U.S.TSUBAKI, INC.
Table 1b. Maximum Allowable Chain Tension
Table 1a. Maximum Allowable Chain Tension Standard and DOUBLE PLUS ® Chain with Snap Covers Units-lbs. (kgf) Chain No. Roller Type
Engineering Class DOUBLE PLUS ® Chain
Units-lbs. (kgf)
Maximum Allowable
Chain No.
Chain Tension
C2030 C2040 C2050 C2060 C2080
RF03075VR RF03100VR
930
(420)
Regular Plastic
120 (56)
200 (90)
310
460
1,190 (540)
(140)
(210)
RF05100VR RF05150VR
2,200
(1,000)
High-Friction Plastic
60
100 (45)
155 (70)
230
595
(28)
(105)
(270)
RF10150VR
3,530 (1,600)
Stainless Steel
60
100 (45)
155 (70)
230
595
(28)
(105)
(270)
RF6025VR RF12200VR
5,950
(2,700)
Steel
220
350
550
840
— —
(100)
(160)
(250)
(380)
RF17200VR
7,720 (3,500)
Note: These factors are for your reference only.
Note: These factors are for your reference only.
Table 2. Coefficient of Friction for DOUBLE PLUS ® Chains
Table 3. Chain Speed Coefficient Chain Speed Chain Speed ft./min. (m/min) Coefficient (K)
TYPE OF DOUBLE PLUS CHAIN
Plastic Roller
Steel Roller
Engineering Class
Coefficient of Friction
Standard High-Friction Lubricated Nonlubricated Lubricated Nonlubricated
Coefficient of friction f 1 between chain and rail
0~50 (0~15)
1.0
0.08
0.08
0.05
0.05
0.05
0.05
when conveying
50~100 (15~30)
1.2
Coefficient of friction f 2 between chain and conveyed 0.10 object when accumulating
Note: These factors are for your reference only. For speeds greater than those indicated, consult U.S. Tsubaki.
0.15
0.10
0.15
0.10
0.15
Coefficient of friction f 3 between chain and rail when accumulating
0.20
0.25
0.10
0.25
0.15
0.20
Note: These factors are for your reference only. We suggest oiling steel roller type.
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