Specs/CAD
Part Number | Nominal a×l | Bolt d | Bolt a1 | Bolt a | Bolt f | Bolt g | Bolt m | Bolt l | Washer w | Washer t | Bush p | Bush q | Tightening torque (N・m) | Price (USD) |
Add to Cart |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
F1-SET | 8×50 | M8 | 9 | 8 | 10 | 4 | 17 | 50 | 14 | 3 | 18 | 14 | 11 | - | RFQ |
F2-SET | 10×56 | M10 | 12 | 10 | 13 | 4 | 19 | 56 | 18 | 3 | 22 | 16 | 22 | - | RFQ |
F3-SET | 14×64 | M12 | 16 | 14 | 17 | 5 | 21 | 64 | 25 | 3 | 31 | 18 | 39 | - | RFQ |
F4-SET | 20×85 | M20 | 22.4 | 20 | 24 | 5 | 26.4 | 85 | 32 | 4 | 40 | 22.4 | 190 | - | RFQ |
F5-SET | 25×100 | M24 | 28 | 25 | 30 | 6 | 32 | 100 | 40 | 4 | 50 | 28 | 330 | - | RFQ |
F6-SET | 28×116 | M24 | 31.5 | 28 | 32 | 6 | 44 | 116 | 45 | 4 | 56 | 40 | 330 | - | RFQ |
F7-SET | 35.5×150 | M30 | 40 | 35.5 | 41 | 8 | 61 | 150 | 56 | 5 | 71 | 56 | 650 | - | RFQ |
F7L-SET | 35.5×174 | M30 | 40 | 35.5 | 41 | 8 | 61 | 174 | 56 | 5 | 71 | 56 | 650 | - | RFQ |
F8-SET | 45×240 | M42 | 50 | 45 | 50 | 10 | 87 | 240 | 71 | 7 | 85 | 80 | 1800 | - | RFQ |
Material/Finish
FCL | FCLS | |
---|---|---|
Joint Main Unit |
FC200 or more | S25C or more |
Nut | Equivalent to SS400 Trivalent Chromate Treatment |
Equivalent to SS400 Trivalent Chromate Treatment |
Spring Lock Washers |
SWRH62 Trivalent Chromate Treatment |
SWRH62 Trivalent Chromate Treatment |
Bushing | NBR B (12) -j1a1〔HS (JIS A)=70〕 |
NBR B (12) -j1a1〔HS (JIS A)=70〕 |
Washer | Equivalent to SS400 Trivalent Chromate Treatment |
Equivalent to SS400 Trivalent Chromate Treatment |
Bolt | Equivalent to SS400 Trivalent Chromate Treatment |
Equivalent to SS400 Trivalent Chromate Treatment |
Characteristics
- The most popular flexible shaft coupling in Japan that is compliant with JIS B 1452-1991 "Flexible Flanged Shaft Couplings".
- Simple structure comprised of a flange and coupling bolts. Easy-to-mount.
- Bushings can be replaced just by removing coupling bolts. This makes maintenance and service easy.
- While it absorbs misalignment such as eccentricity and argument, it prevents noise by absorbing torsional vibration. It will not transmit thrust load, either.
- Two types are available: Cast Iron FCL and Carbon Steel FCLS.
Product Standard
The product standard of the flexible flanged shaft couplings is compliant with JIS B 1452-1991 "Flexible Flanged Shaft Couplings".Allowable value of the run-out of the joint outer diameter to the shaft hole center, and that of the joint surface near the outer diameter
0.03mmAllowance of the bolt hole pitch circle diameter and the bushing insertion hole pitch circle diameter, allowance of the pitch, and the run-out tolerance to the shaft bore center
Pitch Circle Diameter | Pitch Circle Diameter and Pitch Allowance |
Pitch Circle Diameter Run-out Tolerance |
---|---|---|
60 / 67 / 75 | ±0.16 | 0.12 |
85 / 100 / 115 / 132 / 145 | ±0.20 | 0.14 |
170 / 180 / 200 / 236 | ±0.26 | 0.18 |
260 / 300 / 355 / 450 / 530 | ±0.32 | 0.22 |
580 / 600 / 670 | ±0.40 | 0.28 |
Dimensional allowance of each part of the joint
Joint Outside Diameter A | - | g7 |
Bolt Hole and Bolt a | H7 | g7 |
Washer Inside Diameter*1 a | - | 0~+0.4 |
Bushing Inside Diameter, Washer Inside Diameter and Bolt Bushing Insertion Area Diameter a1 |
0~+0.4 | e9 |
Bushing Insertion Hole M | H8 | - |
Bushing Outside Diameter p | - | -0.4~0 |
Bolt Bushing Insertion Area Length m | - | k12 |
Bush width q dimensional allowance | |
---|---|
Standard Dimension | Allowance |
14 / 16 / 18 | ±0.3 |
22.4 / 28 / 40 | -0.5~+0.1 |
56 / 80 | -0.6~+0.2 |
Washer thickness t dimensional allowance | |
---|---|
Standard Dimension | Allowance |
3 | -0.43~+0.03 |
4 | ±0.29 |
5 | ±0.4 |
7 | ±0.5 |
Performance of the Bushing
Characteristics item | NBR (Nitrile rubber) | |
---|---|---|
Machine oil | Excellent | |
Gasoline | Excellent | |
Benzine | Impossible | |
Ketone | Impossible | |
Alcohol | Excellent | |
Acid resistance | Weak acid | Good |
Strong acid | OK | |
Impact resilience | Good | |
Abrasion resistance | Excellent | |
Aging Resistance | Excellent | |
Tensile strength | Excellent | |
Heat resistance (max. operating temperature, regular use) |
90℃ | |
Cold resistance (min. operating temperature, regular use) |
-20℃ |
Alignment Adjustment
- Although the flexible flanged shaft coupling permits misalignment and transmits torque, if the misalignment exceeds the allowable value, vibration may occur or the life may be rapidly shortened. Be sure to perform alignment adjustment.
