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•Type: Flat Type
•Operating Environment: Standard
•Mounting Style: Hole
•Bearing Material: 440C Stainless Steel
Part Number
Configured Part Number is shown.
Type | [ M ] Material | [ H ] Hardness | Color | |
Bearing | ||||
Steel (52100 Bearing Steel) | Stainless Steel (440C Stainless Steel) | |||
UMBBK | UMSBK | Urethane | Shore A95 | Black |
UMBBKW | UMSBKW | White | ||
UMBB | UMSB | Shore A90 | Black | |
UMBW | UMSW | White | ||
UMBG | UMSG | Shore A70 | Black | |
UMBGW | UMSGW | White | ||
UMBL | - | Shore A50 | Black | |
UMBLW | - | White | ||
UMBD | - | Antistatic Urethane | Shore A90 | Gray |
SUMBB | SUMSB | Silicon Rubber | Shore A70 | Light Gray |
Part Number | - | D |
UMBB10 | - | 30A |
Part Number | D | Allowable Load N (kgf) | B | D1 | r (min.) | Relative Dimension | Bearing Used | |||||||
Type | d | Urethane | Silicon | Ds | R1 (max.) | |||||||||
Shore A95 | Shore A90 | Shore A70 | Shore A50 | Shore A70 | (min.) | (max.) | ||||||||
Urethane UMBBK UMSBK UMBBKW UMSBKW UMBB UMSB UMBW *UMSW UMBG *UMSG UMBGW *UMSGW UMBL UMBLW Antistatic Urethane UMBD Silicon Rubber SUMBB *SUMSB | 3 | 10 | 38(3.8) | 28(2.8) | 9(0.9) | 4(0.4) | 7(0.7) | 3 | 7 | 0.1 | 3.9 | 4.1 | 0.1 | W683ZZA |
12 | 53(5.4) | 34(3.5) | 10(1) | 6(0.6) | 9.8(1) | |||||||||
*4 | 13 | 66(6.7) | 44(4.5) | 13(1.3) | 7(0.7) | 13(1.3) | 4 | 9 | 0.15 | 5 | 5.2 | W684AX50ZZ | ||
16 | 79(8.1) | 59(6) | 16(1.6) | 6(0.6) | 18(1.8) | 5 | 13 | 0.2 | 5.6 | 6.2 | 0.2 | 624ZZ | ||
*5 | 16 | 79(8.1) | 16(1.6) | 6.6 | 6.9 | WBC5-13ZZ | ||||||||
20 | 102(10.4) | 78(8) | 20(2) | 9(0.9) | 24(2.4) | 16 | 0.3 | 7 | 7.6 | 0.3 | 625ZZ | |||
*6 | 20 | 114(11.7) | 23(2.3) | 15(1.5) | 15 | 0.2 | 7.6 | 7.8 | 0.2 | 696ZZ | ||||
28 | 218(22.2) | 157(16) | 44(4.5) | 39(4) | 47(4.8) | 6 | 19 | 0.3 | 8 | 9.5 | 0.3 | 626ZZ | ||
*8 | 28 | 208(21.2) | 42(4.3) | 35(3.6) | 7 | 22 | 10 | 12.2 | 608ZZ | |||||
30A | - | 176(18) | 81(8.3) | 65(6.7) | 53(5.4) | 608ZZ | ||||||||
10 | 30A | 94(9.6) | 51(5.2) | 8 | 26 | 12 | 13.5 | 6000ZZ | ||||||
40A | - | 274(28) | 136(13.9) | 93(9.5) | 82(8.4) | 9 | 30 | 0.6 | 14 | 16 | 0.6 | 6200ZZ | ||
15 | 40A | 122(12.4) | 96(9.9) | 32 | 0.3 | 17 | 19 | 0.3 | 6002ZZ | |||||
45A | - | 343(35) | 109(11.1) | 102(10.5) | 103(10.5) | 11 | 35 | 0.6 | 19 | 20 | 0.6 | 6202ZZ | ||
20 | 45A | 130(13.3) | 98(10.1) | 9 | 37 | 0.3 | 22 | 24 | 0.3 | 6904ZZ | ||||
55A | - | 490(50) | 225(22.9) | 176(18.1) | 147(15) | 14 | 47 | 1 | 25 | 28 | 1 | 6204ZZ | ||
25 | 65A | - | 750(70) | 333(34) | 250(25.8) | 226(23) | 15 | 52 | 30 | 32 | 6205ZZ |
Part Number | D | Allowable Load N (kgf) | B | D1 | B1 | r (min.) | Relative Dimension | Bearing Used | |||||||
Type | d | Urethane | Silicon | Ds | R1 (max.) | ||||||||||
Shore A95 | Shore A90 | Shore A70 | Shore A50 | Shore A70 | (min.) | (max.) | |||||||||
Urethane UMBBK UMSBK UMBBKW UMSBKW UMBB UMSB UMBW UMSW UMBG UMSG UMBGW UMSGW UMBL UMBLW Antistatic Urethane UMBD Silicon Rubber SUMBB SUMSB | 8 | 30 | 248(25.3) | 176(18) | 81(8.3) | 65(6.7) | 53(5.4) | 11 | 22 | 7 | 0.3 | 10 | 12.2 | 0.3 | 608ZZ |
