Matched tapered roller bearings
The SKF assortment of matched single row tapered roller bearings (fig. 1) is based on popular sizes of single row tapered roller bearings. Depending on the application requirements, matched tapered roller bearings are available in different designs and variants:
- Matched bearings arranged face-to-face
- Matched bearings arranged back-to-back
- Matched bearings arranged in tandem
- Basic design and SKF Explorer bearings
The matched bearings listed in the product tables constitute the basic SKF assortment. SKF can supply other matched bearings on request.
- High load carrying capacity
Depending on the design, matched bearings are suitable for heavy radial and axial loads. The axial load carrying capacity of tapered roller bearings increases with increasing contact angle α. The size of the contact angle, which is usually between 10° and 30°, is related to the calculation factor e (from the product tables): the larger the value of e, the larger the contact angle.
- Axial loads in both directions
Depending on the design, matched bearings can locate the shaft axially in both directions with a specific axial clearance or preload.
- High stiffness
Depending on the design, matched bearings can provide a relatively stiff bearing arrangement.
- Delivered as a set
The bearings and ring spacer(s) are matched in production, are delivered as a set and are ready-to-mount.
- Low friction
The projection lines of the raceways of each single bearing meet at a common point on the bearing axis (apex point A, fig. 2) to provide a true rolling action and therefore low frictional moments during operation.
The optimized roller end design and surface finish on the flange (fig. 3) of each single bearing promote lubricant film formation, resulting in lower friction. This also reduces frictional heat and flange wear. In addition, the bearings can better maintain preload and run at reduced noise levels.
- Long service life
The crowned raceway profiles of basic design bearings and the logarithmic raceway profiles of SKF Explorer bearings optimize the load distribution along the contact surfaces, reduce stress peaks at the roller ends (fig. 4), and reduce the sensitivity to misalignment and shaft deflection compared with conventional straight raceway profiles (fig. 5).
- Enhanced operational reliability
Optimized surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film.
- Consistency of roller profiles and sizes
The rollers incorporated in SKF tapered roller bearings are manufactured to such close dimensional and geometrical tolerances that they are practically identical. This provides optimal load distribution between rollers within one and evenly between both matched bearings as well, reduces noise and vibration, and enables preload to be set more accurately.
- Running-in period with reduced temperature peaks
Tapered roller bearings typically have a running-in period, during which a conventional design tapered roller bearing experiences a significant amount of friction, resulting in wear. This effect is noticed as a temperature spike (diagram 1). With SKF tapered roller bearing designs, friction, wear and frictional heat are significantly reduced, provided the bearings are mounted and lubricated correctly.
Dimensions
| Bore diameter |
60 mm |
| Outside diameter |
130 mm |
| Width, total |
67 mm |
| Width, inner ring |
62 mm |
| Width, outer ring |
67 mm |
| Contact angle |
28.811 ° |
Performance
| Basic dynamic load rating |
303 kN |
| Basic static load rating |
335 kN |
| Reference speed |
3 000 r/min |
| Limiting speed |
5 300 r/min |
| SKF performance class |
SKF Explorer |
Properties
| Bearing part |
Complete bearing |
| Number of rows |
2 |
| Locating feature, bearing outer ring |
None |
| Bore type |
Cylindrical |
| Cage |
Sheet metal |
| Matched arrangement |
Face-to-face (X) |
| Number of bearings in matched set |
2 |
| Coating |
Without |
| Sealing |
Without |
| Lubricant |
None |
| Relubrication feature |
With |
Logistics
| Product net weight |
4.05 kg |
| eClass code |
23-05-09-10 |
Guangdong Lingyi Industrial Technology Co., Ltd set up since 1997, with 20 years development, we become one of the best companies in the industry for mechanical and lectrical products system integration, logistics service and investment. The company has set up 21 subsidiaries located in southern, central, eastern and northern China, .
The products categories include:
1, Transmission Products: High and low voltage electric motors, geared motors, gear boxes, bearings, inverter and complete electrical cabinets
2, Automation Products: Automation systems, motion control, low voltage control products and systems, sensor and communication products,
3, Power distribution Products: Low-voltage power distribution products, medium voltage circuit breaker, intelligent building system and equipment.
4, Machinery components.
Count on our 20 years industry experiences. Guangdong Lingyi Industrial Technology Co., Ltd give you one-stop industrial products sourcing, procurement, system integration and services, satisfy your different needs in the industry.
We are looking forward to cooperating with you.
Q1: What about the shipping methods?
A1: For urgent order and light weight, you can choose the following express: UPS, FedEx, TNT, DHL, EMS.
For heavy weight, you can choose to deliver the goods by air or by sea to save cost.
Q2: What about the payment methods?
A2: We accept T/T, L/C for big amount, and for small amount, you can pay us by PayPal, Western Union etc.
Q3: How much does it cost to ship to my country?
A3: It depends on seasons. Fee is different in different seasons. You can consult us at all times.
Q4: What's your delivery time?
A4: Usually we produce within 25-30days after the payment confirmed.
Q5: Can I print our logo/code/series number on your motor?
A5: Yes, of course.
Q6: Can I order some sample for our testing?
A6: Yes, but it needs some expense.
Q7: Can you customize my product in special requirment?
A7: Yes, we can offer OEM.
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