)	Available	6 Day(s) or more	10	30	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	32	15 ～ 20	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,529.00	1 Piece(s)	Available	6 Day(s) or more	10	32	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	34	15 ～ 20	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,332.50	1 Piece(s)	Available	6 Day(s) or more	10	34	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	35	15 ～ 20	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,394.19	1 Piece(s)	Available	6 Day(s) or more	10	35	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	36	15 ～ 20	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,394.19	1 Piece(s)	Available	6 Day(s) or more	10	36	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		12 Day(s) or more	10	38	15 ～ 20	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,480.56	1 Piece(s)	Available	6 Day(s) or more	10	38	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	40	15 ～ 20	Shaft Bore Machined Type	[Steel] S45C Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,542.25	1 Piece(s)	Available	6 Day(s) or more	10	40	-	Pilot Bore Type	[Steel] S45C Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	16	10	Shaft Bore Machined Type	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,024.05	1 Piece(s)	Available	6 Day(s) or more	10	16	-	Pilot Bore Type	[Stainless Steel] SUS304 Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	17	10	Shaft Bore Machined Type	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,048.73	1 Piece(s)	Available	6 Day(s) or more	-	17	-	Pilot Bore Type	[Stainless Steel] SUS304 Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	18	10	Shaft Bore Machined Type	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,085.74	1 Piece(s)	Available	6 Day(s) or more	10	18	-	Pilot Bore Type	[Stainless Steel] SUS304 Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	19	10 ～ 12	Shaft Bore Machined Type	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,098.08	1 Piece(s)	Available	6 Day(s) or more	10	19	-	Pilot Bore Type	[Stainless Steel] SUS304 Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	20	10 ～ 12	Shaft Bore Machined Type	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,098.08	1 Piece(s)	Available	6 Day(s) or more	10	20	-	Pilot Bore Type	[Stainless Steel] SUS304 Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	21	12 ～ 15	Shaft Bore Machined Type	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,110.42	1 Piece(s)	Available	6 Day(s) or more	10	21	-	Pilot Bore Type	[Stainless Steel] SUS304 Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	22	12 ～ 15	Shaft Bore Machined Type	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,159.77	1 Piece(s)	Available	6 Day(s) or more	10	22	-	Pilot Bore Type	[Stainless Steel] SUS304 Equivalent	Standard Pilot Bore	S (Pilot Bore)	-
-	1 Piece(s)		8 Day(s) or more	10	23	12 ～ 15	Shaft Bore Machined Type	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machining Configurable	N (New JIS Key + Tap)	-
₹ 1,196.79	1 Piece(s)	Available	6 Day(s) or more	10	23	-	Pilot Bore Type	[Stainless Steel] SUS304 Equivalent	Standard Pilot Bore	S (Pilot Bore)	-

Product TOP

Basic Information

Sprocket Shape	Shape B	Nominal	25	Number of Strands	Single Strand
Chain Type	RS	Surface Treatment	Not Provided

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

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