10 | 30 | 201(20.5) | 94(9.6) | 51(5.2) | 26 | 8 | 12 | 13.5 | 6000ZZ | ||||||
40 | 412(42) | 274(18) | 136(13.9) | 93(9.5) | 82(8.4) | 30 | 9 | 0.6 | 14 | 16 | 0.6 | 6200ZZ | |||
15 | 40 | 369(37.6) | 122(12.4) | 96(9.9) | 12 | 32 | 0.3 | 17 | 19 | 0.3 | 6002ZZ | ||||
45 | 534(54.5) | 343(35) | 109(11.1) | 102(10.5) | 103(10.5) | 15 | 35 | 11 | 0.6 | 19 | 20 | 0.6 | 6202ZZ | ||
20 | 45 | 391(39.9) | 130(13.3) | 98(10.1) | 12 | 37 | 9 | 0.3 | 22 | 24 | 0.3 | 6904ZZ | |||
55 | 674(68.7) | 490(50) | 225(22.9) | 176(18.1) | 147(15) | 18 | 47 | 14 | 1 | 25 | 28 | 1 | 6204ZZ | ||
25 | 65 | 999(101.9) | 750(70) | 333(34) | 250(25.8) | 226(23) | 19 | 52 | 15 | 30 | 32 | 6205ZZ |
d | D | Unit Price | ||||||||||||
Steel Bearing | Stainless Steel Bearing | |||||||||||||
Urethane | Antistatic Urethane | Silicon | Urethane | Silicon | ||||||||||
Shore A95 | Shore A90 | Shore A70 | Shore A50 | Shore A90 | Shore A70 | Shore A95 | Shore A90 | Shore A70 | Shore A70 | |||||
UMBBK UMBBKW | UMBB UMBW | UMBG | UMBGW | UMBL | UMBLW | UMBD | SUMBB | UMSBK UMSBKW | UMSB | UMSW | UMSG UMSGW | SUMSB | ||
3 | 10 | 680 | 520 | 670 | 670 | 670 | 670 | 700 | 790 | - | - | - | - | - |
12 | - | - | - | - | - | |||||||||
4 | 13 | 740 | 900 | 690 | 690 | 880 | 930 | |||||||
16 | 670 | 510 | 660 | 660 | 660 | 660 | 690 | |||||||
5 | 16 | 980 | 750 | 750 | 960 | |||||||||
20 | ||||||||||||||
6 | 20 | 690 | 530 | 680 | 680 | 680 | 680 | 710 | 830 | 1,040 | 800 | 800 | 1,020 | 1,070 |
28 | 860 | 1,110 | ||||||||||||
8 | 28 | 860 | ||||||||||||
30 | 980 | 750 | 960 | 960 | 960 | 960 | 920 | 1,040 | 1,190 | 910 | 910 | 1,160 | 1,330 | |
30A | - | - | 960 | - | 960 | - | - | - | - | - | - | |||
10 | 30 | 1,020 | 780 | 990 | 990 | 990 | 990 | 950 | 1,040 | 1,760 | 1,350 | - | - | - |
40 | 1,040 | 800 | 1,020 | 1,020 | 1,020 | 1,020 | 970 | 1,100 | 1,820 | 1,400 | - | - | - | |
30A | - | 780 | - | 990 | - | 990 | - | - | - | 1,350 | - | - | - | |
40A | - | 800 | - | 1,020 | - | 1,020 | - | - | - | 1,400 | - | - | - | |
15 | 40 | 1,010 | 770 | 980 | 980 | 980 | 980 | 940 | 1,150 | 1,930 | 1,480 | - | - | - |
45 | 1,070 | 820 | 1,050 | 1,050 | 1,050 | 1,050 | 1,000 | 1,180 | 2,120 | 1,630 | - | - | - | |
40A | - | 770 | - | 980 | - | 980 | - | - | - | 1,480 | - | - | - | |
45A | - | 820 | - | 1,050 | - | 1,050 | - | - | - | 1,630 | - | - | - | |
20 | 45 | 1,100 | 840 | 1,090 | 1,090 | 1,090 | 1,090 | 1,020 | 1,470 | 2,990 | 2,300 | - | - | - |
55 | 1,270 | 970 | 1,240 | 1,240 | 1,240 | 1,240 | 1,140 | 1,300 | - | - | - | - | - | |
45A | - | 840 | - | 1,090 | - | 1,090 | - | - | - | 2,300 | - | - | - | |
55A | - | 970 | - | 1,240 | - | 1,240 | - | - | - | - | - | - | - | |
25 | 65 | 1,470 | 1,130 | 1,460 | 1,460 | 1,460 | 1,460 | 1,310 | 1,590 | - | - | - | - | - |
65A | - | 1,130 | - | 1,460 | - | 1,460 | - | - | - | - | - | - | - |
Quantity | 1~19 | 20~34 | 35~49 | 50~99 |
Discount Rate | Unit Price | 5% | 15% | 30% |
CAD Data download and 3D preview are not available because the part number has not yet been determined.
