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Roller Chain Sprockets - B-Type, Keyless, 35B/40B Series

MISUMI

The strength of shafts is not deteriorated because machining to shafts (i.e. keyways, etc.) is not required. And positioning is easy.

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Technical Information

Keyless Sprockets - 35B/40B Series:Related Image

・Materials

Type	Sprockets		Bushing
	[ M ]Material	[ S ]Surface Treatment	[ M ]Material	Operating Temp.
LFSP35B, LFSP40B	1045 Carbon Steel (Induction Hardened Teeth Tip)	-	1045 Carbon Steel	-20~80°C
BLFSP35B, BLFSP40B		Black Oxide

Specifications

Part Number	-	D	-	Shape
LFSP35B16	-	15	-	A

■35B Series For Chains >> P.1283

Part Number		Shaft Bore Dia. D_H7								Shape	Dp	Do	H	L	t
Type	Number of Teeth	Shaft Bore Dia. D_H7								Shape	Dp	Do	H	L	t
LFSP35B BLFSP35B	12	10								A B	36.80	41	^*30.5	20	4.3
	13	10									39.80	44	^*32
	14	10	12								42.81	47	32
	15	10	12								45.81	51	35
	16	10	12	15	16						48.82	54	37
	18		12	15	16	17					54.85	60	44
	20		12	15	16	17	18	20	22		60.89	66	50
[ ! ]Sprockets with Number of Teeth 12 for A Shape only. Sprockets marked with *have grooves on hub O.D.

■Bushing Performance

Shaft Bore Dia. d	Maximum Allowable Torque N·m {kgf·m}	Allowable Thrust Load kN {kgf}	Screws		Screw Tightening Torque N·m {kgf·m}	Tapped Hole for Removal
			Qty.	Size
10	39{4.0}	5.34 {545}	3	M4x16	4.0{0.41}	M4x2
12	48{4.9}
15	78{7.95}		4	M4x18
16	83{8.5}
17	88{9.0}
18	154{15.7}	8.74 {895}		M5x20	8.3{0.85}	M5x2
20	171{17.4}
22	186{19.16}
25	216{21.8}

[ ! ]In the event that transmissible torque exceeds values in the above table, shaft could slip, resulting in serious danger. Make sure that it is used within the allowable torque range.

■Bushing Dimension Table

Shaft Bore Dia. d	D₁	D₂	D₃	d₁	(L₁)	L₂	ℓ
10	30	22	12	4.5	10.5	16.5	5
12	32	24	14		10.5	16.5	5
15	36	28	17.6		12	22	6
16	37	29	18.6		13	23	7
17	38	30	19.6		13
18	43	33	20.6	5.5	14
20	46	36	23.4
22	48	38	24.6
25	52	42	28.4

· Shaft tolerance g6, shaft surface roughness Ra6.3 are standard.
· When there is key groove machining or D cut on the installation shaft, transmitting torque is reduced by approximately 15% or more.

■40B Series For Chains >> P.1284

Part Number		Shaft Bore Dia. D_H7								Shape	Dp	Do	H	L	t
Type	Number of Teeth	Shaft Bore Dia. D_H7								Shape	Dp	Do	H	L	t
LFSP40B BLFSP40B	12	12	15	16	17					A B	49.07	55	^*40	22	7.2
	13	12	15	16							53.07	59	37
	14	12	15	16	17						57.07	63	42
	15	12	15	16	17	18	20				61.08	67	46
	16		15	16	17	18	20	22			65.10	71	50
	17		15	16	17	18	20	22			69.12	76	54
	18		15	16	17	18	20	22	25		73.14	80	57
	19		15	16	17	18	20	22	25		77.16	84	62
	20		15	16	17	18	20	22	25		81.18	88	67	25
Sprockets marked with * have grooves on hub O.D.

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
BLFSP40B12-[12,15,16,17]-[A,B]
BLFSP40B13-[12,15,16]-[A,B]
BLFSP40B14-[12,15,16,17]-[A,B]
BLFSP40B15-[12,15,16,17,18,20]-[A,B]
BLFSP40B16-[15,16,17,18,20,22]-[A,B]
BLFSP40B17-[15,16,17,18,20,22]-[A,B]
BLFSP40B18-[15,16,17,18,20,22,25]-[A,B]
BLFSP40B19-[15,16,17,18,20,22,25]-[A,B]
BLFSP40B20-[15,16,17,18,20,22,25]-[A,B]
LFSP40B12-[12,15,16,17]-[A,B]
LFSP40B13-[12,15,16]-[A,B]
LFSP40B14-[12,15,16,17]-[A,B]
LFSP40B15-[12,15,16,17,18,20]-[A,B]
LFSP40B16-[15,16,17,18,20,22]-[A,B]
LFSP40B17-[15,16,17,18,20,22]-[A,B]
LFSP40B18-[15,16,17,18,20,22,25]-[A,B]
LFSP40B19-[15,16,17,18,20,22,25]-[A,B]
LFSP40B20-[15,16,17,18,20,22,25]-[A,B]

