LM25UU Metric Size Linear Ball Bearings with Double Seals
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- Model: SCJ009735
- SKU: SCJ009735
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- Description
Brief
LM25UU 25mm linear motion bearings are produced with a chrome steel outer cylinder, polyamide retainer, bearing balls and two side seals to prevent invading dirt and moisture. The bearing ball is in point contact with the shaft so that the friction resistance is small and the bearing balls are suitable for low-load and high speed movement.
Description
Metric size liner ball bearings with nylon retainer, steel-made outer cylinder, balls and two end rings. These linear ball bearings primarily stand out for compact design, easy assembly, very smooth running, high-load capacity, high rigidity. Adjustable types are also available for play-free operation.
Specifications
Nominal shaft diameter | Resin retainer | dr | ||||||||||
LM…UU | Ball circuit | Weight | LM…UU-AJ | Ball circuit | Weight | LM…UU-OP | Ball circuit | Weight | mm | Tolerance | ||
Precision | High | |||||||||||
8mm | LM8UU | 4 | 15g | LM8UU-AJ | 4 | 14.7g | - | - | - | 8 | 0 -6μm | 0 -9μm |
10mm | LM10UU | 4 | 29.5g | LM10UU-AJ | 4 | 29g | LM10UU-OP | 3 | 23g | 10 | ||
12mm | LM12UU | 4 | 31.5g | LM12UU-AJ | 4 | 31g | LM12UU-OP | 3 | 25g | 12 | ||
16mm | LM16UU | 5 | 69g | LM16UU-AJ | 5 | 68g | LM16UU-OP | 4 | 52g | 16 | ||
20mm | LM20UU | 5 | 87g | LM20UU-AJ | 5 | 85g | LM20UU-OP | 4 | 69g | 20 | 0 -7μm | 0 -10μm |
25mm | LM25UU | 6 | 220g | LM25UU-AJ | 6 | 216g | LM25UU-OP | 5 | 188g | 25 | ||
30mm | LM30UU | 6 | 250g | LM30UU-AJ | 6 | 245g | LM30UU-OP | 5 | 210g | 30 | ||
35mm | LM35UU | 6 | 390g | LM35UU-AJ | 6 | 384g | LM35UU-OP | 5 | 335g | 35 | 0 -8μm | 0 -12μm |
40mm | LM40UU | 6 | 585g | LM40UU-AJ | 6 | 579g | LM40UU-OP | 5 | 500g | 40 | ||
50mm | LM50UU | 6 | 1580g | LM50UU-AJ | 6 | 1560g | LM50UU-OP | 5 | 1340g | 50 | ||
60mm | LM60UU | 6 | 1860g | LM60UU-AJ | 6 | 1820g | LM60UU-OP | 5 | 1610g | 60 | 0 -9μm | 0 -15μm |
Major dimensions and tolerance | Eccentricity | Radial clearance (Max) | Basic load rating | ||||||||||||
D | L | B | W | D1 | h | h1 | θ | ||||||||
mm | Tolerance | mm | Tolerance | mm | Tolerance | Precision | High | Dynamic | Static | ||||||
15 | 0 -11μm | 24 | 0 -200μm | 17.5 | 0 -200μm | 1.1mm | 14.3mm | 1mm | - | - | 8μm | 12μm | -3μm | 274c N | 392co N |
19 | 0 -13μm | 29 | 22 | 1.3mm | 18mm | 1mm | 6.8mm | 80° | -4μm | 372c N | 549co N | ||||
21 | 30 | 23 | 1.3mm | 20mm | 1.5mm | 8mm | 80° | 510c N | 784co N | ||||||
28 | 37 | 26.5 | 1.6mm | 27mm | 1.5mm | 11mm | 80° | -6μm | 774c N | 1180co N | |||||
32 | 0 -16μm | 42 | 30.5 | 1.6mm | 30.5mm | 1.5mm | 11mm | 60° | 10μm | 15μm | 882c N | 1370co N | |||
40 | 59 | 0 -300μm | 41 | 0 -300μm | 1.85mm | 38mm | 2mm | 12mm | 50° | 980c N | 1570co N | ||||
45 | 64 | 44.5 | 1.85mm | 43mm | 2.5mm | 15mm | 50° | -8μm | 1570c N | 2740co N | |||||
52 | 0 -19μm | 70 | 49.5 | 2.1mm | 49mm | 2.5mm | 17mm | 50° | 12μm | 20μm | 1670c N | 3140co N | |||
60 | 80 | 60.5 | 2.1mm | 57mm | 3mm | 20mm | 50° | -10μm | 2160c N | 4020co N | |||||
80 | 100 | 74 | 2.6mm | 76.5mm | 3mm | 25mm | 50° | -13μm | 3820c N | 7940co N | |||||
90 | 0 -22μm | 110 | 85 | 3.15mm | 86.5mm | 3mm | 30mm | 50° | 17μm | 25μm | 4700c N | 10000co N |
Tips: Ten Advantages of Linear Ball Bearings
- High precision
The LM linear bearing has a hardened outer cylinder and steel balls. Its components are made with high accuracy, so it can deliver precise motion control, along with higher loads and greater rigidity. - Corrosion-and-rust resistance
The linear bearing pillow block is made of galvanized aluminum alloy, well-designed and anti-corrosion. Hard chrome-plated shaft delivers anti-rust property. - Easy bearing replacement
Linear ball bearings adopt standardized design for easier and less costly replacement, less precaution and time-saving during assembly, characterized by distinct structure, compactness and light weight. - Smooth and quiet operation
Linear ball bearings have the lowest friction resistance as the steel balls loaded in the high tensile resin retainer are in point contact with the bearing housing. Therefore, the bearings can provide very smooth linear motion while reducing the noise. - Long lifespan
The friction coefficient of linear ball bearings do not change with the increase in load so as to ensure the long service time of the bearing even when working under heavy load. Note incidentally that LM linear ball bearings can deal with loads applied from any direction. - Double-sealed Design
’s linear ball bearing adopt seals on both sides in order to prevent leaking of lubricant and avoid any exposure from environmental contaminants, suitable for use in places where there is a lot of dust or foreign objects are easy to invade. - Energy-efficient and Able to increase motor performance
The point contact between the balls and the bearing housing allows the steel balls rotate with very little frictional resistance, so that ball bearings do not have static friction to overcome before moving, enabling them to be energy-efficient and to obtain high-precision and smooth movement. - Simple maintenance
Save internal grease-lubrication of the bearing, making it easy for maintenance. - Large operating range temperature ( -40 ~ 180 degree)
- Cost-efficient
Featured with light weight, corrosion-resistance, easy replacement and low cost, linear ball bearings can help maximize the performance of various equipment in a bid to deliver best efficiency. Competitive prices lower their cost on the market.
Simple, reliable, and highly effective, ball bearings are immensely valuable for reducing friction and wear while improving operational efficiency in all types of machinery.
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