LM Adjustable Open Linear Bearing
LM Adjustable Open Linear Bearing is a high-performance metric component designed for versatile industrial applications like CNC machines and robotics. This type is a metric dimension series widely used in Japan and other countries. Available in durable Stainless Steel or Synthetic Resin, this series offers Standard, Open, and Adjustable configurations to meet specific needs such as easy installation on pre-assembled shafts or precise clearance tuning. Manufactured to strict metric dimensions, it ensures full interchangeability with international systems while delivering reliable, smooth linear motion.
Technical Specificationsļ¼
LM/LM-AJ/LM-OP Series
| Nominal Part No. | Nominal Shaft Diameter (mm) |
Major Dimensions(mm) | Eccentricity (max) Ī¼ m |
Radial Clearance (max) Ī¼ m |
Basic Load Rating | Nominal Part No. |
|||||||||||||
| Resin Retainer |
Stainless Steel Retainer |
Ball Circuit |
Weight g |
Adjustable Type |
Open Type | dr | D | L | B | W | D1 | h | h1 | Īø | Dynamic C(N) |
Static Co(N) |
|||
LM3UU |
4 | 1.4 | 3 | 7 | 10 | 69 | 105 | LM3 | |||||||||||
LM4UU |
4 | 2 | 4 | 8 | 12 | 88 | 127 | LM4 | |||||||||||
LM5UU |
4 | 4 | 5 | 10 | 15 | 10.2 | 1.1 | 9.6 | ā | ā | ā | 8 | -3 | 167 | 206 | LM5 | |||
LM6UU |
LM6-A | 4 | 8.5 | LM6-AJ | 6 | 12 | 19 | 13.5 | 1.1 | 11.5 | 1 | ā | ā | 12 | -3 | 206 | 265 | LM6 | |
LM8SUU |
4 | 11 | LM8S-AJ | 8 | 15 | 17 | 11.5 | 1.1 | 14.3 | 1 | ā | ā | 12 | -3 | 176 | 225 | LM8S | ||
LM8UU |
LM8-A | 4 | 17 | LM8-AJ | 8 | 15 | 24 | 17.5 | 1.1 | 14.3 | 1 | ā | ā | 12 | -3 | 265 | 402 | LM8 | |
LM10UU |
LM10-A | 4 | 36 | LM10-AJ | 10 | 19 | 29 | 22 | 1.3 | 18 | 1 | ā | ā | 12 | -4 | 373 | 549 | LM10 | |
LM12UU |
LM12-A | 4 | 42 | LM12-AJ | LM12-OP | 12 | 21 | 30 | 23 | 1.3 | 20 | 1.5 | 8 | 80Ā° | 12 | -4 | 412 | 590 | LM12 |
LM13UU |
4 | 49 | LM13-AJ | LM13-OP | 13 | 23 | 32 | 23 | 1.3 | 22 | 1.5 | 9 | 80Ā° | 12 | -4 | 510 | 775 | LM13 | |
LM16UU |
LM16-A | 5 | 76 | LM16-AJ | LM16-OP | 16 | 28 | 37 | 26.5 | 1.6 | 27 | 1.5 | 11 | 80Ā° | 12 | -6 | 775 | 1180 | LM16 |
LM20UU |
LM20-A | 5 | 100 | LM20-AJ | LM20-OP | 20 | 32 | 42 | 30.5 | 1.6 | 30.5 | 1.5 | 11 | 60Ā° | 15 | -6 | 863 | 1370 | LM20 |
LM25UU |
LM25-A | 6 | 240 | LM25-AJ | LM25-OP | 25 | 40 | 59 | 41 | 1.85 | 38 | 2 | 12 | 50Ā° | 15 | -6 | 980 | 1570 | LM25 |
LM30UU |
LM30-A | 6 | 270 | LM30-AJ | LM30-OP | 30 | 45 | 64 | 44.5 | 1.85 | 43 | 2.5 | 15 | 50Ā° | 15 | -8 | 1570 | 2750 | LM30 |
LM35UU |
LM35-A | 6 | 425 | LM35-AJ | LM35-OP | 35 | 52 | 70 | 49.5 | 2.1 | 49 | 2.5 | 17 | 50Ā° | 20 | -8 | 1670 | 3140 | LM35 |
LM40UU |
LM40-A | 6 | 654 | LM40-AJ | LM40-OP | 40 | 60 | 80 | 60.5 | 2.1 | 57 | 3 | 20 | 50Ā° | 20 | -10 | 2162 | 4020 | LM40 |
LM50UU |
LM50-A | 6 | 1700 | LM50-AJ | LM50-OP | 50 | 80 | 100 | 74 | 2.6 | 76.5 | 3 | 25 | 50Ā° | 20 | -13 | 3820 | 7940 | LM50 |
LM60UU |
LM60-A | 6 | 2000 | LM60-AJ | LM6O-OP | 60 | 90 | 110 | 85 | 3.15 | 86.5 | 3 | 30 | 50Ā° | 25 | -13 | 4710 | 10000 | LM60 |
LM80UU |
LM80_A | 6 | 4420 | LM80-AJ | LM8O-OP | 80 | 120 | 140 | 105.5 | 4.15 | 116 | 3 | 40 | 51Ā° | 25 | -20 | 7350 | 16000 | LM80 |
LM100UU |
LM100-A | 6 | 8600 | LM100-AJ | LMlOO-OP | 100 | 150 | 175 | 125.5 | 4.15 | 145 | 3 | 50 | 52Ā° | 30 | -20 | 14100 | 34800 | LM100 |
LM120UU |
