Linear bearings are widely used in a variety of industrial machinery, such as: precision machine tools, textile machinery, food packaging machinery, printing machinery, computers and peripheral equipment.
Linear Bearings
There are many types of linear bearings, including: ordinary type, extended type.
Model No: LM12UU
Size: 12x21x30mm
Material: chromel steel Gcr15
Weight: 0.0315KG
Lead time: 5-7 days
Specification
LM12UU linear bearings are specifically designed for CNC machine tools. Featuring an inner diameter of 12mm, an outer diameter of 21mm, and a length of 30mm, they are constructed from high-carbon chromium steel. Equipped with a resin cage and dual-side rubber seals, these bearings offer low friction coefficients, high precision, low noise, and extended service life. They provide precise and stable linear motion support for CNC machine tools.
Technical parameter:
| Model Number | LM12UU |
| Size | 12x21x30mm |
| Weight | 0.0315KG |
| Material | chromel steel Gcr15 |
| Clearance | C2 C0 C3 C4 |
| Precision Grade | p0 p6 p5 p4 |
| Brand name | Famous brand/RMO/Neutral/OEM |
| Shipping Port | GuangZhou, NingBo, ShangHai |
| Payment terms | 100% T/T or 30% T/T in advance, 70% before delivery |
| MOQ | 50pcs |
| Lubrication | Pre-lubricated with High-Performance Grease |
| Temperature Range | -20°C to +120°C |
| Lead Taime | 5-7 Days |
Basic concept and structure:
Linear bearing is mainly composed of outer ring, cage, steel ball and sealing ring. The outer ring is equipped with a plurality of ball bearings, and is fixed by a cage, and both ends are closed by a gasket stop ring. The ball circulates in the groove of the rail to achieve smooth movement through minimal friction resistance.
Features: low noise, low friction, high precision, high life. Due to the point contact between the ball and the linear axis, the friction is small and the motion accuracy is high.
Related Products
| Bearings NO. | ID(d*D*B)mm | Weight (KG) | Bearings NO. | ID(d*D*B)mm | Weight (KG) |
| LM3-UU | 3*7*10 | 0.0014 | LME3-UU | 3*7*10 | 0.0014 |
| LM4-UU | 4*8*12 | 0.0019 | LME4-UU | 4*8*12 | 0.002 |
| LM5-UU | 5*10*15 | 0.004 | LME5-UU | 5*12*22 | 0.011 |
| LM6-UU | 6*12*9 | 0.0076 | LME6-UU | 6*12*9 | 0.0076 |
| LM8-UU | 8*15*24 | 0.015 | LME8-UU | 8*16*25 | 0.02 |
| LM10-UU | 10*19*29 | 0.0295 | LME10-UU | 10*19*29 | 0.0295 |
| LM12-UU | 12*21*30 | 0.0315 | LME12-UU | 12*22*32 | 0.041 |
| LM13-UU | 13*23*32 | 0.043 | LME13-UU | 13*23*32 | 0.043 |
| LM16-UU | 16*28*37 | 0.069 | LME16-UU | 16*26*36 | 0.057 |
| LM20-UU | 20*32*42 | 0.087 | LME20-UU | 20*32*45 | 0.091 |
| LM25-UU | 25*40*59 | 0.22 | LME25-UU | 25*40*58 | 0.22 |
| LM30-UU | 30*45*64 | 0.25 | LME30-UU | 30*47*68 | 0.325 |
| LM35-UU | 35*52*70 | 0.39 | LME35-UU | 35*52*70 | 0.39 |
| LM40-UU | 40*60*80 | 0.585 | LME40-UU | 40*62*80 | 0.705 |
| LM50-UU | 50*80*100 | 1.58 | LME50-UU | 50*75*100 | 1.13 |
| LM60-UU | 60*90*110 | 2.0 | LME60-UU | 60*90*125 | 2.05 |
| LM80-UU | 80*120*140 | 4.52 | LME8-LUU | 8*16*46 | 0.031 |
| LM100-UU | 100*150*175 | 8.6 | LME10-LUU | 10*19*55 | 0.059 |
| LM6LUU | 6*12*35 | 0.016 | LME12-LUU | 12*22*61 | 0.08 |
| LM8LUU | 8*15*45 | 0.031 | LME16-LUU | 16*26*68 | 0.145 |
| LM10LUU | 10*19*55 | 0.062 | LME20-LUU | 20*32*80 | 0.18 |
| LM12LUU | 12*21*57 | 0.08 | LME25-LUU | 25*40*112 | 0.44 |
| LM13LUU | 13*23*61 | 0.09 | LME30-LUU | 30*47*123 | 0.58 |
| LM16LUU | 16*28*70 | 0.145 | LME40-LUU | 40*62*151 | 1.17 |
| LM20LUU | 20*32*80 | 0.18 | LME50-LUU | 50*75*192 | 3.1 |
| LM25LUU | 25*40*112 | 0.44 | LME60-LUU | 60*90*209 | 3.5 |
| LM30LUU | 30*45*123 | 0.58 | LM50LUU | 50*80*192 | 2.1 |
| LM35LUU | 35*52*135 | 0.8 | LM60LUU | 60*90*209 | 3.5 |
| LM40LUU | 40*60*154 | 1.17 | |||
Application
Linear bearings are widely used in a variety of industrial machinery, such as: precision machine tools, textile machinery, food packaging machinery, printing machinery, computers and peripheral equipment.
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