Part Number |
---|
UMBW6-20 |
UMSW6-20 |
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For dimensions and/or specifications of the bearings, Click here.
Hardness | Example | ||
---|---|---|---|
Shore A95 | Golf Ball | ![]() | Hard |
Shore A90 | Baseball | ||
Shore A70 | Softball | ||
Shore A50 | Plastic Eraser | ||
Shore A30 | Bicycle Inner Tube | Soft |
Hardness tolerance range: ±5 of the indicated value.
It is important to select the right material according to your application, the different materials we handle within the catalog are
Material | Description |
---|---|
Urethane | Excels in mechanical strength. Weak in heat and chemical resistance. Wide range of hardness variations. |
Nitrile (NBR) | Excels in abrasion resistance and oil resistance, and economical. Inferior in weather resistance. Avoid using in areas where it may be exposed to direct sunlight or around ozone-generating electrical devices. |
Chloroprene (CR) | Well-balanced in properties and economical. |
Ethylene (EPDM) | Excels in weather resistance and economical. Inferior in oil resistance and fire resistance. |
Butyl (IIR) | Excels in weather resistance and airtightness. Suited for inner tube of air tire. Inferior in oil resistance and fire resistance. |
Fluorine (FPM) | Excels in most properties. |
Silicone (SI) | Excels in heat resistance. Inferior in mechanical strength. |
Low Elastic | Excels in shock absorption and oil resistance. Inferior in heat resistance and low temperature resistance. |
The following is a comparison of the resistance of the materials:
Weak | ![]() | Strong | ||||||
---|---|---|---|---|---|---|---|---|
Mechanical Strength | Silicone | Low Elastic | Butyl | Ethylene | Nitrile | Fluorine | Chloroprene | Urethane |
Weather Resistance | Nitrile | Low Elastic | Chloroprene | Urethane | Butyl | Silicone | Ethylene | Fluorine |
Abrasion Resistance | Silicone | Low Elastic | Butyl | Ethylene | Chloroprene | Urethane | Nitrile | Fluorine |
Heat Resistance | Low Elastic | Urethane | Nitrile | Chloroprene | Butyl | Ethylene | Silicone | Fluorine |
Oil Resistance | Butyl | Ethylene | Silicone | Chloroprene | Urethane | Low Elastic | Nitrile | Fluorine |
Urethane will change color and turn yellow over time.
Particularly antistatic urethane (gray color) may undergo noticeable discoloration, but, without physical problems and maintaining its properties.
The process of discoloration over time is shown below. Please consider this before use.
*Time and level of discoloration varies greatly depending on the environment of use, etc.
Before Changing After Changing
Use | Sideways | Over | Under | Diagonal |
---|---|---|---|---|
![]() | ![]() | ![]() | ![]() | |
Recommended Products | Press-fit bearing | Press-fit bearing | Lightweight: Press-fit bearings Heavyweight: Molded bearings | Molded bearing |
[!] The bearing urethane might come loose even if the bearing is used upward, sideways or downward, the bearing urethane can come loose. It happened because an unbalanced load is applied due to mounting accuracy, balancing of the workpiece, or it is used at high rotational speeds.
No. | Product Name | Quantity | Notes |
---|---|---|---|
1 | Molded Urethane Bearing, Form A. | 1 | |
2 | Threaded Shaft for Bearings | 1 | |
3 | Bearing Spacer | 1 | Automatic selection (with or without) |
No. | Product Name | Quantity | Notes |
---|---|---|---|
1 | Molded Urethane, Silicone Rubber Bearing | 1 | |
2 | Cantilever Shafts, Retaining Ring Type | 1 | |
3 | Type C Retaining Ring | 1 | Automatic selection |
Type | Flat Type | Mounting Style | Hole | Operating Environment | Standard (for Light Load) |
---|
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