Original unbranded spherical roller bearing concept visualization

BEARING SPECIFICATION / 22311

22311 Spherical Roller Bearing

55 × 120 × 43 mm · Heavy radial duty with alignment flexibility. Compare the sourced reference data and specify your SANJ requirement.

Original product concept visualization

22311 dimensional schematic: bore 55 mm, outside diameter 120 mm, width 43 mm — Boundary dimension schematic · not a manufacturing drawing · not to scale

Spherical Roller Bearings

22311 at a glance

22311 identifies a spherical roller bearing reference with 55 mm bore, 120 mm outside diameter and 43 mm overall width or height.

Bore / d: 55 mm
Outside / D: 120 mm
Width / B: 43 mm

Two rows of spherical rollers accommodate angular misalignment within the selected design limits. Bore type, clearance and mounting method matter.

Enquire about 22311 ↗Download reference data ↓

Reference configuration: 22311RZ
Ratings below belong to the identified JTEKT / Koyo source record. SANJ material, internal design, performance and supply scope require a confirmed quotation and datasheet.

TECHNICAL SOURCEJTEKT / Koyo · 22311RZ ↗Source checked 2026-10-20Reference image source ↗

REFERENCE SPECIFICATION

All the details.
One clear source.

Full factual values from the source designation 22311RZ. Mounting dimensions and reference mass relate to that design; they must be checked against the final SANJ drawing.

Load ratings: kN · dimensions: mm · speed: min⁻¹ · mass: kg

22311 — JTEKT / Koyo reference data
Parameter	Reference value
d	55 mm
D	120 mm
B	43 mm
r(min.)	2 mm
Basic load ratings : Cr	296 kN
Basic load ratings : C0r	264 kN
Fatigue load limit : Cu	21.1 kN
Limiting speeds(Grease lub.)	4100 min-1
Limiting speeds(Oil lub.)	5500 min-1
Constant e	0.36
Axial load factors : Y1	1.85
Axial load factors : Y2	2.76
Axial load factors : Y0	1.81
da(min.)	65 mm
Da(max.)	110 mm
ra(max.)	2 mm
Mass(Refer.)	2.40 kg

SELECTION CONTEXT

Match the bearing
to its duty.

22311 belongs to the spherical roller bearings family. Its reference envelope is 55 mm bore, 120 mm outside diameter and 43 mm overall width or height.

Two rows of spherical rollers accommodate angular misalignment within the selected design limits. Bore type, clearance and mounting method matter.

For a manufacturing enquiry, provide the complete designation and operating conditions. Matching the dimensional envelope alone does not confirm interchangeability or equivalent performance.

Is the same size a direct replacement?

No. Matching 55 × 120 × 43 mm establishes the boundary dimensions. The full designation, tolerances, clearance, contact angle or roller arrangement, seals, cage, lubrication and performance must also be checked.

Understand bearing load ratings →

PREPARE A USEFUL ENQUIRY

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number leaves open.

A complete brief reduces assumptions and gives the quotation a clear technical basis.

Configuration

Full designation, seals or shields, accuracy, clearance, cage, material and any matched arrangement.

Operating duty

Radial and axial loads, speed, temperature, lubrication, fits, environment and expected service.

Supply requirement

Quantity, destination, packing, inspection records, drawing approval and delivery requirement.

22311 Spherical Roller Bearing

22311 at a glance

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Match the bearingto its duty.

Is the same size a direct replacement?

Specify what the modelnumber leaves open.

Configuration

Operating duty

Supply requirement

More in this bearing family.

22220 ↗

22222 ↗

22224 ↗

Let’s specify your next bearing.

All the details.
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Match the bearing
to its duty.

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number leaves open.