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Sprockets-50B Series (Part Numbers)

Volume Discount

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

Part Number

Configured Part Number is shown.

Drawing/Specifications
3D Preview
Part Numbers
Catalog

SP50B

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

BSP50B

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

SSP50B

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

Type	[ M ] Material	[ S ] Surface Treatment
SP50B	S45C Equivalent (Spurs are Induction Hardened)	-
BSP50B	S45C Equivalent (Spurs are Induction Hardened)	Black Oxide
SSP50B	SUS304 Equivalent	-

[ A ] Accessory: Set Screw
(Only for shaft bore specifications)

Specifications

Part Number	−	Shaft Bore Specs.	−	Shaft Bore Dia.
SP50B16	−	N	−	10
BSP50B16	−	N	−	10
SSP50B17	−	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	50	B	9	S N	10		16	17	18	19												46.42	53	34	29	25	5	8.7	6.4	200
			10		10	15	16	17	18	19	20	22										51.37	58	40	34					270
			11		12	15	16	17	18	19	20	22	24	25								56.35	64	45.5	38					330
			12		12	15	16	17	18	19	20	22	24	25	28	30	32					61.34	69	50	44					410
			13		12	15	16	17	18	19	20	22	24	25	28	30	32					66.34	74	51	49					460
			14		12	15	16	17	18	19	20	22	24	25	28	30	32					71.34	79	52	−		7		−	520
			15		12	15	16	17	18	19	20	22	24	25	28	30	32	35	38			76.35	84	57						620
			16		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40		81.37	89	62						720
			17		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40		86.39	94	67						830
			18		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	45	91.42	100	72		28	8			1000
			19		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	45	96.45	105	73						1100
			20		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	45	101.48	110							1200
			21		14						20	22	24	25	28	30	32	35	38	40	45	106.51	115							1200
			22		16						20	22	24	25	28	30	32	35	38	40	45	111.55	120							1300
			23		16						20	22	24	25	28	30	32	35	38	40	45	116.58	125							1300
			24		16						20	22	24	25	28	30	32	35	38	40	45	121.62	130							1400
			25		16								24	25	28	30	32	35	38	40	45	126.66	135							1500
			26		16									25	28	30	32	35	38	40	45	131.7	140							1500
			28		16									25	28	30	32	35	38	40	45	141.79	150							1600
			30		16									25	28	30	32	35	38	40	45	151.87	161							1800
			32		16									25	28	30	32	35	38	40	45	161.96	171							1900
			34		16									25	28	30	32	35	38	40	45	172.05	181							2100
			35		16									25	28	30	32	35	38	40	45	177.1	186							2200

■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)
BSP	50	B	9	N	10		16	17	18	19												46.42	53	34	29	25	5	8.7	6.4	200
			10		10	15	16	17	18	19	20	22										51.37	58	40	34					270
			11		12	15	16	17	18	19	20	22	24	25								56.35	64	45.5	38					330
			12		12	15	16	17	18	19	20	22	24	25	28	30	32					61.34	69	50	44					410
			13		12	15	16	17	18	19	20	22	24	25	28	30	32					66.34	74	51	49					460
			14		12	15	16	17	18	19	20	22	24	25	28	30	32					71.34	79	52	−		7		−	520
			15		12	15	16	17	18	19	20	22	24	25	28	30	32	35	38			76.35	84	57						620
			16		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40		81.37	89	62						720
			17		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40		86.39	94	67						830
			18		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	45	91.42	100	72		28	8			1000
			19		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	45	96.45	105	73						1100
			20		14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	45	101.48	110							1200
			21		14						20	22	24	25	28	30	32	35	38	40	45	106.51	115							1200
			22		16						20	22	24	25	28	30	32	35	38	40	45	111.55	120							1300
			23		16						20	22	24	25	28	30	32	35	38	40	45	116.58	125							1300
			24		16						20	22	24	25	28	30	32	35	38	40	45	121.62	130							1400
			25		16								24	25	28	30	32	35	38	40	45	126.66	135							1500
			26		16									25	28	30	32	35	38	40	45	131.7	140							1500
			28		16									25	28	30	32	35	38	40	45	141.79	150							1600
			30		16									25	28	30	32	35	38	40	45	151.87	161							1800
			32		16									25	28	30	32	35	38	40	45	161.96	171							1900
			34		16									25	28	30	32	35	38	40	45	172.05	181							2100
			35		16									25	28	30	32	35	38	40	45	177.1	186							2200

