Quick Contact
While Silverthin is the premier source for Made in the USA Thin Section Bearings, sometimes they are just not thin enough. Some applications require even lighter, thinner bearings. In those cases Silverthin Extra Thin Section Bearings represent a unique option. All of these parts are made in the same internal design configurations as Silverthin Thin Section bearings, and all are Made in the USA:
- A-Type (Angular Contact – 30°)
- C-Type (Radial)
- X-Type (Four Point Contact – 30°)
Aside from being Extra Thin, the cross-sections are not square. They come in two constant cross-section, variable ID sizes:
- 2mm Wide x 3mm High
- Standard with no cage
These bearings provide a unique solution for small spaces and provide less torque than more common bushing or plain bearings that may be used. It is recommended that Silverthin Engineering be consulted by any designer wanting to use Silverthin Extra Thin Section bearings. Their unique geometry requires extra considerations.
Full complement or spacer balls standard
1/16" balls
- Load capacities are not additive
- The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.25mm
- Race Width Tolerance: +0.000 -0.127mm
| SILVERTHIN PART NUMBER |
DIMENSION IN MILLIMETERS | CAPACITIES IN NEWTONS | APPROX WEIGHT GRAMS |
|||||
|---|---|---|---|---|---|---|---|---|
| BORE | OUTSIDE DIA |
LAND DIA |
LAND DIA |
RADIAL | THRUST | |||
| B | D | L1 | L2 | STATIC | DYN | STATIC | ||
| SM03503AS0 | 35.000 | 41 | 37.2 | 38.8 | 385 | 385 | 1,335 | 5 |
| SM06003AS0 | 60.000 | 66 | 62.2 | 63.8 | 650 | 550 | 1,110 | 9 |
| SM07003AS0 | 70.000 | 76 | 72.2 | 73.8 | 750 | 610 | 1,070 | 11 |
| SM07403AS0 | 74.000 | 80 | 76.2 | 77.8 | 800 | 630 | 1,045 | 11 |
| SM08003AS0 | 80.000 | 86 | 82.2 | 83.8 | 865 | 660 | 1,000 | 12 |
| SM09003AS0 | 90.000 | 96 | 92.2 | 93.8 | 970 | 715 | 955 | 13 |
| SM10003AS0 | 100.000 | 106 | 102.2 | 103.8 | 1,075 | 765 | 890 | 15 |
| SM11003AS0 | 110.000 | 116 | 112.2 | 113.8 | 1,185 | 815 | 865 | 16 |
| SM12003AS0 | 120.000 | 126 | 122.2 | 123.8 | 1,290 | 865 | 825 | 18 |
| SM13003AS0 | 130.000 | 136 | 132.2 | 133.8 | 1,405 | 915 | 775 | 19 |
| SM14003AS0 | 140.000 | 146 | 142.2 | 143.8 | 1,515 | 950 | 735 | 21 |
| SM15003AS0 | 150.000 | 156 | 152.2 | 153.8 | 1,620 | 1,000 | 710 | 22 |
| SM16003AS0 | 160.000 | 166 | 162.2 | 163.8 | 1,725 | 1,045 | 690 | 24 |
| SM17003AS0 | 170.000 | 176 | 172.2 | 173.8 | 1,835 | 1,085 | 670 | 25 |
Full complement or spacer balls standard
1/16" balls
- Load capacities are not additive
- The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.25mm
- Race Width Tolerance: +0.000 -0.127mm
| SILVERTHIN PART NUMBER |
DIMENSION IN MILLIMETERS | CAPACITIES IN NEWTONS | APPROX WEIGHT GRAMS |
||||
|---|---|---|---|---|---|---|---|
| BORE | OUTSIDE DIA |
LAND DIA |
LAND DIA |
RADIAL | |||
| B | D | L1 | L2 | STATIC | DYN | ||
| SM03503CS0 | 35.000 | 41 | 37.2 | 38.8 | 420 | 420 | 5 |
| SM06003CS0 | 60.000 | 66 | 62.2 | 63.8 | 710 | 605 | 9 |
| SM07003CS0 | 70.000 | 76 | 72.2 | 73.8 | 825 | 670 | 11 |
| SM07403CS0 | 74.000 | 80 | 76.2 | 77.8 | 875 | 690 | 11 |
| SM08003CS0 | 80.000 | 86 | 82.2 | 83.8 | 945 | 725 | 12 |
| SM09003CS0 | 90.000 | 96 | 92.2 | 93.8 | 1,060 | 785 | 13 |
| SM10003CS0 | 100.000 | 106 | 102.2 | 103.8 | 1,180 | 840 | 15 |
| SM11003CS0 | 110.000 | 116 | 112.2 | 113.8 | 1,295 | 895 | 16 |
| SM12003CS0 | 120.000 | 126 | 122.2 | 123.8 | 1,410 | 940 | 18 |
| SM13003CS0 | 130.000 | 136 | 132.2 | 133.8 | 1,540 | 1,000 | 19 |
| SM14003CS0 | 140.000 | 146 | 142.2 | 143.8 | 1,660 | 1,050 | 21 |
| SM15003CS0 | 150.000 | 156 | 152.2 | 153.8 | 1,775 | 1,100 | 22 |
| SM16003CS0 | 160.000 | 166 | 162.2 | 163.8 | 1,890 | 1,145 | 24 |
| SM17003CS0 | 170.000 | 176 | 172.2 | 173.8 | 2,005 | 1,195 | 25 |
Full complement or spacer balls standard
