Idler Sprocket Japanese Standard Single Bearing

Brand :

MISUMI

Caution

Product Description

・ Product type: Idler Sprocket Japanese Standard Single Bearing, C-DRC series.
・ Applicable nominal chain no.: 25, 35, 40, 60, 80
・ Number of Teeth: 9, 11, 17, 19, 25
・ Shaft bore diameter [mm]: 10, 15, 17, 20
・ Sprocket Idler is a sprocket with a bearing inside. Used to change the direction of rotation, tension the chain, and adjust pressure angles. It helps optimize force distribution in the gear train without altering transmission relationships.
・ This is an economy item; The price is cheaper than the MISUMI standard product.

Product Overview of Idlers

■Sprocket Idlers is a sprocket with a built-in bearing. Its main function is to change the rotating direction of the driven wheel, tension the chain, adjust the pressure angle, and so on.
The Idlers is a part of the gear train that plays a transitional role. It does not change the transmission relationship. It is to make the force of the gear train more reasonable or to adapt to the layout of the entire transmission system.

■Only Idlers sprockets and chains with the same specifications can be used in combination.
This series is ISO standard 04C/ 06C/ 08A/ 10A/12A/16A (ANSI specifications 25B/ 35B/40B/50B/60B/80B) sprocket idlers.
■Do not use them with 04B/ 05B/ 06B/ 08B/ 10B/ 12B/ 16B series Idlers sprockets and chains, which may cause the chain sprocket mechanism to fail to operate normally!

Dimensional Drawing of Idlers

Ordinary ISO standard 04C/ 06C/ 08A/ 10A/12A/16A (ANSI specifications 25B/ 35B/ 40B/50B/60B/80B) sprocket Idlers,
Idler Dimensional Drawing

Specifications Overview of Idlers

Features: tension is applied to the chain, preventing the chain vibration, noise and poor engagement of the Idlers sprocket.
This series is ISO standard 04C/ 06C/ 08A/ 10A/12A/16A (ANSI specifications 25B/ 35B/40B/50B/60B/80B) sprocket Idlers, which can be used with our 25/ 35/40/50/60 /80 chains
■Do not use them with 08B/ 10B/ 12B/ 16B series chains, which may cause the chain sprocket mechanism to fail to operate normally!

Part Number of Idlers		Number of Teeth	d	Dp	Do	T	HD	L	Bearing			Applicable size of Idlers pin	Approximate weight (kg)
Type	No.								Part No.	b	Cr (dynamic rated load) kN	Single liner type bearing	DRC
Type	No.								Part No.	b	Steel	Single liner type bearing	DRC
Single bearing C-DRC	25	17	6	34.56	38	2.8	27	12	606ZZ	6	1.95	-	0.04	-
		19	8	38.58	42		31	13	608ZZ	7	3.3		0.08
		19	10	38.58	42		31	13	6900ZZ	6	2.7		0.08
	35	16	10	48.82	54	4.3	38	14	6000ZZ	8	4.55	IDP6000S	0.11
		16	12	48.82	54		38	14	6001ZZ	8	5.1	IDP6001S	0.1
		18	15	54.85	60		44	17	6202ZZ	11	7.65	IDP6202S	0.16
		25	20	76	81		60	21	6204ZZ	14	12.8	IDP6204S	0.33
	40	13	10	53.07	59	7.2	38	14	6000ZZ	8	4.55	IDP6000S	0.15
		13	12	53.07	59		38	14	6001ZZ	8	5.1	IDP6001S	0.14
		15	15	61.08	67		44	17	6202ZZ	11	7.65	IDP6202S	0.19
		17	17	69.12	76		53	19	6203ZZ	12	9.55	IDP6203S	0.3
		19	20	77.16	84		60	21	6204ZZ	14	12.8	IDP6204S	0.4
	50	12	12	61.34	69	8.7	43	16	6201ZZ	10	6.8	IDP6201S	0.21
		13	15	66.34	74		44	17	6202ZZ	11	7.65	IDP6202S	0.23
		15	17	76.35	84		53	19	6203ZZ	12	9.55	IDP6203S	0.37
		17	20	86.39	94		60	21	6204ZZ	14	12.8	IDP6204S	0.49
	60	11	12	67.62	76	11.7	44	16	6201ZZ	10	6.8	IDP6201S	0.26
		11	15	67.62	76		44	17	6202ZZ	11	7.65	IDP6202S	0.27
		14	20	85.61	95		60	21	6204ZZ	14	12.8	IDP6204S	0.56
	80	9	15	74.27	85	14.6	44	17	6202ZZ	11	7.65	IDP6202S	0.38
	80	11	20	90.16	102	14.6	60	21	6204ZZ	14	12.8	IDP6204S	0.69

Product Feature of Idlers

■Idlers Sprocket chain drive has the following features compared with gear drive and belt drive:
1. Idlers Multi-tooth load bearing, safe and reliable;
2. Flexible transmission, absorbing shock and vibration;
3. Large center distance range, low manufacturing and mounting accuracy requirements;
4. Compared with belt drive, the transmission ratio is accurate and the transmission efficiency is higher, suitable for high temperature.