■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	50	B	10	S N	10	20	22									51.37	58	40	34	25	5	8.7	6.4	270
			11		12	20	22	24	25							56.35	64	45.5	39					330
			12		12	20	22	24	25							61.34	69	50	44					410
			13		12	20	22	24	25							66.34	74	51	49					460
			14		12	20	22	24	25	28	30					71.34	79	52	−		7		−	520
			15		12	20	22	24	25	28	30	32				76.35	84	57						620
			16		14	20	22	24	25	28	30	32		38		81.37	89	62						720
			17		14	20	22	24	25	28	30	32	35	38		86.39	94	67						830
			18		14	20	22	24	25	28	30	32	35	38	40	91.42	100	72		28	8			1000
			19		14	20	22	24	25	28	30	32	35	38	40	96.45	105	73						1100
			20		14	20	22	24	25	28	30	32	35	38	40	101.48	110							1200
			21		14	20			25		30		35		40	106.51	115							1200
			22		16	20			25		30		35		40	111.55	120							1300
			23		16	20			25		30		35			116.58	125							1300
			24		16	20			25		30		35			121.62	130							1400
			25		16	20			25		30		35		40	126.66	135							1500
			26		16	20			25		30		35			131.7	140							1500
			28		16	20			25		30		35		40	141.79	150							1600
			30		16	20			25		30		35		40	151.87	161							1800
			32		16				25		30		35			161.96	171							1900
			35		16				25		30		35			177.1	186							2200

■Shaft Bore Machining Dimension Table

Shaft Bore Dia. D	Keyway b² x t²	Set Screw M
10	3x1.4	4
10K, 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

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; 60; 90

Part Number
SSP50B20-S-14
SSP50B21-N-[20,25,30,35,40]
SSP50B21-S-14
SSP50B22-N-[20,25,30,35,40]
SSP50B22-S-16
SSP50B23-N-[20,25,30,35]
SSP50B23-S-16
SSP50B24-N-[20,25,30,35]
SSP50B24-S-16
SSP50B25-N-[20,25,30,35,40]
SSP50B25-S-16
SSP50B26-N-[20,25,30,35]
SSP50B26-S-16
SSP50B28-N-[20,25,30,35,40]
SSP50B28-S-16
SSP50B30-N-[20,25,30,35,40]
SSP50B30-S-16
SSP50B32-N-[25,30,35]
SSP50B32-S-16
SSP50B35-N-[25,30,35]
SSP50B35-S-16

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Number of Teeth (T)	Shaft Bore Dia. D (or d) (mm)	Material	Type	Shaft Type	Surface Treatment	Bore Specification
MYR 122.65	1 Piece(s)	Available	4 Day(s) or more	10	20	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	21	20 ～ 40	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 203.66	1 Piece(s)	Available	4 Day(s) or more	-	21	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	22	20 ～ 40	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 217.00	1 Piece(s)	Available	4 Day(s) or more	-	22	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	23	20 ～ 35	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 226.70	1 Piece(s)	Available	4 Day(s) or more	-	23	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	24	20 ～ 35	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 239.04	1 Piece(s)	Available	4 Day(s) or more	-	24	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	25	20 ～ 40	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 149.06	1 Piece(s)	Available	4 Day(s) or more	10	25	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	26	20 ～ 35	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 273.91	1 Piece(s)	Available	4 Day(s) or more	-	26	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	28	20 ～ 40	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 297.19	1 Piece(s)	Available	4 Day(s) or more	-	28	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	30	20 ～ 40	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 328.23	1 Piece(s)	Available	4 Day(s) or more	-	30	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	32	25 ～ 35	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 358.02	1 Piece(s)	Available	4 Day(s) or more	-	32	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)
-	1 Piece(s)		6 Day(s) or more	10	35	25 ～ 35	[Stainless Steel] SUS304 Equivalent	Shaft Bore Machined Type	Shaft Bore Machining Configurable	Not Provided	N (New JIS Key + Tap)
MYR 236.50	1 Piece(s)	Available	4 Day(s) or more	10	35	-	[Stainless Steel] SUS304 Equivalent	Pilot Bore Type	Standard Pilot Bore	Not Provided	S (Pilot Bore)

Product TOP

Basic Information

Sprocket Shape	Shape B	Nominal	50	Number of Strands	Single Strand
Chain Type	RS

Configure

111 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Number of Teeth(T)
9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

28

30

32

34

35
Clear
Shaft Bore Dia. D (or d)(mm)
15

16

17

18

19

20

22

24

25

28

30

32

35

38

40

45
Clear
Material
- Steel
  - S45C (Induction Hardened Teeth Tip)
- Stainless Steel
  - SUS304 Equivalent
Clear
Type
- Pilot Bore Type
- Shaft Bore Machined Type
Clear
Shaft Type
- Standard Pilot Bore
- Shaft Bore Machining Configurable
Clear
Surface Treatment
- Not Provided
- Black Oxide
Clear
Bore Specification
- N (New JIS Key + Tap)
- S (Pilot Bore)
Clear
type
- BSP50B
- SP50B
- SSP50B
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

4 Day(s) or Less

6 Day(s) or Less

8 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 .

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Sprockets-50B Series (Part Numbers)

Specifications

Part Number

Basic Information

Configure

Specification/Dimensions

Number of Teeth(T)

Shaft Bore Dia. D (or d)(mm)

Material

Type

Shaft Type

Surface Treatment

Bore Specification

type

CAD

Days to Ship

Specify Alterations

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