+82 70-7954-6116

info@kovar.kr

Technical support: Mon–Fri 9 AM – 6 PM KST

IBC

IBC HM7018.E IBC HM7018.E Angular Contact Ball Bearing

IBC

IBC HM7018.E Angular Contact Ball Bearing 90 × 140 × 24 mm

Angular Contact Ball Bearing

RFQ

In stock

EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.

Category: Angular Contact Ball Bearing
Bore: 90 mm
Outer Ø: 140 mm
Width: 24 mm

Overview

IBC HM7018.E Angular Contact Ball Bearing supports combined radial and one-direction axial load through a defined contact angle. It is a high-speed, high-precision choice for pumps, compressors, machine tools, and spindle-related positions where axial rigidity and rotational accuracy matter.

The inner and outer ring raceways are offset to create a contact angle. Single-row, double-row, or matched arrangements can be used to meet axial load direction, preload, and rigidity requirements.

Key features

Supports combined radial and one-direction axial load
High-speed and high-accuracy operation
Preload and rigidity adjustable through matched mounting
Suitable for precision rotating assemblies

Typical applications

Machine tool spindles and support shafts
Pumps and compressors
High-speed motors
Precision gearboxes and robot drives

Selection guidance

Select by contact angle, arrangement, preload, precision class, axial load direction, and operating speed.

Symbol	Value	Description
Cr	42300 N	Basic dynamic load rating, radial
C_0r	39100 N	Basic static load rating, radial
C_u	1448 N	Fatigue limit load
n_G	11600 1/min	Limiting speed (grease)
n_O	17600 1/min	Limiting speed (oil-air)
≈m	1.23 kg	Weight
α	25 °	Contact angle

Symbol	Value	Description
d	90 mm	Bore diameter
D	140 mm	Outside diameter
B	24 mm	Width
a	39 mm	Effective load centre
d₁	108.1 mm	Shoulder diameter, inner ring
D₁	122 mm	Shoulder diameter, outer ring
r_{1,2 min}	1.5 mm	Minimum chamfer dimension
r_{3,4 min}	0.6 mm	Minimum chamfer dimension, side face

Symbol	Value	Description
d_{a min}	100 mm	Min. shoulder diameter for mounting, inner ring
D_{a max}	131.1 mm	Max. shoulder diameter for mounting, housing
D_{b max}	134.2 mm	Max. shoulder diameter, sealed side
r_{a max}	1.5 mm	Max. fillet radius
r_{b max}	0.6 mm	Max. fillet radius, side face

Symbol	Value	Description
F_{v L}	260 N	Preload force — class L (light)
S_{a L}	160 N/μm	Axial stiffness — class L (light)
S_{r L}	330 N/μm	Radial stiffness — class L (light)
F_{AK L}	750 N	Unloading force — class L (light)
F_{v M}	800 N	Preload force — class M (medium)
S_{a M}	240 N/μm	Axial stiffness — class M (medium)
S_{r M}	480 N/μm	Radial stiffness — class M (medium)
F_{AK M}	2270 N	Unloading force — class M (medium)
F_{v H}	1600 N	Preload force — class H (high)
S_{a H}	310 N/μm	Axial stiffness — class H (high)
S_{r H}	630 N/μm	Radial stiffness — class H (high)
F_{AK H}	4550 N	Unloading force — class H (high)

Code	Description
100Cr6	Rolling element material
100Cr6	Ring material
P4A	Tolerance class
MBA 90	Recommended precision locknut
High-precision angular contact ball bearing, speed-optimized HM series	Product type

datasheet pdf download

Also searched as

The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:

HM7018E
HM7018 E
HM7018
IBCHM7018E
IBC HM 7018 E
IBCHM 7018 E
IBCHM7018 E
IBC HM7018E
IBC HM 7018E
IBCHM7018

Overview

The inner and outer ring raceways are offset to create a contact angle. Single-row, double-row, or matched arrangements can be used to meet axial load direction, preload, and rigidity requirements.

Symbol

Value

Description

42300 N

Basic dynamic load rating, radial

C_0r

39100 N

Basic static load rating, radial

C_u

1448 N

Fatigue limit load

n_G

11600 1/min

Limiting speed (grease)

n_O

17600 1/min

Limiting speed (oil-air)

≈m

1.23 kg

Weight

25 °

Contact angle

Symbol

Value

Description

90 mm

Bore diameter

140 mm

Outside diameter

24 mm

Width

39 mm

Effective load centre

d₁

108.1 mm

Shoulder diameter, inner ring

D₁

122 mm

Shoulder diameter, outer ring

r_{1,2 min}

1.5 mm

Minimum chamfer dimension

r_{3,4 min}

0.6 mm

Minimum chamfer dimension, side face

Symbol

Value

Description

d_{a min}

100 mm

Min. shoulder diameter for mounting, inner ring

D_{a max}

131.1 mm

Max. shoulder diameter for mounting, housing

D_{b max}

134.2 mm

Max. shoulder diameter, sealed side

r_{a max}

1.5 mm

Max. fillet radius

r_{b max}

0.6 mm

Max. fillet radius, side face

Symbol

Value

Description

F_{v L}

260 N

Preload force — class L (light)

S_{a L}

160 N/μm

Axial stiffness — class L (light)

S_{r L}

330 N/μm

Radial stiffness — class L (light)

F_{AK L}

750 N

Unloading force — class L (light)

F_{v M}

800 N

Preload force — class M (medium)

S_{a M}

240 N/μm

Axial stiffness — class M (medium)

S_{r M}

480 N/μm

Radial stiffness — class M (medium)

F_{AK M}

2270 N

Unloading force — class M (medium)

F_{v H}

1600 N

Preload force — class H (high)

S_{a H}

310 N/μm

Axial stiffness — class H (high)

S_{r H}

630 N/μm

Radial stiffness — class H (high)

F_{AK H}

4550 N

Unloading force — class H (high)

Code

Description

100Cr6

Rolling element material

100Cr6

Ring material

P4A

Tolerance class

MBA 90

Recommended precision locknut

High-precision angular contact ball bearing, speed-optimized HM series

Product type

IBC HM7018.E Angular Contact Ball Bearing 90 × 140 × 24 mm