Rollwick
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Unground bearing rings and rollers laid out on a grinding machine table

Bearing manufacturer and exporter

Rolling bearings groundand heat treated in Jinan

Five families, ISO 492 and DIN 620 tolerances, batch traceability from heat treatment to packing.

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12Mbearings a year
5bearing families
Heat treated bearing rings in a steel basket at the furnace mouthBatch RW-2602hardened and ground

Product range

Five bearing families

See each family in detail
Cutaway deep groove ball bearing with one row of steel balls on a dark grey seamless backgroundTapered roller bearing cone with a row of tapered rollers on a dark grey seamless backgroundCutaway spherical roller bearing with two rows of barrel rollers on a dark grey seamless backgroundCylindrical roller bearing with a full ring of rollers held by a brass cageThrust ball bearing taken apart with shaft washer, housing washer and a row of balls

Two rows of barrel rollers on a spherical raceway.

  1. 01

    Deep groove ball

    6004 · 6205 · 6206 · 6308 — bores 20–40 mm
  2. 02

    Tapered roller

    30205 · 30206 · 32210 — single row, 25–50 mm
  3. 03

    Spherical roller

    21308 · 22213 — self-aligning, 40–65 mm
  4. 04

    Cylindrical roller

    NU206 · NU308 — high radial load
  5. 05

    Thrust & special

    51105 · 51206 — axial load

Interchange

Interchange lookup

Pick a bearing type and a bore to see our equivalent, then carry the designation into the quote.

Recommended equivalent

6206

Bore d
30 mm
Outside D
62 mm
Width B
16 mm
Tolerance
P6

Stocked sizes

  • 6004
  • 6205
  • 6206
  • 6308
  • 30205
  • 30206
  • 32210
  • 21308
  • 22213
  • NU206
  • NU308

d × D × B in mm · full matrix and every size step on the interchange page

Open the full interchange matrix

Plant and quality

Ground and tested in house

Every batch is heat treated, ground and noise tested under one roof — the same line that signs the batch record.

12Mbearings a year
5bearing families
32export markets
1.2µmroundness held
Grinding shop floor with a row of grinding and superfinishing machines
  • ISO 9001:2015
  • IATF 16949
  • ISO 14001
  • ISO 492
  • DIN 620
  • RoHS

Standards held on the sizes shown · certificate numbers and per-model coverage on the certifications page

See the plant and QC

Custom options

Built to your drawing

Macro of a brass cage riveted around a bearing rollerCages and sealingSteel, brass or nylon cages; open, ZZ or 2RS.
Macro of a bearing face sealed with a black rubber sealClearance and preloadC2, C3, C4 and C5; matched pairs on request.
Two matched bearing rings on an inspection plate with a feeler gauge and a dial indicatorTolerance and noiseP6 standard, P5 on request; noise tested pairs.

Send a drawing for review

Applications

Where they run

Continuous casting roller table inside a steel millIn serviceSteel and miningContinuous casting and roller tables, heavy radial loadIndustrial gearbox and pump set on concrete foundations in a plant roomIn serviceGearboxes and pumpsLow noise pairs for gearbox and pump shaftsDismantled agricultural and truck wheel hub assembly on a workshop benchIn serviceAgricultural and automotive aftermarketSealed units for PTO and wheel hub
See applications in the field
Finished sealed bearings, a vernier caliper and a handwritten size card on a stainless steel assembly bench

Export desk

Request a quote

Send the designation or the dimensions, the quantity and the destination port. One working day to answer.

export@rollwick.example.com

500 pieces per size, mixed sizes accepted · 25–35 days after order confirmation · FOB Qingdao

Technical limits stay optional — a designation and a quantity are enough to start.