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Linear Technology
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Seals
FAG
Deep Groove Ball Bearings FAG 6219 -Z
- Technical data
- Inner diameter
- 95 mm
- Outer diameter
- 170 mm
- Width
- 32 mm
- Material
- Standard bearing steel
- Ball rows
- Single row bearing
- Seal
- Cover on one side
- Cage
- Sheet steel cage
- Clearance
- Normal radial clearance
- Running accuracy
- Tolerance class P0/PN2 / ABEC 1
- Current insulation
- No current insulation
- Bore
- Cylindrical bore
- Outer ring
- Without flange/groove
- Material of rolling elements
- Standard bearing steel
- Temperature range
- -30 to +150 °C
- Weight
- 2,635 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 10 | 5,75 € | 109,25 € |
| 20 | 11,49 € | 103,51 € |
Deep Groove Ball Bearings FAG 6219 -Z
The 6219-Z deep-groove ball bearing from FAG Rolling Bearings, with a 95 mm bore and a single-sided Z-cover, offers a solution for industrial shaft mountings.
The single-row deep-groove ball bearing 6219 -Z is designed to accommodate high radial forces as well as moderate axial loads in both directions. FAG Wälzlager manufactures this version from standard rolling bearing steel 100Cr6 with the main dimensions of 95 mm inner diameter, 170 mm outer diameter and 32 mm width. A sheet steel cage guides the rolling elements evenly through the deep raceways in the inner and outer rings, contributing to smooth running under industrial operating conditions.
What is the 6219-Z deep groove ball bearing suitable for in operation?
Design engineers opt for this bearing type when supporting shafts of a correspondingly large diameter and when one side of the bearing housing needs to be protected from coarse dirt. Typical applications are found in mechanical engineering for shaft mountings that absorb radial forces and require an open lubrication side. Thanks to its design without a flange or groove on the outer ring, the bearing can be inserted directly into cylindrical housing bores and positioned precisely there.
What is the advantage of the single-sided sheet metal cover Z?
The designation ‘Z’ stands for a non-contacting cover plate made of sheet steel on one side of the bearing. This cover keeps particles out and reduces the escape of lubricant without generating additional friction or heat. At the same time, the opposite side of the bearing remains open. This allows the rolling bearing to be supplied with lubricant via the housing cavity whilst installed, which facilitates maintenance and relubrication in enclosed housing designs.
What are the dimensions of the 6219-Z deep-groove ball bearing?
With a bore of 95 mm, an outside diameter of 170 mm and a total width of 32 mm, the bearing complies with the standardised main dimensions. The outer ring is designed without a flange or retaining groove. This allows the component to be fitted with a precise fit onto suitable shaft seats and into cylindrical housing bores.
What does the suffix ‘Z’ mean in the designation of this deep-groove ball bearing?
The symbol ‘Z’ denotes a cover plate made of sheet steel fitted on one side. This plate provides contactless protection for the bearing’s interior against particles and dirt. As there is no abrasive contact with the inner ring, the speed limit remains the same as for open bearings. The other side of the bearing remains open.
What is the temperature range for which the bearing is specified?
The permissible temperature range is between -30 and +150 degrees. The standard 100Cr6 rolling bearing steel used and the sheet steel cage retain their dimensional stability within this temperature range. This range is suitable for industrial drive and machinery applications with moderate to elevated operating temperatures.
What characteristics does standard radial bearing clearance have?
The standard radial bearing clearance defines the intended radial clearance between the balls and raceways when the bearing is not mounted. It is designed for typical fit conditions and standard operating conditions, where there are no extreme temperature differences between the inner and outer rings.
What does the tolerance class P0 or ABEC 1 mean?
Tolerance class P0 corresponds to the designations PN and ABEC 1 and forms the manufacturing standard for metric roller bearings. It specifies limit values for dimensional accuracy, roundness and running accuracy of the inner and outer rings. This tolerance class is sufficient for standard requirements in general mechanical engineering.
How is the roller bearing, which is covered on one side, lubricated?
The lubricant is usually supplied from inside the housing via the open bearing side. Depending on the design, the bearing can be filled with grease or supplied via an oil bath or recirculating lubrication system. The Z-cover plate on the opposite side helps to prevent the lubricant from escaping.
Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/
10015538