Minimum order quantity	Days to Ship	RoHS	For Chain No. (Chain Pitch)	Bore Dia. D (or d) (mm)	Number of Teeth (T)	Surface Treatment	Shape Selection
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	12 ～ 17	12	Black Oxide	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	12 ～ 16	13	Black Oxide	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	12 ～ 17	14	Black Oxide	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	12 ～ 20	15	Black Oxide	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 22	16	Black Oxide	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 22	17	Black Oxide	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 25	18	Black Oxide	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 25	19	Black Oxide	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 25	20	Black Oxide	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	12 ～ 17	12	None	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	12 ～ 16	13	None	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	12 ～ 17	14	None	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	12 ～ 20	15	None	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 22	16	None	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 22	17	None	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 25	18	None	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 25	19	None	A / B
1 Piece(s)	10 Days or more	10	40B (1/2" pitch)	15 ～ 25	20	None	A / B

More Information

■Note on Installation
· Tighten the bushing screws after inserting the shaft. (Bushing may deform if the screws are tightened before inserting the shaft.)
· Use torque wrench to tighten screws.
· Do not use screws other than included.
■Installation
① Wipe off the shaft surface and lightly apply oil or grease. (Do not use any oil or grease containing molybdenum type antifriction agent.)
② Please completely wipe off sprocket and bushing contact surfaces also before lubricating with oil or grease. Please lubricate screw and seating surfaces in the same manner.
③ Subassemble sprocket and bushing before inserting into shaft. (Do not tighten the screws on the bushing before inserting into shaft.)
④ After locating, tighten the lock screws using a torque wrench in the diagonal line order, beginning lightly (approx. 1/4 of the predetermined tightening torque).
⑤ Tighten the screws further to an increased torque (approximately 1/2 specified torque).
⑥ Tighten with the predetermined tightening torque.
⑦ Finally, tighten the screws to the listed torque values in a circumferential order.
■Removal
· Be sure the system is completely shut down before starting work.
· Loosen the tightening screws in circumferential order.
· Insert a screw in a screw hole for removal and tighten evenly.
· Repeat "Installation" process for re-installation.

Product TOP

Basic Information

Sprocket Shape	Shape B	Number of Tracks	Single Row	Material	1045 Carbon Steel (Spurs are Induction Hardened)
Bore Style	with Keyless Bushings	Chain Type	RS	Shaft Type	Surface Pressure

Configure

18 Part Numbers

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Completed

Specification/Dimensions

Bore Dia. D (or d)(mm)
10

12

15

16

17

18

20

22

25
Clear
Number of Teeth(T)
12

13

14

15

16

17

18

19

20
Clear
Surface Treatment
- None
- Black Oxide
Clear
Shape Selection
- A
- B
Clear
type
- BLFSP35B
- BLFSP40B
- LFSP35B
- LFSP40B
Clear
For Chain No. (Chain Pitch)
35B (3/8" pitch)

40B (1/2" pitch)
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

10 Days 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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Chains - 40B Series, Pitch 12.7 mm
MISUMI Days to Ship : 8 Days or more
Idler Sprockets - Single/Double Bearings
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MISUMI Unit Example related to this product

Cleaning Chamber

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Tech Support

Technical Support: Tel：+52-442-672-7661 ext. 2 then wait and dial 4
E-mail: soportetecnico@misumimex.com; Mon. - Fri. 8 a.m. - 6 p.m.; Technical Inquiry

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Contact us Monday to Friday: 8:00 am to 6:00 pm (Mexico City time)

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Roller Chain Sprockets - B-Type, Keyless, 35B/40B Series

Specifications

Part Number

More Information

Basic Information

Configure

Specification/Dimensions

Bore Dia. D (or d)(mm)

Number of Teeth(T)

Surface Treatment

Shape Selection

type

For Chain No. (Chain Pitch)

CAD

Days to Ship

Specify Alterations

Additional Products in this Category

Complementary Products

MISUMI Unit Example related to this product

Tech Support

About This Website

About MISUMI Corporation

Contact us Monday to Friday: 8:00 am to 6:00 pm (Mexico City time)