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Roller Chain Sprockets - B-Type, 50B Series

Volume Discount

MISUMI

Sprockets with shaft bore and keyway already machined.

inCAD Components

Part Number

Configured Part Number is shown.

・Materials

Type	[ M ] Material	[ S ] Surface Treatment
SP50B	1045 Carbon Steel Equivalent (Induction Hardened Teeth Tip)	-
BSP50B	1045 Carbon Steel Equivalent (Induction Hardened Teeth Tip)	Black Oxide
SSP50B	304 Stainless Steel Equivalent	-

[ A ] Accessories: Set Screw(Only for shaft bore specifications Sprockets - 50B Series:Related Image

)

Specifications

Part Number	-	Bore Specification	-	Shaft Bore Dia.
SP50B16 SSP50B18	- -	N S	- -	25 14

Part Number		Shaft Bore Specs.	Shaft Bore Dia.																	Dp	Do	H	GD	L	ℓ	Mass (g)	Unit Price
Type	Number of Teeth	Shaft Bore Specs.	S Specification (D_H8)	N Specification (D_H7)																Dp	Do	H	GD	L	ℓ	Mass (g)	S Specification	N Spec. (In Stock)	N Spec. (Other than In Stock)
SP50B	9	S N	10		16	17	18	19												46.42	53	34	29	25	5	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		-
BSP50B (BSP is not compliant with S Spec.)	9	N	-		16	17	18	19												46.42	53	34	29	25	5	200	-	-
	10			15	16	17	18	19	20	22										51.37	58	40	34			270	-	-
	11			15	16	17	18	19	20	22	24	25								56.35	64	45.5	38			330	-	-
	12			15	16	17	18	19	20	22	24	25	28	30	32					61.34	69	50	44			410	-	-
	13			15	16	17	18	19	20	22	24	25	28	30	32					66.34	74	51	49			460	-
	14			15	16	17	18	19	20	22	24	25	28	30	32					71.34	79	52	-		7	520	-	-
	15			15	16	17	18	19	20	22	24	25	28	30	32	35	38			76.35	84	57				620	-	-
	16			15	16	17	18	19	20	22	24	25	28	30	32	35	38	40		81.37	89	62				720	-
	17			15	16	17	18	19	20	22	24	25	28	30	32	35	38	40		86.39	94	67				830	-	-
	18			15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	45	91.42	100	72		28	8	1000	-
	19			15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	45	96.45	105	73				1100	-	-
	20			15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	45	101.48	110					1200	-	-
	21								20	22	24	25	28	30	32	35	38	40	45	106.51	115					1200	-	-
	22								20	22	24	25	28	30	32	35	38	40	45	111.55	120					1300	-	-
	23								20	22	24	25	28	30	32	35	38	40	45	116.58	125					1300	-	-
	24								20	22	24	25	28	30	32	35	38	40	45	121.62	130					1400	-	-
	25										24	25	28	30	32	35	38	40	45	126.66	135					1500	-	-
	26											25	28	30	32	35	38	40	45	131.7	140					1500	-	-
	28											25	28	30	32	35	38	40	45	141.79	150					1600	-	-
	30											25	28	30	32	35	38	40	45	151.87	161					1800	-	-
	32											25	28	30	32	35	38	40	45	161.96	171					1900	-	-
	34											25	28	30	32	35	38	40	45	172.05	181					2100	-	-
	35											25	28	30	32	35	38	40	45	177.1	186					2200	-	-
SSP50B	10	S N	10						20	22										51.37	58	40	34	25	5	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		-

[ ! ]For the Number of Teeth: 11~13 and the Shaft Dia.: 24mm or less, the M6 set screw is applicable.

