Rubber Bumpers - Through Hole/ No Hole Type

 

Through Hole Type	No Hole Type	[ M ]Material	[ H ]Hardness	Color
RBXN	RBCXN	Nitrile Rubber (NBR)	Shore A70	Black
RBXC	RBCXC	Chloroprene Rubber (CR)	Shore A65	Black
RBXU	RBCXU	Low Elasticity Rubber (HANENITE®GP-35LE)	Shore A33	Black
RBXS	RBCXS	Silicon Rubber (SI)	Shore A70	Light Gray
RBXA	RBCXA	Silicon Rubber (SI)	Shore A50	Milky White
RBXF	RBCXF	Fluoro Rubber (FPM)	Shore A80	Black

[ ! ]HANENITE^® is a registered trademark of Naigai Rubber Industry Co., Ltd.
[ ! ]The milky white color of silicone rubber shore A 50 is translucent.

Rubber Characteristic Value

Item	Unit	Nitrile Rubber		Chloroprene Rubber	Low Elasticity Rubber		Silicon Rubber(SI)		Fluororubber
		（NBR）		（CR）	（HANENITE®）		Standard		（FPM)
Hardness	Shore A	70	50	65	49	33	70	50	80	60
Specific Gravity	ー	2	1	2	1.27	1.26	1		2	2
Tensile Strength*	Mpa	13	4	13	8.5	11.9	7	9	13	11
Elongation	％	370	400	460	630	790	300	330	330	270
Volume Resistivity*	（Ω・cm）	1010 or Less	109 or Less	108 or Less	ー	ー	1013 or Less	1014 or Less	106 or Less	1011 or Less
Maximum Operating Temperature	℃	90	90	100	60	60	200		230	230
Temperature of Continuous Use	℃	80	80	80	30	30	150		210	210
Low Temp. Resistance	℃	-10	-10	－35	18	19	－70		-10	-10

[ ! ]Listed values are not guaranteed values but reference values.
*Volume resistivity is tested based on the JIS Standard K6271-1.
*The characteristic values of tensile strength and elongation are tested based on the JIS Standard K6251