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Denominação
Coroa
Versão 1
simples
Versão 2
pré-furado
DIN ISO
DIN ISO 606
Material do corpo básico
aço
Superfície Corpo básico
superfície sem tratamento
D1=Diâmetro do círculo primiti
505,65
N=Quantidade de dentes
50
B1
18,5
C
3,5
D
521,6
D3 máx.
30
Divisão polegada (PxB1)
1 1/4X3/4
Nº ISO
20 B-1
Passo mm
31,75 x 19,56
R
32
UNSPSC Code
31161612
~ CONFLICT MINERALS 3TG status
no intentional 3TG
~ CP65 substance 2 cancer
soots, tars, and mineral oils
~ PFAS free?
yes
~ REACH SVHC-free?
yes
~ RoHS conformity
yes, without exemption
~ TSCA 6(H) conformity
yes

Description

Material
Low-carbon steel.
Version
Bright, not hardened (cannot be hardened).
Note
Sprockets for DIN ISO 606 roller chains.
The disc sprockets have a centre bore or are pre-drilled (this can vary due to production methods). For this reason, the dimension D3 max. given in the table is the maximum diameter of the bore that the disc sprockets are supplied with. This pilot hole/centre bore can be customised with a reamed hole, reamed hole with keyway or a tapped hole by the customer. Alternatively, bushes can be fitted by the customer to reduce the diameter.
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