IBC
Angular Contact Ball Bearing
RFQ
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
IBC CBHM7021.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.
Select by contact angle, arrangement, preload, precision class, axial load direction, and operating speed.
| Symbol | Value | Description |
|---|---|---|
| Cr | 49000 N | Basic dynamic load rating, radial |
| C0r | 34000 N | Basic static load rating, radial |
| Cu | 1259 N | Fatigue limit load |
| nG | 13100 1/min | Limiting speed (grease) |
| nO | 19900 1/min | Limiting speed (oil-air) |
| ≈m | 1.56 kg | Weight |
| α | 25 ° | Contact angle |
| Symbol | Value | Description |
|---|---|---|
| d | 105 mm | Bore diameter |
| D | 160 mm | Outside diameter |
| B | 26 mm | Width |
| a | 44 mm | Effective load centre |
| d1 | 125.2 mm | Shoulder diameter, inner ring |
| D1 | 140 mm | Shoulder diameter, outer ring |
| r1,2 min | 2 mm | Minimum chamfer dimension |
| r3,4 min | 1 mm | Minimum chamfer dimension, side face |
| Symbol | Value | Description |
|---|---|---|
| da min | 116 mm | Min. shoulder diameter for mounting, inner ring |
| Da max | 150 mm | Max. shoulder diameter for mounting, housing |
| Db max | 153.8 mm | Max. shoulder diameter, sealed side |
| ra max | 2 mm | Max. fillet radius |
| rb max | 1 mm | Max. fillet radius, side face |
| Symbol | Value | Description |
|---|---|---|
| Fv L | 160 N | Preload force — class L (light) |
| Sa L | 170 N/μm | Axial stiffness — class L (light) |
| Sr L | 340 N/μm | Radial stiffness — class L (light) |
| FAK L | 460 N | Unloading force — class L (light) |
| Fv M | 490 N | Preload force — class M (medium) |
| Sa M | 240 N/μm | Axial stiffness — class M (medium) |
| Sr M | 490 N/μm | Radial stiffness — class M (medium) |
| FAK M | 1400 N | Unloading force — class M (medium) |
| Fv H | 990 N | Preload force — class H (high) |
| Sa H | 310 N/μm | Axial stiffness — class H (high) |
| Sr H | 630 N/μm | Radial stiffness — class H (high) |
| FAK H | 2810 N | Unloading force — class H (high) |
| Code | Description |
|---|---|
| Si3N4 ceramic (hybrid) | Rolling element material |
| 100Cr6 | Ring material |
| P4A | Tolerance class |
| MBA 105 | Recommended precision locknut |
| High-precision angular contact ball bearing, speed-optimized HM series, hybrid (ceramic balls) | Product type |
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:
CBHM7021ECBHM7021 ECBHM7021IBCCBHM7021EIBC CBHM 7021 EIBCCBHM 7021 EIBCCBHM7021 EIBC CBHM7021EIBC CBHM 7021EIBCCBHM7021CBHMRFQ
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