Tapered Roller Bearings
The inner and outer ring raceways are segments of cones and the rollers are tapered so that the conical surfaces of the raceways, and the roller axes, if projected, would all meet at a common point on the main axis of the bearing. This geometry makes the motion of the cones remain coaxial, with no sliding motion between the raceways and the OD of the rollers.
This conical geometry creates a linear contact patch which permits greater loads to be carried than with spherical (ball) bearings, which have point contact. The geometry means that the tangential speeds of the surfaces of each of the rollers are the same as their raceways along the whole length of the contact patch and no differential scrubbing occurs.The rollers are stabilized and restrained by a flange on the inner ring, against which their large end slides, which stops the rollers from popping out due to the "pumpkin seed effect" of their conical shape.
The larger the half angles of these cones the larger the axial force that the bearing can sustain.Tapered roller bearings are separable into a cone assembly and a cup. The non-separable cone assembly consists of the inner ring, the rollers, and a cage that retains & evenly spaces the rollers. The cup is simply the outer ring. Internal clearance is established during mounting by the axial position of the cone relative to the cup, although preloaded installations without clearance are common.
- KOYO 3193/3130 tapered roller bearings
- 415 Series
- Non-Expansion
- 85,725 mm x 146,05 mm x 41,275 mm Timken 665/653 tapered roller bearings
- Normal Duty
- Setscrew Ball Bearing
- 133,35 mm x 196,85 mm x 46,038 mm SKF 67391/67322 tapered roller bearings
- Normal Duty
- Setscrew Ball Bearing
- NTN 432322 tapered roller bearings
- Medium Duty
- Setscrew Ball Bearing
- 31.75 mm x 72,626 mm x 29,997 mm NSK 3188/3120 tapered roller bearings
- Normal Duty
- Setscrew Ball Bearing
- Fersa F15084 tapered roller bearings
- Normal Duty
- Setscrew Ball Bearing
- Fersa F15003 tapered roller bearings
- Intermediate Duty
- Setscrew Ball Bearing
- 74,612 mm x 150 mm x 41,275 mm NSK 658/653X tapered roller bearings
- Normal Duty
- Grip Tight Ball Bearing
- 42,875 mm x 79,375 mm x 25,4 mm ISO 26884/26822 tapered roller bearings
- Normal Duty
- Setscrew Ball Bearing
- 341,312 mm x 457,098 mm x 254 mm NTN E-LM761648D/LM761610/LM761610D tapered roller bearings
- Normal Duty
- D-Lock Ball Bearing
- Toyana L116149/10 tapered roller bearings
- Normal Duty
- Setscrew Ball Bearing
- Fersa 24781/24721 tapered roller bearings
- Normal Duty
- Setscrew Ball Bearing