Tensioner Units

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Part Numbers
Catalog

<Applicable Idlers>
• Chain Idlers Here, 1552
• Idlers with teeth for timing belts.
Here~1456
• Idlers for Timing Belts Here
• Idlers for Flat Belts Here

Type	Material				Surface Treatment
	Attachment Plate	Tension Pin	Slide Plate	Tension Block
TNSR	EN 1.0038 Equiv.	EN 1.1191 Equiv.	EN 1.1191 Equiv. (Precision Casting)	EN 1.0038 Equiv.	Black Oxide
TNSN					Electroless Nickel Plating

Specifications

Part Number	-	Y	-	F
TNSR20 TNSN15	- -	Y15 Y20	- -	F12 F32

■Tension Pin Dimension Details

D_g6	V	d	t	P	H	W	M (Coarse)
10	13	9.6	5	13	15	11	M8
12	15	11.5	5	13	15	13	M8
15	20	14.3	8	16	20	17	M10
17	22	16.2		17	24	19	M12
20	24	19		17	24	22	M12

■TNSR Accessory

D_g6	Adjustment Screw	Nut	(2 pcs.) Hex Socket Head Cap Screw	Nut	(2 pcs.) Hex Socket Head Cap Screw	(2 pcs.) Flat Washer	C Type Retaining Ring
10	M6x55	LBNR6	CB4-16	LBNR8	CB5-10	PWF5	STWN10
12							STWN12
15	M8x60	LBNR8	CB5-22	LBNR10	CB5-14		STWN15
17				LBNR12	CB6-16	PWF6	STWN17
20							STWN20

■TNSN Accessory

D_g6	Adjustment Screw	Nut	(2 pcs.) Stainless Steel Hex Socket Head Cap Screw	Nut	(2 pcs.) Stainless Steel Hex Socket Head Cap Screw	(2 pcs.) Flat Washer	C Type Retaining Ring
10	M6x55	SLBNR6	M4x16	SLBNR8	M5x10	SPWF5	STWS10
12							STWS12
15	M8x60	SLBNR8	M5x22	SLBNR10	M5x14		STWS15
17				SLBNR12	M6x16	SPWF6	STWS17
20							STWS20

Part Number		1mm Increment		ST (Stroke)	A	B	T	J	C	E	G	K	S	X	Z	N	Unit Price
Type	D_g6	Y	F														TNSR	TNSN
TNSR TNSN	10	10~50	8~50	25	120	50	6	24	55	35	42.0	22.5	57.5	14	21	5.5
	12
	15	12~60	10~50	25	125	55	9	31	57.5	40	48.5	25.5	60	19	29	6.6
	17			30	140	60		30	70			27	62.5
	20

When D=10 or 12, Y+F≤80
When D=15 ~ 20, Y+F≤120
For the F dim., specify a value identical to the width of the bearing included with the current idler. (Tolerance of F dim. : 0~+0.1mm)

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Part Number
TNSN10-Y[10-50/1]-F[8-50/1]
TNSN12-Y[10-50/1]-F[8-50/1]
TNSN15-Y[12-60/1]-F[10-50/1]
TNSN17-Y[12-60/1]-F[10-50/1]
TNSN20-Y[12-60/1]-F[10-50/1]
TNSR10-Y[10-50/1]-F[8-50/1]
TNSR12-Y[10-50/1]-F[8-50/1]
TNSR15-Y[12-60/1]-F[10-50/1]
TNSR17-Y[12-60/1]-F[10-50/1]
TNSR20-Y[12-60/1]-F[10-50/1]

Minimum order quantity	Standard Shipping Days ?	RoHS	Surface Treatment	D (mm)	F (mm)	Y (mm)
1	12 Days	10	Electroless Nickel Plating	10	8 ～ 50	10 ～ 50
1	12 Days	10	Electroless Nickel Plating	12	8 ～ 50	10 ～ 50
1	12 Days	10	Electroless Nickel Plating	15	10 ～ 50	12 ～ 60
1	12 Days	10	Electroless Nickel Plating	17	10 ～ 50	12 ～ 60
1	12 Days	10	Electroless Nickel Plating	20	10 ～ 50	12 ～ 60
1	12 Days	10	Black Oxide	10	8 ～ 50	10 ～ 50
1	12 Days	10	Black Oxide	12	8 ～ 50	10 ～ 50
1	12 Days	10	Black Oxide	15	10 ～ 50	12 ～ 60
1	12 Days	10	Black Oxide	17	10 ～ 50	12 ～ 60
1	12 Days	10	Black Oxide	20	10 ～ 50	12 ～ 60