Cylindrical roller bearings
Cylindrical roller bearing are radial bearings in which the cylindrical rolling element is guided on at least one ring between two fixed ribs. The ring on the opposite side is, depending on its type, designed with only one rib or no rib, which allows the bearing to be disassembled. This comes with significant advantages for installation. In addition, both bearing rings can be fitted tightly because the freely moving ring functions as a floating bearing. For space-saving bearing arrangements, bearings without inner rings can be used (ABEG mark: RNU). The rolling element roll directly on the hardened and ground surface of the shaft.
Product range
| Series | Description | available in ABEG® performance classes | |||
|---|---|---|---|---|---|
| NU | Floating bearing Fixed outer ring, movable inner ring |  |  |  | |
| NJ - NJ...+HJ | Support bearing, also with an angle ring (HJ) Fixed outer ring, inner ring movable on one side | | | | |
| NUP | Locating bearing Fixed outer ring, inner ring firmly fixed with thrust washer | | | | |
| N | Floating bearing Movable outer ring, fixed inner ring | | | | |
| RNU | No inner ring | | | | |
| SL0148 - SL0149 - SL0248 -SL0249 | Fixed and floating bearing, double-row, full complement | | | ||
| SL1818 - SL1822 -SL1829- SL1830 | Support bearing, single-row, full complement | | | ||
| SL1850 | Support bearing, double-row, full complement | | | ||
SL0450..-PP - SL04..-PP NNF..-2LS | Cable sheave bearing, full complement with ring grooves in the outer ring | | | ||
| NCF | Locating bearing, full complement, with circlip in the outer ring | | | ||
| NJG | Support bearing, full complement, movable on one side | | | ||
| NNCL | Locating bearing, full complement, circlip in the outer ring as a center lip | | | ||
| NNCF | Locating bearing, full complement, circlip in the outer ring as an outer lip | | | ||
| NNC | Locating bearing, full complement, split outer ring with rib on both sides | | | ||
| NNF | Locating bearing, full complement, outer ring with center lip, inner ring split with clamp ring, sealed | | | ||
| LSL | Support bearing with disk cage | | |||
| ZSL | Support bearing with spacers | | |||
Technical information
The bearing clearance of a bearing is identified by means of its C mark (C0, C2, C3 ...).
C0/CN: standard bearing clearance class. This mark is usually omitted.
C2: decreases bearing clearance
C3: higher bearing clearance than C0/CN
C4: higher bearing clearance than C3
C5: higher bearing clearance than C4, used in particular with high-temperature bearings.
Special tolerances based on customer specifications: CX.Y (upper dimension X in µm, lower dimension Y in µm).
Abutment dimensions and radial runout accuracy have a decisive impact on the service life and function of rolling bearings. The selection of the shaft, housing and bearing tolerance should therefore always be carefully checked in advance.
The following tolerance classes are available:
- Standard tolerances available ex stock: P0/PN
- Special tolerances: P6, P5
Cage types may vary depending on the size and application type. We carry various cage designs made of steel sheet, brass, and plastics.
| Cage designs | Mark | Comment |
| Steel sheet | J | Can be designed as a ribbon cage or riveted cage |
| Solid brass | M | |
| Glass fiber reinforced plastic | TVP, TV, TN | |
| Plastic as spacers | (no designation) |
A lubricant selection that is precisely tailored to the application conditions contributes disproportionately to the service life both in a positive and in a negative sense. For this reason, the technical and economical optimization of the lubricant is an important contribution made by our application consulting.
An essential property of greases and oils is the reliable mechanical separation of the rolling element from the raceway. Depending on the application, you need special types of grease to achieve this function. The following properties in particular affect the function:
- the starting and operating temperature
- the speed of the bearing
- the external ambient conditions (moisture, contamination, vapors/gases...)
Our application engineer would be happy to analyze your application conditions and recommend suitable lubricants.
More information on special lubricants Contact for application consulting
We use the following lubricant manufacturers as standard suppliers:
- Kyodo Yushi
- Klüber Lubrication
- Shell
- Lubcon
- Mobil
- Fuchs
We would be happy to make you a concrete offer for special processing, including the use of greases, oils or preserving agents specifically requested by you.
Rings
Outer and inner rings are manufactured from 100Cr6 (German standard), SUJ2 (Japanese standard) or GCr15 (Chinese standard) as standard.
Cage
Steel sheet cages are manufactured from DC01A/ST12 as standard.
Plastic cages (suffix TN, TV,TVP ...) may have different specifications but are usually made of polyamide.
Brass cages are usually solid cage elements or they are riveted.
Seals
Seals are manufactured from NBR (acrylonitrile butadiene rubber) as standard. This results in an operating temperature of -30 °C to +100 °C, even if the grease permits a higher temperature.
Inadequate sealing can allow external environmental conditions to have an extremely negatively impact on running characteristics and thus a bearing’s service life. For this reason, bearings must be protected by seals.
Bearings with seals on both sides are generally lubricated for life.
At the same time, seals also prevent lubricants from leaking.
2RS / RS
A contact seal with effective sealing that protects against coarse and fine contamination. Also has very effective sealing that protects against lubricant leaks and therefore a long service life. By default, the seal consists of nitrile rubber and has a temperature resistance of -40 °C to +100 °C.
Findling Wälzlager has already produced more than 1,500 drawing parts for its customers. We will find you an economically and technically optimal solution for your application from the combination of ABEG® performance class and designs. You can trust 100 years of experience in rolling bearing technology.