■Two main purposes of the chain:
1. Idlers Connect the motor for transmission
2. Place the workpiece directly or indirectly on the chain for transfer

Example Use of Idlers

Used for driving power
A mechanism that can convert motor power into roller rotation by combining multiple Idlers sprockets and chains

Used for transporting workpieces of Idlers
A chain conveyor frame with high versatility using flat profiles and chain guides

Used for transporting workpieces of Idlers
A mechanism used to mount accessories on the chain, and extract and transport workpieces

Precautions of Idlers

Usage Method of Idlers

How to mount the roller chain

(A) Axis configuration
■Horizontal
Even when the two axes are arranged horizontally, the rotation direction of the axis must be considered.
The examples (2) and (3) in the figure show that when the chain is stretched, the disengagement between the Idlers sprocket teeth and the chain is not smooth and may bite.
In particular, the upper and lower chains in (3) will contact each other, so an Idlers is required.

■Vertical Idlers
If the chain is stretched, slack as shown in (5) will occur, and
when a small Idlers sprocket is used on the lower side, the chain may fall off. Therefore, please use it at an angle of 60 or less as shown in (4).
When it is necessary to use it vertically due to the mechanism or space, it is recommended to put the large sprocket on the lower side, and
use the idler on the outside or inside as shown in (6).

(B) Deflection Idlers
Deflection is generally about 4% of the shaft spacing, and about 2% in the following cases.
a. Vertical transmission or close to vertical transmission
b. Shaft spacing is more than 1m
c. When frequent heavy load starting and stopping are required
d. When reverse rotation is required

(C)When the load changes Idlers
If a tension adjuster is mounted on the tension side or slack side of the chain to provide initial tension in advance, it will eliminate vibration and reduce noise during operation.

Related Products of Idlers

Idlers Sprocket 60B

Specification Table of Idlers

Part Number of Idlers		Number of Teeth	d	Dp	Do	T	HD	L	Bearing			Applicable size of Idlers pin	Approximate weight (kg)
Type of Idlers	No.								Part No.	b	Cr (dynamic rated load) kN	Single liner type bearing	DRC	DRCS
Type of Idlers	No.								Part No.	b	Steel	Single liner type bearing	DRC	DRCS
Single Bearing DRC DRCS Double Bearing DRCW	25	17	6	34.56	38	2.8	27	12	606ZZ	6	1.95	-	0.04	-
		19	8	38.58	42		31	13	608ZZ	7	3.3		0.08
		19	10	38.58	42		31	13	6900ZZ	6	2.7		0.08
	35	16	10	48.82	54	4.3	38	14	6000ZZ	8	4.55	IDP6000S	0.11	0.12
		16	12	48.82	54		38	14	6001ZZ	8	5.1	IDP6001S	0.1	0.11
		18	15	54.85	60		44	17	6202ZZ	11	7.65	IDP6202S	0.16	0.17
		25	20	76	81		60	21	6204ZZ	14	12.8	IDP6204S	0.33	0.34
	40	13	10	53.07	59	7.2	38	14	6000ZZ	8	4.55	IDP6000S	0.15	0.16
		13	12	53.07	59		38	14	6001ZZ	8	5.1	IDP6001S	0.14	0.15
		15	15	61.08	67		44	17	6202ZZ	11	7.65	IDP6202S	0.19	0.2
		17	17	69.12	76		53	19	6203ZZ	12	9.55	IDP6203S	0.3	0.31
		19	20	77.16	84		60	21	6204ZZ	14	12.8	IDP6204S	0.4	0.41
	50	12	12	61.34	69	8.7	43	16	6201ZZ	10	6.8	IDP6201S	0.21	0.22
		13	15	66.34	74		44	17	6202ZZ	11	7.65	IDP6202S	0.23	0.24
		15	17	76.35	84		53	19	6203ZZ	12	9.55	IDP6203S	0.37	0.38
		17	20	86.39	94		60	21	6204ZZ	14	12.8	IDP6204S	0.49	0.5
	60	11	12	67.62	76	11.7	44	16	6201ZZ	10	6.8	IDP6201S	0.26	-
		11	15	67.62	76		44	17	6202ZZ	11	7.65	IDP6202S	0.27
		14	20	85.61	95		60	21	6204ZZ	14	12.8	IDP6204S	0.56
	80	9	15	74.27	85	14.6	44	17	6202ZZ	11	7.65	IDP6202S	0.38	-
	80	11	20	90.16	102	14.6	60	21	6204ZZ	14	12.8	IDP6204S	0.69	-