Roller bearings type LER

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Bearing with profiled raceways

Ball bearing type LER

Type Selection

Dimensions and Data Tables

Bearing diameter KK

Special sizes on request

Unit price:		-,- EUR
Price		-,- EUR

Quantity

Description

Franke bearing elements type LER are suitable for medium rotational speeds and accuracies. They convince by smooth running, high dynamics and compact installation space. Due to the straight contact surfaces, they can be easily integrated into the surrounding design and have a high rigidity. The low price makes the bearing element of type LER an economical solution. LER are generally mounted without clearance. The preload can be individually adjusted according to the requirements.

Material Ball race rings: hardened and tempered chrome-silicon steel Rolling element: hardened rolling bearing steel Cage: polyamide or thermoplastic polyurethane

Operating temperature -30 °C to +80 °C, short-term up to +100 °C

Peripheral speed Max. 5 m/s, without seal max. 10 m/s

Lubricant Shell Gadus S3 V220 C2

Smooth running
Accuracy
Speed
Stiffness
Assembly
Price

Now new in minimum size:
the Franke LER 1.5

Basic data

Installation space 5 x 6 mm
KKØ: 40 - 150 mm

The advantages

Minimal installation space
Minimal weight
Adjustable preload
Cheap price
Free from clearance
High resilience
Rectangular profile for minor
manufacturing and assembly costs

compact

light

adjustable preload

low costs

Minimal installation space, minimal price

In the course of general miniaturization, Franke developed the LER 1.5 bearing element. In the competitive field of small, compact and lightweight bearings, the Franke LER 1.5 is the most space-saving. In contrast to a thin section bearing or a plastic plain bearing, the preload on the LER 1.5 can also be adjusted - precisely according to the criteria of the application. The LER 1.5 not only impresses with its special performance, but also with its particularly attractive price.

rectangular wire profile

Advantage of rectangular profile

Like all bearings of the LER type, the LER 1.5 has running wires made of rectangular profile wire. Therefore, the wire bed can also be made at right angles here. This is particularly helpful in the miniature area and considerably reduces the cost of manufacturing the housing parts. In addition, the rectangular profile improves rigidity and makes assembly easier.

Fields of application

The LER 1.5 is particularly suitable for ultra-compact applications such as in sensitive robots for human-robot collaboration (HRC), in machine exoskeletons or in medical applications. With its small installation space, the new LER 1.5 ideally meets the trend towards miniaturization in the handling and automation area. Small turntables, grippers or manipulators can be moved precisely and with a high load capacity.

Design examples

Data Table

		Load Ratings kn				Static Moment kNm
Name	KKØ mm	C_0a	C_0r	C_a	C_r	C_0m	Weight kg
LER1.5-0040	40	8	4	5	5	0,1	0,01
LER1.5-0070	70	15	7	6	6	0,2	0,03
LER1.5-0080	80	17	8	6	6	0,3	0,03
LER1.5-0090	90	20	9	6	6	0,4	0,03
LER1.5-0100	100	22	10	7	7	0,5	0,04
LER1.5-0110	110	24	11	7	7	0,6	0,04
LER1.5-0120	120	26	12	7	7	0,7	0,05
LER1.5-0130	130	29	13	7	7	0,9	0,05
LER1.5-0140	140	31	14	8	8	1,0	0,05
LER1.5-0150	150	33	15	8	8	1,2	0,06
LER1.5-0050	50	11	5	5	5	0,1	0,02
LER1.5-0060	60	13	6	6	6	0,2	0,02