Technical data

44 parameters

Identification

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.

INA

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

To orderdate to be confirmed

This item is brought in to order (about 10 working days) and we sell it to business customers. Open a business account.

ZKLN2557-2RS-XL—
EUR 343.55

Cheaper in larger quantities

from 5 pcsEUR 333.24−3%
from 10 pcsEUR 329.81−4%
from 25 pcsEUR 322.94−6%
from 50 pcsEUR 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 →

Symbol (SKU)ZKLN2557-2RS-XL#N1
EAN4012802079005
Wymiary⌀25 × 57 × 28 mm
Masa354 g

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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.

Need fitting, lubrication or a vibration check?