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NHBBME-1211DHAngular Contact Ball Bearing – 55 mm ID, 100 mm OD, 21 mm Width, 15° Contact Angle, ABEC 7, Heavy Preload

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1 in stock

Super-precision angular contact ball bearing pair, 55 x 100 x 21 mm, 15° contact angle, ABEC 7 / P4, heavy preload. Matched duplex set, 2 Pcs, phenolic cage.

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$272.44

1 in stock

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Specifications

Key Specifications

MFR / BrandNHBB
MPNME-1211DH
ModelME-1211-DUH
Bearing TypeAngular Contact Ball Bearing, Open
ID55 mm
OD100 mm
Width21 mm

Technical Specifications

MaterialBearing Steel
SeriesMER
PreloadHeavy
Dynamic Load Rating12,100 lbf
Static Load Rating9,150 lbf
Precision RatingABEC 7 / P4
Rolling ElementsBall
Cage MaterialPhenolic
Number Of Rows1
Bore TypeStraight
Snap Ring IncludedNo
Harmonization Code8482.10.50
Mounting ArrangementUniversal (DB, DF or DT)
Base NumberMER-211
Mpn VariantsME-1211DH, ME-1211-DUH, ME-1211-DH, ME1211DH, 7211-C-TPA-P4-DUH, MER-211
Precision ClassABEC 7 / P4
Additional AttributesBall complement: 14 x 9/16 in. Inner land diameter: 2.713 in. Outer land diameter: 3.389 in. Max fillet radius: 0.059 in.
Contact Angle15°

Cross-References

Cross Reference 1Fafnir 2MM211WI-CR-DUH – same envelope, 15°, heavy preload
Cross Reference 2FAG B7211-C-T-P4S-DUH – 15°, P4S class, heavy preload
Cross Reference 3NSK 7211CTYNDUHP4 – 15°, P4, heavy preload, polyamide cage
Cross Reference 4SKF 7211 CD/P4ADGC – same envelope, 15°, medium preload
Cross Reference 5NHBB ME-1211DM – same bearing, medium preload
Cross Reference 6NHBB ME-1211DL – same bearing, light preload
Seller Part Number: B-EF2B1#SIEDXM

Product Description

What this part is

NHBB ME-1211DH is a matched pair of super-precision angular contact ball bearings in the 7211 envelope, built by NHBB’s HiTech Division for machine tool spindles. Bore Diameter: 55 mm. Outside Diameter: 100 mm. Overall Width: 21 mm per bearing. Contact Angle: 15°. Precision Class: ABEC 7 / P4.

Decoding the designation

ME-1211 — NHBB metric angular contact size on basic number MER-211: dimension series 02, 55 mm bore, outer ring relieved, non-separable.

DH / DUH — duplex universal set, heavy preload. The carton cross 7211-C-TPA-P4-DUH reads the same.

7211-C-TPA-P4 — ISO 7211 envelope, 15° contact angle, phenolic cage, P4 tolerance.

What these specs mean in practice

Dynamic Load Rating: 12,100 lbf per bearing. Static Load Rating: 9,150 lbf per bearing. Rolling Elements: 14 balls, 9/16 in diameter. Cage Material: Phenolic. Closure Type: Open. Heavy preload gives the highest spindle stiffness of the light, medium and heavy preload levels.

Mounting data

Maximum shaft or housing fillet radius: 0.059 in. Inner land diameter: 2.713 in. Outer land diameter: 3.389 in. Bore Type: Straight. Snap ring: No.

Quantity and configuration

Unit Quantity: 2 Pcs, one matched duplex pair. Preload: Heavy. Mounting Arrangement: Universal, for back-to-back, face-to-face or tandem mounting.

Interchange guidance

Same envelope, angle, class and heavy preload: FAG B7211-C-T-P4S-DUH, NSK 7211CTYNDUHP4 (polyamide cage), Fafnir 2MM211WI DUH. The SKF 7211 CD/P4ADGC is the same envelope and angle at medium preload, the NHBB ME-1211DM is medium preload and the ME-1211DL is light preload.

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