Steel, Zinc Plated

GN 353 Buffers

Type

E	With internal thread
S	With threaded stud

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d₁	h	d₂	Length l Type S	s	t Type E	Spring rate ≈ N/mm Hardness 40	Hardness 55	Hardness 70	max. load in N Hardness 40	Hardness 55	Hardness 70	max. travel ≈ in mm

10	10	M 5	12	1,2	5	14	20	40	46	59	113	3
20	15	M 6	18	2	6	30	49	78	130	195	320	4
20	24	M 6	18	2	6	14	22	55	82	130	330	6
25	20	M 6	18	2	6	16	38	96	84	190	495	5
30	30	M 8	18	2	8	25	35	84	190	260	630	7,5
30	36	M 8	20	2	8	20	36	72	180	320	650	9
35	40	M 8	23	2	8	26	30	63	260	300	630	10
50	50	M 10	28	2	10	54	78	90	675	970	1120	12,5
50	61	M 8	28	2	8	32	39	100	490	600	1520	15,25
50	68	M 10	28	2	10	52	52	115	890	890	1950	17
70	58	M 12	37	3	12	82	110	140	1150	1520	1990	14
75	89	M 12	37	3	12	66	98	125	1330	1960	2540	20

Specification

Natural rubber (NR)

Black
Vulcanized to the cover plates
Temperature resistant up to 80 °C
Hardness Shore A ±5
Soft40
Medium55
Hard70

Cover plates, threaded bushings, threaded studs
Steel
zinc-plated, blue passivated

Elastomer Characteristics

RoHS

On request

Rubber in gray

Information

Buffers GN 353 are used as end-stop buffers, e .g. for conveyor trolleys.

They absorb most of the kinetic energy developing on impact. They act as dampers and prevent damaging shock and rebound. They also act as sound dampers.

The parabolic shape of these buffers generates progressive resilience characteristics: impact and shock effects are absorbed gentler.