Technical data
44 parametersIdentification
- Manufacturer
- INA
- Type
- Axial angular contact ball bearing
- Part number (SKU)
- ZKLN2557-2RS-XL#N1
- EAN
- 4012802079005
- Tolerance class
- Standard
Dimensions
- Bore d
- 25 mm
- Outside diameter D
- 57 mm
- Width B
- 28 mm
- Mass
- 354 g
Load ratings and operation
- Dynamic load rating C
- 30500 N
- Static load rating C₀
- 55000 N
- Sealing
- 2RS
Full manufacturer specification32 parameters · expand
- Axial runout
- 2.0 µm
- Basic dynamic load rating, axial
- 30500.0 N
- Basic static load rating, axial
- 55000.0 N
- Bearing frictional torque
- 0.4 Nm
- Bore diameter lower tolerance
- -0.005 mm
- Bore diameter upper tolerance
- 0.0 mm
- Category
- XL
- Contact angle
- 60.0 °
- Fatigue load limit, axial
- 3350.0 N
- Limiting speed for grease lubrication
- 5700.0 1/min
- Mass moment of inertia
- 0.486 kg*cm²
- Max. operating temperature
- 120.0 °C
- Maximum diameter of housing
- 48.0 mm
- Min. operating temperature
- -30.0 °C
- Minimum chamfer
- 0.3 mm
- Minimum diameter shaft
- 32.0 mm
- Outside diameter lower tolerance
- -0.01 mm
- Outside diameter upper tolerance
- 0.0 mm
- PFAS
- no
- REACH
- REACH compliant
- Recommended INA precision locknut for axial locking
- AM25
- Recommended INA precision locknut for radial locking
- ZM25
- Required locknut force axial
- 9123.0 N
- Rib diameter inner ring
- 40.5 mm
- Rigidity axial
- 750.0 N/µm
- RoHS
- RoHS compliant
- Sealing
- 2RS
- Thermally safe operating speed
- 2600.0 1/min
- Tightening torque for the recommended INA precision locknut
- 25.0 Nm
- Tilting rigidity
- 200.0 Nm/mrad
- Width lower tolerance
- -0.25 mm
- Width upper tolerance
- 0.0 mm
Classification
- Manufacturer category
- Rolling and Plain Bearings › Super Precision Bearings › Axial-super Precision Bearings › Axial-angular Contact Ball Bearings For Screw Drives
- eCl@ss class
- 23-05-10-02
- UNSPSC
- 31171507
Description
This angular contact ball bearing carries axial loads in both directions thanks to its double-direction design, with contact angles arranged to accommodate combined axial loading from either side. Bore diameter is 25.0 mm, outside diameter 57.0 mm, width 28.0 mm, and net mass is 0.354 kg. The design has no screw mounting feature. The bearing is sealed on both sides (2RS), which keeps grease in place and blocks contaminants from entering the bearing interior, reducing maintenance needs. The double-direction axial arrangement makes it suitable for applications where axial forces alternate or act simultaneously from opposite sides along the shaft axis, provided that radial loads remain minimal, as is typical for this bearing type.
ZKLN2557-2RS-XL
Common designation: ZKLN2557 2RS
Axial angular contact ball bearing
⌀25 × 57 × 28 mm
od EUR 343.55net
+ VAT 23% = EUR 422.57 gross
This item is brought in to order (about 10 working days) and we sell it to business customers. Open a business account.
Cheaper in larger quantities
| from 5 pcs | EUR 333.24 | −3% |
| from 10 pcs | EUR 329.81 | −4% |
| from 25 pcs | EUR 322.94 | −6% |
| from 50 pcs | EUR 316.07 | −8% |
Brought in to order — we confirm the date after checking with the manufacturer.
Shipping within the EU: DHL, GLS, from EUR 13.18 net. Transit time 3–5 business days after dispatch. Shipping and returns →
Buying for a company?
Open a business account →Documentation
Datasheet (PDF)RoHS / REACH compliance declaration (PDF)Opening a document for the first time can take up to a minute while the manufacturer prepares it.