-
Bearings
Bearings
-
Housings/housing Units
Housings/housing Units
-
Linear Technology
Linear Technology
-
V-Belts
V-Belts
-
Seals
Seals
FAG
Four Point Contact B. FAG QJ212 -TVP
- Technical data
- Inner diameter
- 60 mm
- Outer diameter
- 110 mm
- Width
- 22 mm
- Seal
- None, open bearing
- Cage
- Polyamide cage
- Clearance
- Normal radial clearance
- Running accuracy
- Tolerance class P0/PN2 / ABEC 1
- Groove(s) on outer ring
- Without groove
- Design
- Split inner ring
- Temperature range
- -20 to +120 °C
- Weight
- 0,925 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 15 | 4,07 € | 77,51 € |
| 30 | 8,16 € | 73,42 € |
Four Point Contact B. FAG QJ212 -TVP
The QJ212-TVP four-point bearing from FAG Rolling Bearings (60x110x22 mm) accommodates high axial forces in both directions whilst requiring minimal axial installation space.
The QJ212-TVP four-point bearing belongs to the group of radial angular contact ball bearings and accommodates axial forces in both directions. The split inner ring allows a large number of balls to be accommodated within the bearing, which enhances the load-carrying capacity of the design. With key dimensions of a 60 mm bore, 110 mm outer diameter and 22 mm width, this roller bearing requires very little axial installation space. As an open design without a seal, it is designed for operation with external lubrication.
What is the QJ212-TVP four-point bearing suitable for in operation?
This bearing is primarily used where alternating or predominantly axial loads occur and tight axial guidance is required. In bearing arrangements where radial forces are absorbed by a separate radial bearing, the four-point bearing specifically provides axial guidance for the shaft in both directions. The version without a retaining groove in the outer ring is suitable for housings in which no fixing via retaining pins is provided.
What are the characteristics of the TVP polyamide cage?
The suffix ‘TVP’ denotes a polyamide cage. This material has a low weight and promotes quiet running of the rolling elements. It is suitable for use within a temperature range of –20 to +120 degrees. As the inner ring is split, the open bearing cannot be fitted as a self-retaining unit: the outer ring and the two halves of the inner ring can be mounted separately onto the shaft and housing, which simplifies handling during assembly.
What are the dimensions of the QJ212-TVP four-point bearing?
With a bore of 60 mm, an outside diameter of 110 mm and a width of 22 mm, the bearing complies with the standardised main dimensions. It is manufactured to tolerance class P0 or ABEC 1. These dimensions allow it to be fitted into assemblies that must accommodate axial forces on both sides within a confined installation space.
What does the designation ‘TVP’ mean in relation to this roller bearing?
The suffix ‘TVP’ stands for a polyamide cage. This plastic material is characterised by its low mass and good damping properties, and promotes quiet operation. For assemblies featuring this cage, the permissible temperature range is from -20 to +120 degrees.
Why does the QJ212 four-point bearing have a split inner ring?
The split inner ring allows a greater number of balls to be fitted, which increases the axial load-carrying capacity of the assembly. At the same time, this design facilitates assembly, as the outer ring and the two halves of the inner ring can be positioned separately on the shaft and housing.
What are the lubrication requirements for the open version?
As it has no integrated seals, the open bearing requires sealing via the housing environment. Lubrication is carried out externally using grease or lubricating oil. This allows for the selection of a lubricant specific to the application and for regular relubrication whilst the bearing is in operation.
What does the standard radial bearing clearance indicate for this four-point bearing?
Standard radial bearing clearance refers to the factory-set standard clearance for typical fit conditions and operating conditions. It serves to compensate for heat-induced expansion of the rolling elements and to counteract undesirable stresses during operation.
Can the four-point bearing absorb radial forces?
This bearing design is primarily intended for pure or predominant axial loads in both directions. If radial forces are also present, the bearing is usually combined with a pure radial bearing, with the outer ring of the four-point bearing being mounted radially in the housing with some clearance.
Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/
10020199