7022CTYNSULP4 110X170X28 DALUO ABEC-7 Super-precision Angular Contact Ball Bearings Polyamide Resin Cage
Super-precision, high-capacity, single row angular contact ball bearing
These super-precision, high-capacity, single row angular contact ball bearings, with 15°/25° contact angle, accommodate radial and axial loads acting simultaneously, where the axial load acts in one direction only. They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures.
- Very high running accuracy
- Very high load carrying capacity
- Relatively high speed and stiffness
Applicable options
1. Prefixes
- – Open bearing (no designation prefix)
- S Sealed bearing
2. Basic designation
Bearing series
- 718 In accordance with ISO dimension series 18
- 719 In accordance with ISO dimension series 19
- 70 In accordance with ISO dimension series 10
- 72 In accordance with ISO dimension series 02
Bearing size
- 6 6 mm bore diameter
- 7 7 mm bore diameter
- 8 8 mm bore diameter
- 9 9 mm bore diameter
- 00 10 mm bore diameter
- 01 12 mm bore diameter
- 02 15 mm bore diameter
- 03 17 mm bore diameter
- 04 to 72 (x5) 20 mm to 360 mm bore diameter
3. Suffixes - Internal design
- CD 15° contact angle, high-capacity D design
- ACD 25° contact angle, high-capacity D design
- CE 15° contact angle, high-speed E design
- ACE 25° contact angle, high-speed E design
4. Suffixes - External design (seals, snap ring groove, etc.)
Single bearing – execution and preload
- – Single standalone bearing (no designation suffix) (718 .. D, 719 .. D, 70 .. D, 72 .. D, 719 .. E, 70 .. E, 719 .. B and 70 .. B series)
- G Single, universally matchable, zero preload (S70 .. W series)
- GA Single, universally matchable, extra light preload (719 .. D, 70 .. D and 72 .. D series)
- GA Single, universally matchable, light preload (718 .. D, 719 .. E, 70 .. E, 719 .. B and 70 .. B series)
- GB Single, universally matchable, light preload (719 .. D, 70 .. D and 72 .. D series)
- GB Single, universally matchable, moderate preload (718 .. D, 719 .. E, 70 .. E, 719 .. B and 70 .. B series)
- GC Single, universally matchable, moderate preload (719 .. D, 70 .. D and 72 .. D series)
- GC Single, universally matchable, heavy preload (718 .. D, 719 .. E, 70 .. E, 719 .. B and 70 .. B series)
- GD Single, universally matchable, heavy preload (719 .. D, 70 .. D and 72 .. D series)
5. Suffixes - Cage design
- – (no designation suffix)
- Glass fibre reinforced PEEK, outer ring / ball centred for S70 .. W series
- Cotton fabric reinforced phenolic resin or carbon fibre reinforced PEEK, outer ring centred for other series
- MA Machined brass, outer ring centred
- TNHA Glass fibre reinforced PEEK, outer ring centred
- TP Glass fibre reinforced PA46, ball centred
6.1 Suffixes - Materials, heat treatment
- – Carbon chromium steel (no designation suffix)
- HC Balls made of bearing grade silicon nitride Si3N4 (hybrid bearing)
6.2 Suffixes - Accuracy, clearance, preload, quiet running, direct oil-air lubrication features
Accuracy
- P4 Dimensional and geometrical tolerances in accordance with ISO tolerance class 4
- P4A Dimensional tolerances in accordance with ISO tolerance class 4, geometrical tolerances in accordance with SKF internal tolerances
- P4B Dimensional tolerances in accordance with ISO tolerance class 4, bore and outside diameter and geometrical tolerances in accordance with SKF internal tolerances
- P4C Dimensional and geometrical tolerances in accordance with ISO tolerance class 4
- P2 Dimensional and geometrical tolerances in accordance with ISO tolerance class 2
- PA9A Dimensional and geometrical tolerances in accordance with ISO tolerance class 2
Lubrication features
- H Two lubrication holes on the non-thrust side of the outer ring (direct oil-air lubrication)
- H1 Two lubrication holes on the thrust side of the outer ring (direct oil-air lubrication)
- H2 Two lubrication holes on the non-thrust side of the outer ring (grease lubrication)
- L Annular groove with two lubrication holes on the non-thrust side of the outer ring and two annular grooves fitted with O-rings in the outer ring (direct oil-air lubrication)
- L1 Annular groove with two lubrication holes on the thrust side of the outer ring and two annular grooves fitted with O-rings in the outer ring (direct oil-air lubrication)
- L2 Annular groove with two lubrication holes on the non-thrust side of the outer ring and two annular grooves fitted with O-rings in the outer ring (grease lubrication)
- L2A Annular groove with one lubrication hole on the non-thrust side of the outer ring and two annular grooves fitted with O-rings in the outer ring (grease lubrication)
- LA Annular groove with one lubrication hole on the non-thrust side of the outer ring and two annular grooves fitted with O-rings in the outer ring (suitable for lubrication with Injection Oiler - Airless)
6.3 Suffixes - Bearing sets, matched bearings
Arrangement
- DB Set of two bearings arranged back-to-back <>
- DF Set of two bearings arranged face-to-face ><
- DT Set of two bearings arranged in tandem <<
- DG Set of two bearings for universal matching
- TBT Set of three bearings arranged back-to-back and tandem <>>
- TFT Set of three bearings arranged face-to-face and tandem ><<
- TT Set of three bearings arranged in tandem <<<
- TG Set of three bearings for universal matching
- QBC Set of four bearings arranged tandem back-to-back <<>>
- QFC Set of four bearings arranged tandem face-to-face >><<
- QBT Set of four bearings arranged back-to-back and tandem <>>>
- QFT Set of four bearings arranged face-to-face and tandem ><<<
- QT Set of four bearings arranged in tandem <<<<
- QG Set of four bearings for universal matching
- PBC Set of five bearings arranged tandem back-to-back <<>>>
- PFC Set of five bearings arranged tandem face-to-face >><<<
- PBT Set of five bearings arranged back-to-back and tandem <>>>>
- PFT Set of five bearings arranged face-to-face and tandem ><<<<
- PT Set of five bearings arranged in tandem <<<<<
- PG Set of five bearings for universal matching
Preload
- – Zero preload, no designation suffix (S70 .. W series)
- A Extra light preload (719 .. D, 70 .. D and 72 .. D series)
- A Light preload (718 .. D, 719 .. E, 70 .. E, 719 .. B and 70 .. B series)
- L Light preload – only for matched bearings sets in TBT, TFT, QBT and QFT arrangements (718 .. D, 719 .. E and 70 .. E series)
- B Light preload (719 .. D, 70 .. D and 72 .. D series)
- B Moderate preload (718 .. D, 719 .. E, 70 .. E, 719 .. B and 70 .. B series)
- M Moderate preload – only for matched bearings sets in TBT, TFT, QBT and QFT arrangements (718 .. D, 719 .. E and 70 .. E series)
- C Moderate preload (719 .. D, 70 .. D and 72 .. D series)
- C Heavy preload (718 .. D, 719 .. E, 70 .. E, 719 .. B and 70 .. B series)
- F Heavy preload – only for matched bearings sets in TBT, TFT, QBT and QFT arrangements (718 .. D, 719 .. E and 70 .. E series)
- D Heavy preload (719 .. D, 70 .. D and 72 .. D series)
- G... Special preload, expressed in daN e.g. G240 (718 .. D, 719 .. D, 70 .. D, 72 .. D, 719 .. E, 70 .. E, 719 .. B and 70 .. B series)
