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IBC

IBC 7209.C IBC 7209.C Angular Contact Ball Bearing

IBC

IBC 7209.C Angular Contact Ball Bearing 45 × 85 × 19 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: 45 mm
Outer Ø: 85 mm
Width: 19 mm

Overview

IBC 7209.C 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	41000 N	Basic dynamic load rating, radial
C_0r	30000 N	Basic static load rating, radial
C_u	1111 N	Fatigue limit load
n_G	18000 1/min	Limiting speed (grease)
n_O	27000 1/min	Limiting speed (oil-air)
≈m	0.408 kg	Weight
α	15 °	Contact angle

Symbol	Value	Description
d	45 mm	Bore diameter
D	85 mm	Outside diameter
B	19 mm	Width
d_pi	59.9 mm	Injection diameter (oil-air lubrication)
a	18 mm	Effective load centre
d₁	57.5 mm	Shoulder diameter, inner ring
D₁	72.4 mm	Shoulder diameter, outer ring
r_{1,2 min}	1.1 mm	Minimum chamfer dimension
r_{3,4 min}	0.6 mm	Minimum chamfer dimension, side face

Symbol	Value	Description
d_{a min}	52.7 mm	Min. shoulder diameter for mounting, inner ring
D_{a max}	77.8 mm	Max. shoulder diameter for mounting, housing
D_{b max}	77 mm	Max. shoulder diameter, sealed side
r_{a max}	1.1 mm	Max. fillet radius
r_{b max}	0.6 mm	Max. fillet radius, side face

Symbol	Value	Description
F_{v X}	95 N	Preload force — class X (extra light)
S_{a X}	40 N/μm	Axial stiffness — class X (extra light)
S_{r X}	270 N/μm	Radial stiffness — class X (extra light)
F_{AK X}	270 N	Unloading force — class X (extra light)
F_{v L}	190 N	Preload force — class L (light)
S_{a L}	55 N/μm	Axial stiffness — class L (light)
S_{r L}	340 N/μm	Radial stiffness — class L (light)
F_{AK L}	540 N	Unloading force — class L (light)
F_{v M}	430 N	Preload force — class M (medium)
S_{a M}	80 N/μm	Axial stiffness — class M (medium)
S_{r M}	390 N/μm	Radial stiffness — class M (medium)
F_{AK M}	1210 N	Unloading force — class M (medium)
F_{v H}	860 N	Preload force — class H (high)
S_{a H}	110 N/μm	Axial stiffness — class H (high)
S_{r H}	500 N/μm	Radial stiffness — class H (high)
F_{AK H}	2420 N	Unloading force — class H (high)

Code	Description
100Cr6	Rolling element material
yes	Sealing available (2RSZ)
MBA 45	Recommended precision locknut
Single row high precision angular contact ball bearing	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:

7209C
7209 C
7209
IBC7209C
IBC 7209 C
IBC7209 C
IBC 7209C
IBC7209

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

41000 N

Basic dynamic load rating, radial

C_0r

30000 N

Basic static load rating, radial

C_u

1111 N

Fatigue limit load

n_G

18000 1/min

Limiting speed (grease)

n_O

27000 1/min

Limiting speed (oil-air)

≈m

0.408 kg

Weight

15 °

Contact angle

Symbol

Value

Description

45 mm

Bore diameter

85 mm

Outside diameter

19 mm

Width

d_pi

59.9 mm

Injection diameter (oil-air lubrication)

18 mm

Effective load centre

d₁

57.5 mm

Shoulder diameter, inner ring

D₁

72.4 mm

Shoulder diameter, outer ring

r_{1,2 min}

1.1 mm

Minimum chamfer dimension

r_{3,4 min}

0.6 mm

Minimum chamfer dimension, side face

Symbol

Value

Description

d_{a min}

52.7 mm

Min. shoulder diameter for mounting, inner ring

D_{a max}

77.8 mm

Max. shoulder diameter for mounting, housing

D_{b max}

77 mm

Max. shoulder diameter, sealed side

r_{a max}

1.1 mm

Max. fillet radius

r_{b max}

0.6 mm

Max. fillet radius, side face

Symbol

Value

Description

F_{v X}

95 N

Preload force — class X (extra light)

S_{a X}

40 N/μm

Axial stiffness — class X (extra light)

S_{r X}

270 N/μm

Radial stiffness — class X (extra light)

F_{AK X}

270 N

Unloading force — class X (extra light)

F_{v L}

190 N

Preload force — class L (light)

S_{a L}

55 N/μm

Axial stiffness — class L (light)

S_{r L}

340 N/μm

Radial stiffness — class L (light)

F_{AK L}

540 N

Unloading force — class L (light)

F_{v M}

430 N

Preload force — class M (medium)

S_{a M}

80 N/μm

Axial stiffness — class M (medium)

S_{r M}

390 N/μm

Radial stiffness — class M (medium)

F_{AK M}

1210 N

Unloading force — class M (medium)

F_{v H}

860 N

Preload force — class H (high)

S_{a H}

110 N/μm

Axial stiffness — class H (high)

S_{r H}

500 N/μm

Radial stiffness — class H (high)

F_{AK H}

2420 N

Unloading force — class H (high)

Code

Description

100Cr6

Rolling element material

yes

Sealing available (2RSZ)

MBA 45

Recommended precision locknut

Single row high precision angular contact ball bearing

Product type

IBC 7209.C Angular Contact Ball Bearing 45 × 85 × 19 mm