Keyless Sprockets / 35B / 40B Series

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

Type	Sprockets		Bushings
	Material	Surface Treatment	Material	Operating Temp.
LFSP35B, LFSP40B	EN 1.1191 Equiv. (Induction Hardened Teeth Tip)	-	EN 1.1191 Equiv.	-20~80°C
BLFSP35B, BLFSP40B		Black Oxide

Specifications

Part Number	-	Number of Teeth	-	d
LFSP35B16	-	15	-	A

■35B Series For Chains, see Here.

Part Number		Shaft Bore Dia. D_H7								Shape	Dp	Do	H	L	t	Unit Price
Type	Number of Teeth	Shaft Bore Dia. D_H7								Shape	Dp	Do	H	L	t	LFSP35B	BLFSP35B
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

For sprockets with 12 teeth, A Shape only. Sprockets marked with * have grooves on hub O.D.
■40B Series For Chains, see Here.

Part Number		Shaft Bore Dia. D_H7								Shape	Dp	Do	H	L	t	Unit Price
Type	Number of Teeth	Shaft Bore Dia. D_H7								Shape	Dp	Do	H	L	t	LFSP40B	BLFSP40B
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.
■Bushing Dimension/Performance Table

Shaft Bore Dia. D	D₁	D₂	D₃	d₁	(L₁)	L₂	ℓ	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	30	22	12	4.5	10.5	16.5	5	39 {4.0}	5.34 {545}	3	M4x16	4.0 {0.41}	M4x2
12	32	24	14					48 {4.9}
15	36	28	17.6	12	22	6		78 {7.95}		4	M4x18
16	37	29	18.6	13	23	7		83 {8.5}
17	38	30	19.6					88 {9.0}
18	43	33	20.6	5.5	14			154 {15.7}	8.74 {895}		M5x20	8.3 {0.85}	M5x2
20	46	36	23.4					171 {17.4}
22	48	38	24.6					186 {19.16}
25	52	42	28.4					216 {21.8}

• Shaft tolerance g6 and shaft surface roughness Ra6.3 are standard.
• When there is keyway machining or D cut on the installed shaft, transmitting torque is reduced by approximately 15% or more.
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.

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Part Number
BLFSP35B12-10-A
BLFSP35B13-10-[A,B]
BLFSP35B14-[10,12]-[A,B]
BLFSP35B15-[10,12]-[A,B]
BLFSP35B16-[10,12,15,16]-[A,B]
BLFSP35B18-[12,15,16,17]-[A,B]
BLFSP35B20-[12,15,16,17,18,20,22]-[A,B]
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]
LFSP35B12-10-A
LFSP35B13-10-[A,B]
LFSP35B14-[10,12]-[A,B]
LFSP35B15-[10,12]-[A,B]
LFSP35B16-[10,12,15,16]-[A,B]
LFSP35B18-[12,15,16,17]-[A,B]
LFSP35B20-[12,15,16,17,18,20,22]-[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	Standard Shipping Days ?	RoHS	Nominal	Number of Teeth (T)	Shaft Bore Dia. D (or d) (mm)	Surface Treatment	Shape Selection
1	9 Days	10	35	12	10	Black Oxide	A
1	9 Days	10	35	13	10	Black Oxide	A / B
1	9 Days	10	35	14	10 ～ 12	Black Oxide	A / B
1	9 Days	10	35	15	10 ～ 12	Black Oxide	A / B
1	9 Days	10	35	16	10 ～ 16	Black Oxide	A / B
1	9 Days	10	35	18	12 ～ 17	Black Oxide	A / B
1	9 Days	10	35	20	12 ～ 22	Black Oxide	A / B
1	9 Days	10	40	12	12 ～ 17	Black Oxide	A / B
1	9 Days	10	40	13	12 ～ 16	Black Oxide	A / B
1	9 Days	10	40	14	12 ～ 17	Black Oxide	A / B
1	9 Days	10	40	15	12 ～ 20	Black Oxide	A / B
1	9 Days	10	40	16	15 ～ 22	Black Oxide	A / B
1	9 Days	10	40	17	15 ～ 22	Black Oxide	A / B
1	9 Days	10	40	18	15 ～ 25	Black Oxide	A / B
1	9 Days	10	40	19	15 ～ 25	Black Oxide	A / B
1	9 Days	10	40	20	15 ～ 25	Black Oxide	A / B
1	9 Days	10	35	12	10	Not Provided	A
1	9 Days	10	35	13	10	Not Provided	A / B
1	9 Days	10	35	14	10 ～ 12	Not Provided	A / B
1	9 Days	10	35	15	10 ～ 12	Not Provided	A / B
1	9 Days	10	35	16	10 ～ 16	Not Provided	A / B
1	9 Days	10	35	18	12 ～ 17	Not Provided	A / B
1	9 Days	10	35	20	12 ～ 22	Not Provided	A / B
1	9 Days	10	40	12	12 ～ 17	Not Provided	A / B
1	9 Days	10	40	13	12 ～ 16	Not Provided	A / B
1	9 Days	10	40	14	12 ～ 17	Not Provided	A / B
1	9 Days	10	40	15	12 ～ 20	Not Provided	A / B
1	9 Days	10	40	16	15 ～ 22	Not Provided	A / B
1	9 Days	10	40	17	15 ～ 22	Not Provided	A / B
1	9 Days	10	40	18	15 ～ 25	Not Provided	A / B
1	9 Days	10	40	19	15 ～ 25	Not Provided	A / B
1	9 Days	10	40	20	15 ～ 25	Not Provided	A / B

More Information

■Features
• When a keyway is added to a shaft, the position of teeth / keys is fixed. On such a shaft, however, by using Keyless Sprockets, the position of teeth can be adjusted freely and, thereby, phase matching is facilitated.

Example of Use

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Basic information

Sprocket Shape	Shape B	Number of Tracks	Single Row	Type	Keyless Clamping
Material	EN 1.1191 Equiv. (Spurs are Induction Hardened)	Chain Type	RS	Shaft Type	Surface Pressure