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  4. Chains, sprockets
  5. Sprockets, duplex, 1/2" x 5/16" DIN ISO 606, ready to install
  6. Sprockets, duplex, 1/2" x 5/16" DIN ISO 606, ready to install, Form A
    7. 22250-05-2012051602130
Designation
Sprocket
Version 1
2x
Version 2
Ready to install
DIN ISO
DIN ISO 606
Form
A
Main material
steel
Surface finish body
bright
D1=Pitch circle diameter
85,22
N=No. of teeth
21
B1
7
B2
21
B3
8
C
1,3
D
89,7
D2
68
D3
30
D4
M6
Division inches
1/2X5/16
Division mm
12,7 x 7,75
ISO No.
08 B-2
L
42
R
13
T2
3,3
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
Steel C45.
Version
Bright.
Teeth inductively hardened ~HRC 50.
Note
Ready to install sprockets with hub on one side for DIN ISO 606 duplex roller chains. Teeth are milled and induction-hardened.
DIN 6885 / BS 4235 keyway. The keyway is aligned with the tooth tip.
With two grub screws. One thread aligned to the centre of the keyway, the other offset by 90°.
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