ISUTAMI BEARINGS
Open Linear Bearing LM-OP
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ISUTAMI BEARINGS

Open Linear Bearing LM-OP

Open Linear Bearing LM-OP
ISUTAMI LM-OP open linear bearings, also known as LM-OP open linear ball bearings or LM-OP open linear bushing bearings. LM is the code name for the Asian series in linear bearings, and OP is the abbreviation of open. This type of bearing is mainly used in Asian markets using metric units, such as Japan, Korea, and Singapore.

The bushing and steel ball of LM-OP open type linear bearing is made of high carbon bearing steel. The linear bushing is produced from a solid steel outer cylinder and incorporates an industrial strength resin retainer. The ball retainer is made of steel or synthetic resin POM material. The retaining ring, also called sealing ring (usually represented by U or P), is made of NBR.
Open Linear Bearing LM-OP
ISUTAMI LM-OP open linear bearings, also known as LM-OP open linear ball bearings or LM-OP open linear bushing bearings. LM is the code name for the Asian series in linear bearings, and OP is the abbreviation of open. This type of bearing is mainly used in Asian markets using metric units, such as Japan, Korea, and Singapore.

The bushing and steel ball of LM-OP open type linear bearing is made of high carbon bearing steel. The linear bushing is produced from a solid steel outer cylinder and incorporates an industrial strength resin retainer. The ball retainer is made of steel or synthetic resin POM material. The retaining ring, also called sealing ring (usually represented by U or P), is made of NBR.

Open Linear Bearing LM-OP Size Chart

Open Linear Bearing LM-OP

Bearing No. Number
of Ball
Rows
Mian Dimensions Eccen-
Tiricity
(MAX.)
Basic Load Rating Weight
(kg)
Inscribed
Circle
Diameter
Outer
Diameter
Length Outer Locking
Groove
W h h1 θ DYNAMIC
Cr(kgf)
STATIC
Co(kgf)
dr Tolerance D Tolerance L Tolerance B Tolerance D1
LM10OP 4 10 0
-0.009
19 0 29 0
-0.2
22 0
-0.2
18 1.3 1 6.8 80° 0.012 38 56 0.020
LM12OP 4 12 21 30 23 20 1.3 1.5 8 80° 42 61 0.024
LM13OP 4 13 23 -0.013 32 23 22 1.3 1.5 9 80° 52 79 0.032
LM16OP 5 16 28 37 26.5 27 1.6 1.5 11 80° 79 120 0.058
LM20OP 5 20 0
-0.010
32 0
-0.016
42 30.5 30.5 1.6 1.5 11 60° 0.015 88 140 0.072
LM25OP 6 25 40 59 0
-0.3
41 0
-0.3
38 1.85 2 12 50° 100 160 0.177
LM30OP 6 30 45 64 44.5 43 1.85 2.5 15 50° 160 280 0.196
LM35OP 6 35 0
-0.012
52 0
-0.019
70 49.5 49 2.1 2.5 17 50° 0.020 170 320 0.320
LM40OP 6 40 60 80 60.5 57 2.1 3 20 50° 220 410 0.464
LM50OP 6 50 80 100 74 76.5 2.6 3 25 50° 390 810 1.180
LM60OP 6 60 0
-0.015
90 0
-0.022
110 85 86.5 3.15 3 30 50° 0.025 480 1020 1.700

Open Linear Bearing LM-OP Features

The ball retainer is mounted inside the bushing together with the ball and is sealed from one or both sides of the bushing with a retaining ring.

The outer bushing of LM-OP open linear bearing has opening of an angle (θ) with outer stop grooves near each end. ISUTAMI supplies LM-OP Asian series linear bearings:
The number of ball rows varies according to the bearing size, and the range is 3-5 columns;
The inner diameter (dr) range is 10-60mm, and the inner diameter tolerance range varies with the inner diameter, and is mainly divided into four ranges of -0.009~0mm, -0.01~+0mm, -0.012~+0mm, -0.015~0mm;
The outer diameter (D) range is 19-90mm, and the outer diameter tolerance range varies with the outer diameter, and is mainly divided into four intervals of -0.013~0mm, -0.016~0mm, -0.019~0mm, -0.022~0mm;
The length (L) range is 29-110mm, and the length tolerance range varies with length, and is mainly divided into two intervals of -0.2~0mm and -0.3~0mm;
The maximum radial eccentricity is divided into four grades of 0.012mm, 0.015mm, 0.02mm and 0.025mm;
The opening angle (θ) ranges from 54° to 80°;
The basic dynamic load rating (C) ranges from 38 to 480 kgf (basic rated life is 50 km);
The basic static load rating (Co) range is 56-1020kgf (basic rated life is 50km);
All the date is close to the KB-OP European standard bearing of the same specification.

LM-OP open linear bearing is installed with SME standard linear bearing pillow blocks, SME-L long linear bearing pillow blocks, TBR standard linear bearing pillow blocks, with corresponding shaft support rail, and SLM-OP super open linear bearings can replace with it.

Unlike ball bearings, the basic dynamic load rating of LM-OP open linear bearings is less than the basic static load rating, and as the size increases, the difference in this value increases significantly, up to twice the maximum.

  • TEL:+86-574-6399-8066
  • FAX:+86-574-6399 8025
  • EMAIL: sales@isutami.com
  • ADDRESS:No.500, North 3rd Ring Road West, Cixi, Ningbo, 315300, China