1/16" balls
- Load capacities are not additive
- The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.25mm
- Race Width Tolerance: +0.000 -0.127mm
| SILVERTHIN PART NUMBER |
DIMENSION IN MILLIMETERS | CAPACITIES IN NEWTONS / N-M | APPROX WEIGHT GRAMS |
||||||
|---|---|---|---|---|---|---|---|---|---|
| BORE | OUTSIDE DIA |
LAND DIA |
LAND DIA |
RADIAL | THRUST | MOMENT | |||
| B | D | L1 | L2 | STATIC | DYN | STATIC | STATIC | ||
| SM03503XS0 | 35.000 | 41 | 37.2 | 38.8 | 710 | 585 | 1,045 | 7.9 | 5 |
| SM06003XS0 | 60.000 | 66 | 62.2 | 63.8 | 1,210 | 850 | 935 | 11.8 | 9 |
| SM07003XS0 | 70.000 | 76 | 72.2 | 73.8 | 1,410 | 935 | 890 | 13 | 11 |
| SM07403XS0 | 74.000 | 80 | 76.2 | 77.8 | 1,490 | 965 | 865 | 13.4 | 11 |
| SM08003XS0 | 80.000 | 86 | 82.2 | 83.8 | 1,605 | 1,015 | 845 | 14 | 12 |
| SM09003XS0 | 90.000 | 96 | 92.2 | 93.8 | 1,805 | 1,095 | 800 | 14.9 | 13 |
| SM10003XS0 | 100.000 | 106 | 102.2 | 103.8 | 2,005 | 1,180 | 755 | 15.6 | 15 |
| SM11003XS0 | 110.000 | 116 | 112.2 | 113.8 | 2,200 | 1,250 | 735 | 16.6 | 16 |
| SM12003XS0 | 120.000 | 126 | 122.2 | 123.8 | 2,400 | 1,320 | 690 | 17 | 18 |
| SM13003XS0 | 130.000 | 136 | 132.2 | 133.8 | 2,620 | 1,400 | 645 | 17.2 | 19 |
| SM14003XS0 | 140.000 | 146 | 142.2 | 143.8 | 2,820 | 1,470 | 625 | 17.8 | 21 |
| SM15003XS0 | 150.000 | 156 | 152.2 | 153.8 | 3,015 | 1,540 | 600 | 18.4 | 22 |
| SM16003XS0 | 160.000 | 166 | 162.2 | 163.8 | 3,215 | 1,600 | 575 | 18.9 | 24 |
| SM17003XS0 | 170.000 | 176 | 172.2 | 173.8 | 3,415 | 1,670 | 555 | 19.2 | 25 |
Type A, C & X – Precision Class 1 (Ref. ABEC 1F)
For standard clearance bearings only
| Bearing Size |
Bearing Diameters | Radial & Axial Runout | Rotating Shaft or Duplex F Mounting |
Stationary Shaft or Duplex B Mounting |
Standard Bearing Diametral Clearance* |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Bore |
Bearing OD |
Inner Race |
Outer Race |
Shaft Diameter |
Housing Bore |
Shaft Diameter | Housing Bore | |||||
| Nominal +.0000 |
Nominal +.0000 |
Radial & Axial |
Radial & Axial |
Nominal +.0000 |
Nominal +.0000 |
Nominal | Nominal | Before Installation | ||||
| 35 | -.0130 | -.0130 | .0100 | .0100 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 60 | -.0130 | -.0130 | .0130 | .0130 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 70 | -.0130 | -.0130 | .0150 | .0150 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 74 | -.0130 | -.0130 | .0150 | .0150 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 80 | -.0130 | -.0130 | .0150 | .0150 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 90 | -.0130 | -.0130 | .0150 | .0150 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 100 | -.0130 | -.0130 | .0150 | .0150 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 110 | -.0130 | -.0130 | .0200 | .0200 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 120 | -.0130 | -.0130 | .0200 | .0200 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 130 | -.0130 | -.0130 | .0200 | .0200 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 140 | -.0130 | -.0130 | .0250 | .0250 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 150 | -.0130 | -.0130 | .0250 | .0250 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 160 | -.0130 | -.0130 | .0250 | .0250 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
| 170 | -.0130 | -.0130 | .0250 | .0250 | +.0130 | +.0130 | +.0000 | -.0130 | +.0000 | -.0130 | .0300 | .0460 |
- All dimensions in millimeters
- Tolerances for shaft and housing are for steel material under normal ambient conditions
- Diametral clearance after installation could vary significantly if bearing, housing, and shaft tolerances are at either end of their range.
- Race Width Tolerance
- Single Type C, X, A Bearings: +.000 –.127
- Duplexed Type A Pairs: +.000 –.254
