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Open Linear Bearing KB-OP
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ISUTAMI BEARINGS

Open Linear Bearing KB-OP

Open Linear Bearing KB-OP
ISUTAMI KB-OP open type linear bearing, also known as KB-OP open type linear ball bearing or KB-OP open type linear bushing bearing. KB is the code name for the metric series pf linear bearings. OP is an abbreviation for open. It is suitable for European markets using metric units such as Germany and France,etc.

KB-OP open type linear bearing, the material of both bushing and steel ball is high carbon bearing steel. The ball retainer is made of steel or POM material, and the sealing ring, usually represented by U or P, is made of NBR material.
Open Linear Bearing KB-OP
ISUTAMI KB-OP open type linear bearing, also known as KB-OP open type linear ball bearing or KB-OP open type linear bushing bearing. KB is the code name for the metric series pf linear bearings. OP is an abbreviation for open. It is suitable for European markets using metric units such as Germany and France,etc.

KB-OP open type linear bearing, the material of both bushing and steel ball is high carbon bearing steel. The ball retainer is made of steel or POM material, and the sealing ring, usually represented by U or P, is made of NBR material.

Open Linear Bearing KB-OP Size Chart

Open Linear Bearing KB-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 W h h1 θ DYNAMIC
Cr(kgf)
STATIC
Co(kgf)
dr Tolerance D Tolerance L Tolerance B Tolerance D1
KB10OP 4 10 +0.008
0
19 0
-0.009
29 0
-0.2
22 0
-0.2
18 1.3 1.5 6.8 80° 0.012 38 47 0.023
KB12OP 4 12 22 32 22.9 21 1.3 1.5 7.5 78° 52 79 0.035
KB16OP 5 16 +0.009
-0.001
26 36 24.9 24.9 1.3 1.5 10 78° 59 91 0.038
KB20OP 5 20 32 0
-0.011
45 31.5 30.3 1.6 2 10 60° 0.015 88 140 0.072
KB25OP 6 25 +0.011
-0.001
40 58 0
-0.3
44.1 0
-0.3
37.5 1.85 2 12.5 60° 100 160 0.173
KB30OP 6 30 47 68 52.1 44.5 1.85 2 12.5 50° 160 280 0.267
KB40OP 6 40 +0.013
-0.002
62 0
-0.013
80 60.6 59 2.15 3 16.8 50° 0.017 220 400 0.558
KB50OP 6 50 75 100 77.6 72 2.65 3 21 50° 390 810 0.990
KB60OP 6 60 90 0
-0.015
125 0
-0.4
101.7 0
-0.4
86.5 3.15 3 27.2 54° 0.020 480 1020 1.700
Remarks:Specifications for POM retainer, steel retainer, stainless steel type, oil-less series are the same

Open Linear Bearing KB-OP Features

The outer bushing of KB-OP series linear bearing is an open type, and the opening distance (h1) as well as the opening angle (θ) vary with the specification, and the outer retaining grooves for fixing the bearing bushing when installed in a housing. The number of ball rows for KB metric series open-type linear bearings supplied by ISUTAMI 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. It is mainly divided into four intervals: 0~+0.008mm, -0.001~+0.009mm, -0.001~+0.011mm, -0.002~+0.013mm;
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: -0.009~0mm, -0.011~0mm, -0.013~0mm, -0.015~0mm;
The length (L) range is 29-125mm, and the length tolerance range varies with length, and is mainly divided into three intervals: -0.2~0mm, -0.3~0mm, -0.4~0mm;
The maximum radial eccentricity is divided into four grades of 0.012mm, 0.015mm, 0.017mm and 0.02mm according to the bearing size;
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 47-1020kgf (basic rated life is 50km);
The opening angle (θ) is in the range of 54°-80°;
KB-OP open linear bearings are generally installed in KBE standard linear bearing pillow blocks, KBB-OP standard linear bearing pillow blocks, applied with shaft support rails, and interchangeable with SKB-OP super open linear bearings.

Decomposition of the linear bearing may result in the entry of foreign matter, or badly affect the assembly accuracy of each part. Do not disassemble.

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