LM120-A | 8 | 15000 | LM120-AJ | LM120-OP | 120 | 180 | 200 | 158.6 | 4.15 | 175 | 3 | 85 | 53Ā° | 30 | -25 | 16400 | 4000 | LM120 |
LM150UU |
LM150-A | 8 | 20250 | LM150-AJ | LM150-QP | 150 | 210 | 240 | 170.6 | 5.15 | 204 | 3 | 105 | 54Ā° | 40 | -25 | 21100 | 54300 | LM150 |
LM_L Series
| Nominal Part No. | Nominal Shaft Diamete (mm) |
Major Dimensions (mm) | Eccentricity (max) Ī¼m |
Basic Load Rating | Nominal Part No. |
||||||||
| Resin Retainer |
Stainless Steel Retainer |
Ball Circuit |
Weight g |
dr | D | L | B | L | D1 | Dynamic C(N) | Static Co(N) | ||
| LM3L | 4 | 3.2 | 3 | 7 | 19 | 19 | 138 | 210 | LM3L | ||||
| LM4L | 4 | 4.8 | 4 | 8 | 23 | 10 | 176 | 254 | LM4L | ||||
| LM5L | 4 | 11 | 5 | 10 | 28 | 20.4 | 1.1 | 9.6 | 10 | 256 | 412 | LM5L | |
| LM6L | LM6L-A | 4 | 16 | 6 | 12 | 35 | 77 | 1.1 | 11.5 | 15 | 323 | 530 | LM6L |
| LM8L | LM8L-A | 4 | 31 | 8 | 15 | 45 | 35 | 1.1 | 14.3 | 15 | 431 | 784 | LM8L |
| LM10L | LM10L-A | 4 | 62 | 10 | 19 | 55 | 44 | 1.3 | 18 | 15 | 588 | 1,100 | LM10L |
| LM12L | LM12L-A | 4 | 80 | 12 | 21 | 57 | 46 | 1.3 | 20 | 15 | 813 | 1,570 | LM12L |
| LM13L | LM13L-A | 4 | 90 | 13 | 23 | 61 | 46 | 1.3 | 22 | 15 | 813 | 1,570 | LM13L |
| LM16L | LM16L-A | 5 | 145 | 16 | 28 | 70 | 53 | 1.6 | 27 | 15 | 1,230 | 2,350 | LM16L |
| LM20L | LM20L-A | 5 | 180 | 20 | 32 | 80 | 61 | 1.6 | 30.5 | 20 | 1,400 | 2,740 | LM20L |
| LM25L | LM25L-A | 6 | 440 | 25 | 40 | 112 | 82 | 1.85 | 38 | 20 | 1,560 | 3.14 | LM25L |
| LM30L | LM30L-A | 6 | 480 | 30 | 45 | 123 | 89 | 1.85 | 43 | 20 | 2,490 | 5,490 | LM30L |
| LM35L | LM35L-A | 6 | 795 | 35 | 52 | 135 | 99 | 2.1 | 49 | 25 | 2,650 | 6,270 | LM35L |
| LM40L | LM40L-A | 6 | 1,170 | 40 | 60 | 151 | 121 | 2.1 | 57 | 25 | 3,430 | 8,040 | LM40L |
| LM50L | 6 | 3,100 | 50 | 80 | 192 | 148 | 2.6 | 76.5 | 25 | 6,080 | 15,900 | LM50L | |
| LM60L | 6 | 3,500 | 60 | 90 | 209 | 170 | 3.15 | 86.5 | 30 | 7,650 | 20,000 | LM60L | |
Related products
Opposite Counterbore Linear Bearing
The Single Opposite Counterbore Flanged Linear Ball Bearing series is designed for streamlined assembly and space-efficient mounting in precision linear motion systems. Featuring a unique opposite counterbore hole design, this configuration allows fasteners to be installed from the reverse side, ensuring a completely flush and unobstructed front mounting surface. Available in round, rectangular, and oval flange shapes, it provides versatile integration options for compact machinery where a clean profile is essential. This single-row bearing delivers smooth, low-friction travel and reliable performance across a wide range of industrial automation applications.
LMB Adjustable Open Linear Bearing
The LMB Adjustable Open Linear Ball Bearing, built in a synthetic resin retainer, is an inch dimension series mainly used in the US. Designed for high-precision and low-friction linear motion, this series offers three versatile structural variants to meet diverse mechanical needs: the standard LMB type for general guidance, the LMB-AJ adjustable clearance type for fine-tuning preload and eliminating play, and the LMB-OP open type for easy installation in tight spaces. With its self-lubricating retainer, it ensures smooth, quiet, and corrosion-resistant operation for various automation applications.