■Shaft Bore Specifications

Shaft Bore Dia. D	Keyway b₂xt₂	Set Screw M
15~17	5x2.3	6
18~22	6x2.8	6
24~30	8x3.3	8
32~38	10x3.3	8
40	12x3.3	8
45	14x3.8	10

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
BSP50B9-N-[16,17,18,19]
BSP50B10-N-[15,16,17,18,19,20,22]
BSP50B11-N-[15,16,17,18,19,20,22,24,25]
BSP50B12-N-[15,16,17,18,19,20,22,24,25,28,30,32]
BSP50B13-N-[15,16,17,18,19,20,22,24,25,28,30,32]
BSP50B14-N-[15,16,17,18,19,20,22,24,25,28,30,32]
BSP50B15-N-[15,16,17,18,19,20,22,24,25,28,30,32,35,38]
BSP50B16-N-[15,16,17,18,19,20,22,24,25,28,30,32,35,38,40]
BSP50B17-N-[15,16,17,18,19,20,22,24,25,28,30,32,35,38,40]
BSP50B18-N-[15,16,17,18,19,20,22,24,25,28,30,32,35,38,40,45]
BSP50B19-N-[15,16,17,18,19,20,22,24,25,28,30,32,35,38,40,45]
BSP50B20-N-[15,16,17,18,19,20,22,24,25,28,30,32,35,38,40,45]
BSP50B21-N-[20,22,24,25,28,30,32,35,38,40,45]
BSP50B22-N-[20,22,24,25,28,30,32,35,38,40,45]
BSP50B23-N-[20,22,24,25,28,30,32,35,38,40,45]
BSP50B24-N-[20,22,24,25,28,30,32,35,38,40,45]
BSP50B25-N-[24,25,28,30,32,35,38,40,45]
BSP50B26-N-[25,28,30,32,35,38,40,45]
BSP50B28-N-[25,28,30,32,35,38,40,45]
BSP50B30-N-[25,28,30,32,35,38,40,45]
BSP50B32-N-[25,28,30,32,35,38,40,45]
BSP50B34-N-[25,28,30,32,35,38,40,45]
BSP50B35-N-[25,28,30,32,35,38,40,45]

Minimum order quantity	Days to Ship	RoHS	Material	Bore Dia. D (or d) (mm)	Bore Style	Number of Teeth (T)	Shaft Type	Surface Treatment	Hole Specifications
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	16 ～ 19	with Finished Bore	9	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 22	with Finished Bore	10	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 25	with Finished Bore	11	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 32	with Finished Bore	12	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 32	with Finished Bore	13	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 32	with Finished Bore	14	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 38	with Finished Bore	15	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 40	with Finished Bore	16	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 40	with Finished Bore	17	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 45	with Finished Bore	18	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 45	with Finished Bore	19	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	15 ～ 45	with Finished Bore	20	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	20 ～ 45	with Finished Bore	21	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	20 ～ 45	with Finished Bore	22	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	17 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	20 ～ 45	with Finished Bore	23	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	20 ～ 45	with Finished Bore	24	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	24 ～ 45	with Finished Bore	25	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	25 ～ 45	with Finished Bore	26	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	25 ～ 45	with Finished Bore	28	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	25 ～ 45	with Finished Bore	30	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	25 ～ 45	with Finished Bore	32	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	25 ～ 45	with Finished Bore	34	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)
1 Piece(s)	15 Days or more	10	[Steel] 1045 Carbon Steel (Spurs are Induction Hardened)	25 ～ 45	with Finished Bore	35	Shaft Bore Machining Configurable	Black Oxide	N (New JIS Key + Tap)

Product TOP

Basic Information

Sprocket Shape	Shape B	For Chain No. (Chain Pitch)	50B (5/8" pitch)	Number of Tracks	Single Row
Chain Type	RS

Configure

23 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Material
- Steel
  - 1045 Carbon Steel (Spurs are Induction Hardened)
- Stainless Steel
  - 304 Stainless Steel
Clear
Bore Dia. D (or d)(mm)
15

16

17

18

19

20

22

24

25

28

30

32

35

38

40

45
Clear
Bore Style
- with Machinable Pilot Bore
- with Finished Bore
Clear
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 Type
- Standard Pilot Hole
- Shaft Bore Machining Configurable
Clear
Hole Specifications
- N (New JIS Key + Tap)
- S (Pilot Hole)
Clear
type
- BSP50B
- SP50B
- SSP50B
Clear
Surface Treatment
- None
- Black Oxide
Clear
CAD
- 2D
- 3D
Clear