- Shaft center misalignment includes eccentricity (parallel error of both shaft centers), argument (angle error of both shaft centers), and end-play (shaft direction movement of the shaft). Adjust the shaft alignment so that it will not exceed the allowable value listed in the Dimension/Performance table in this catalog.
- The allowable values of the misalignment listed in the Dimension/Performance table are for the case where any one of eccentricity, argument, and end-play occurs independently. Mixing of two or more misalignment causes each of the allowable values to be reduced to half.
- Misalignment may occur not only in assembling into the device but also due to vibration, thermal expansion, and shaft bearing abrasion during operation. Therefore, it is recommended to keep the misalignment one third of the allowable value or less.
Eccentricity, Parallel Offset Misalignment
Argument, Angular Misalignment
End-Play
Reference Material
Surface pressure of the bushing and the bending stress of the bolt
Joint Outside Diameter A (mm) |
Rated Torque (N・m) |
Pitch Circle Diameter B (mm) |
Number of Bolts n (pc) |
Load per Piece*1 (N) |
Area in Bushing q×a1 (mm2) |
Inner Periphery Pressure P1 (MPa) |
Bushing Width q (mm) |
Clearance t (mm) |
Arm t+q/2 (mm) |
Bending Moment (N・m) |
Bolt Diameter a (mm) |
Section Modulus πa3/32 (mm3) |
Bending Stress σ (MPa) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
90 | 4.9 | 60 | 4 | 82 | 14×9 | 0.65 | 14 | 3 | 10 | 0.82 | 8 | 50.3 | 16.2 |
100 | 9.8 | 67 | 4 | 146 | 16×12 | 0.76 | 16 | 3 | 11 | 1.61 | 10 | 98.2 | 16.4 |
112 | 15.7 | 75 | 4 | 209 | 16×12 | 1.09 | 16 | 3 | 11 | 2.30 | 10 | 98.2 | 23.4 |
125 | 24.5 | 85 | 4 | 288 | 18×16 | 1.00 | 18 | 3 | 12 | 3.46 | 14 | 269.4 | 12.8 |
140 | 49 | 100 | 6 | 327 | 18×16 | 1.13 | 18 | 3 | 12 | 3.92 | 14 | 269.4 | 14.6 |
160 | 110 | 115 | 8 | 478 | 18×16 | 1.66 | 18 | 3 | 12 | 5.74 | 14 | 269.4 | 21.3 |
180 | 157 | 132 | 8 | 595 | 18×16 | 2.06 | 18 | 3 | 12 | 7.14 | 14 | 269.4 | 26.5 |
200 | 245 | 145 | 8 | 845 | 22.4×22.4 | 1.68 | 22.4 | 4 | 15.2 | 12.8 | 20 | 785.4 | 16.4 |
224 | 392 | 170 | 8 | 1150 | 22.4×22.4 | 2.30 | 22.4 | 4 | 15.2 | 17.5 | 20 | 785.4 | 22.3 |
250 | 618 | 180 | 8 | 1720 | 28×28 | 2.19 | 28 | 4 | 18 | 30.9 | 25 | 1535 | 20.1 |
280 | 980 | 200 | 8 | 2450 | 40×32 | 1.94 | 40 | 4 | 24 | 58.8 | 28 | 2155 | 27.3 |
315 | 1570 | 236 | 10 | 2660 | 40×32 | 2.11 | 40 | 4 | 24 | 63.9 | 28 | 2155 | 29.6 |
355 | 2450 | 260 | 8 | 4710 | 56×40 | 2.10 | 56 | 5 | 33 | 155 | 35.5 | 4390 | 35.4 |
400 | 3920 | 300 | 10 | 5230 | 56×40 | 2.33 | 56 | 5 | 33 | 172 | 35.5 | 4390 | 39.3 |
450 | 6180 | 355 | 12 | 5800 | 56×40 | 2.59 | 56 | 5 | 33 | 191 | 35.5 | 4390 | 43.6 |
560 | 9800 | 450 | 14 | 6220 | 56×40 | 2.78 | 56 | 5 | 33 | 205 | 35.5 | 4390 | 46.8 |
630 | 15700 | 530 | 18 | 6580 | 56×40 | 2.94 | 56 | 5 | 33 | 217 | 35.5 | 4390 | 49.5 |
710B | 24500 | 600 | 24 | 6810 | 56×40 | 3.04 | 56 | 5 | 33 | 225 | 35.5 | 4390 | 51.3 |
711B | 33300 | 580 | 20 | 11500 | 80×50 | 2.88 | 80 | 7 | 47 | 541 | 45 | 8950 | 60.4 |
800B | 45000 | 670 | 22 | 12200 | 80×50 | 3.05 | 80 | 7 | 47 | 573 | 45 | 8950 | 64.0 |