Single row tapered roller bearings are designed to accommodate combined radial and axial loads and provide low friction during operation. The inner ring, with rollers and cage, can be mounted separately from the outer ring. These separable and interchangeable components facilitate mounting, dismounting and maintenance. By mounting one single row tapered roller bearing against another and applying a preload, a rigid bearing application can be achieved.
| Bearing part | Complete bearing |
| Number of rows | 1 |
| Locating feature, bearing outer ring | Without |
| Bore type | Cylindrical |
| Cage | Sheet metal |
| Arrangement of contact angle (double-row bearing) | Not applicable |
| Matched arrangement | No |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Unit system | Metric |
| Indicative carbon footprint for new product | 9.36 kg CO2e |
| Dimension series |
3EC
|
| d |
85 mm
|
Bore diameter |
|---|---|---|
| D |
150 mm
|
Outside diameter |
| T |
38.5 mm
|
Total width |
| d1 |
≈ 113.29 mm
|
Shoulder diameter of inner ring |
| B |
36 mm
|
Width of inner ring |
| C |
30 mm
|
Width of outer ring |
| r1,2 |
min. 2.5 mm
|
Chamfer dimension of inner ring |
| r3,4 |
min. 2 mm
|
Chamfer dimension of outer ring |
| a |
33.2 mm
|
Distance side face to pressure point |
| da |
max. 97 mm
|
Diameter of shaft abutment |
|---|---|---|
| db |
min. 97 mm
|
Diameter of shaft abutment |
| Da |
min. 130 mm
|
Diameter of housing abutment |
| Da |
max. 140 mm
|
Diameter of housing abutment |
| Db |
min. 142 mm
|
Diameter of housing abutment |
| Ca |
min. 5 mm
|
Minimum width of space required in housing on large side face |
| Cb |
min. 8.5 mm
|
Minimum width of space required in housing on small side face |
| ra |
max. 2.5 mm
|
Radius of shaft fillet |
| rb |
max. 2 mm
|
Radius of housing fillet |
| SKF performance class |
SKF Explorer
|
|
| Basic dynamic load rating | C |
263 kN
|
| Basic static load rating | C0 |
285 kN
|
| Fatigue load limit | Pu |
33.5 kN
|
| Reference speed |
3 600 r/min
|
|
| Limiting speed |
4 300 r/min
|
|
| Limiting value | e |
0.43
|
| Calculation factor | Y |
1.4
|
| Calculation factor | Y0 |
0.8
|
| Dimension series |
3EC
|
| d |
3.3465 in
|
Bore diameter |
|---|---|---|
| D |
5.9055 in
|
Outside diameter |
| T |
1.5157 in
|
Total width |
| d1 |
≈ 4.4602 in
|
Shoulder diameter of inner ring |
| B |
1.4173 in
|
Width of inner ring |
| C |
1.1811 in
|
Width of outer ring |
| r1,2 |
min. 0.0984 in
|
Chamfer dimension of inner ring |
| r3,4 |
min. 0.0787 in
|
Chamfer dimension of outer ring |
| a |
1.3071 in
|
Distance side face to pressure point |
| da |
max. 3.8189 in
|
Diameter of shaft abutment |
|---|---|---|
| db |
min. 3.8189 in
|
Diameter of shaft abutment |
| Da |
min. 5.1181 in
|
Diameter of housing abutment |
| Da |
max. 5.5118 in
|
Diameter of housing abutment |
| Db |
min. 5.5906 in
|
Diameter of housing abutment |
| Ca |
min. 0.1969 in
|
Minimum width of space required in housing on large side face |
| Cb |
min. 0.3346 in
|
Minimum width of space required in housing on small side face |
| ra |
max. 0.0984 in
|
Radius of shaft fillet |
| rb |
max. 0.0787 in
|
Radius of housing fillet |
| SKF performance class |
SKF Explorer
|
|
| Basic dynamic load rating | C |
59 125 lbf
|
| Basic static load rating | C0 |
64 071 lbf
|
| Fatigue load limit | Pu |
7 531 lbf
|
| Reference speed |
3 600 r/min
|
|
| Limiting speed |
4 300 r/min
|
|
| Limiting value | e |
0.43
|
| Calculation factor | Y |
1.4
|
| Calculation factor | Y0 |
0.8
|
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