Ultra Super Series
ULTRA SUPER Series offer longer wear life, greater shock load resistance (170%) and higher tensile strength (150%) than any other Tsubaki roller chain. The pins are through-hardened and the pin holes are critically formed and ball drifted. The diameter
of the pins has been increased. This chain is well suited for applications where there are space limitations. The heavy duty construction of the ULTRA SUPER Series chain allows it to replace chains up to two pitch sizes larger ANSI G7 Series chain. It is best suited for low speed operating conditions up to 50 m/min.
ANSI Ultra Super Heavy Duty Roller Chain
Dimensions-mm
| Tsubaki Chain No. |
Pitch
p |
Roller Diameter
d1 |
Inner Width
b1 |
| RF100-US-1 |
31.75 |
1 1/4" |
19.05 |
19.05 |
| RF120-US-1 |
38.10 |
1 1/2" |
22.23 |
25.40 |
| RF140-US-1 |
44.45 |
1 3/4" |
25.40 |
25.40 |
| RF160-US-1 |
50.80 |
2" |
28.58 |
31.75 |
Dimensions in mm
| Tsubaki Chain No. |
Pin |
Link Plate |
Diameter
d2 |
Length
L1 |
Length
L2 |
Thickness
T |
Height
H (max.) |
| RF100-US-1 |
10.32 |
22.35 |
25.35 |
4.80 |
30.10 |
| RS120-US-1 |
12.28 |
27.55 |
31.55 |
5.60 |
36.20 |
| RS140-US-1 |
13.97 |
29.50 |
34.20 |
6.40 |
42.20 |
| RS160-US-1 |
15.62 |
34.50 |
40.20 |
7.10 |
48.20 |
Dimensions in mm
| Tsubaki Chain No. |
Min. Tensile Strength acc. to Tsubaki
kN |
Av. Tensile Strength acc. to Tsubaki
kN |
Approx. Mass
kg/m |
| RS100-US-1 |
149.0 |
172.0 |
5.07 |
| RS120-US-1 |
213.0 |
245.0 |
7.22 |
| RS140-US-1 |
273.0 |
314.0 |
9.24 |
| RS160-US-1 |
341.0 |
392.0 |
12.19 |
- Standard ANSI sprockets can be used if the sprocket teeth have been hardened.
- Steel grade of sprockets must be C45 or higher.
- Offset links are not available.
- Multi-strand chains are not available.
- Press-fitted type connecting links are supplied.
- Pins are quad riveted.