At 30x72x19 mm and a unit weight of 0.35 kg, the installation envelope is fixed; further technical details are held in the specification table. This variant features a contact seal. The deep groove ball bearing is the most widely built rolling bearing type, and the reason is how little it asks: it carries radial load, supports moderate axial load in both directions, and demands little of the surrounding design.
The deep, closely conforming raceway grooves in the inner and outer ring capture the balls positively, so the bearing takes radial load and moderate axial load in both directions without a second bearing position to oppose it. Because the ball touches the raceway at a point, friction and heat stay low — the precondition for high speeds and for grease-for-life designs.
The limits follow from that same geometry: the small contact area caps load capacity against a roller bearing of equal size, and the bearing tolerates misalignment within narrow limits only, since angular error transfers straight into the raceway grooves. Seats in shaft and housing must therefore be aligned and geometrically accurate; where shaft deflection is expected, a self-aligning type belongs in that position.
The contact seal bears against its counterface and closes the rolling chamber against dust, splash water and wash-out; in return it raises frictional torque and limits permissible speed. Rings and rolling elements are made of through-hardened standard bearing steel. The normal radial clearance recorded corresponds to the standard class and suits ordinary fits and temperature conditions.
ManufacturerNACHI
Bearing typeDeep-groove ball bearings
Bore d30 mm
Outer Ø D72 mm
Width B19 mm
Dyn. load C26.7 kN(Catalogue value, not verified)
Stat. load C₀15 kN(Catalogue value, not verified)
Reference speed10,000 min⁻¹(Catalogue value, not verified)
Weight0.35 kg
Sealscontact seal on one side
Clearancenormal radial internal clearance, narrowed range
Cagepressed steel cage
Materialstandard bearing steel
Tolerancetolerance class P0/PN (ABEC 1)
Bore typecylindrical bore
€7.32/ pc
incl. VAT, plus shipping · price drops with quantity
In stock
Typically ready to ship in 1–2 days
In stock · ships via DPD, UPS or Deutsche Post
QtyUnit priceDisc.
1 – 4€7.32—
5 – 9€7.10−3 %
10 – 24€6.95−5 %
25 – 49€6.73−8 %
50 – 99€6.59−10 %
4 more for −3% volume discount
From 100 pcs: price and lead time on request – subject to review.
Total (1 pc)€7.32
NACHI 6306-NSE9CM Kugellager (30x72x19)
— 30 x 72 x 19 mm
Response within 4 business hours
✓Free shipping over €100 · 14-day returns
✓Purchase on invoice – first order paid before dispatch, then 14-day terms for approved business customers
Same dimensions means the same bearing type and matching main dimensions (d × D × B). Sealing, cage, internal clearance and execution (e.g. material, precision, grease fill) are encoded in the suffix and may differ — please check before ordering. Equivalent additionally means the same sealing, internal clearance and tolerance class; the cage and other suffix features (e.g. lubrication groove) may differ.
