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RHPSuper Precision Angular Contact Ball Bearing – 150 mm ID, 225 mm OD, 35 mm Width, 25° Contact Angle, P4, Light Preload, Open

Condition: New

Availability:

1 in stock

Super precision angular contact ball bearing, 150 x 225 x 35 mm, 25° contact angle, P4 spindle precision, light preload, machined phenolic cage, open.

List Price

$1,054.84

1 in stock

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Specifications

Key Specifications

MFR / BrandRHP
Model7030E T SUL P4 / B-7030-X3-T-UL-EP7 3MM9130 WI CR SUL
Bearing TypeAngular Contact Ball Bearing, Open
ID150 mm
OD225 mm
Width35 mm

Technical Specifications

MaterialChrome bearing steel
Series70 (ISO Dimension Series 10)
Base Number7030
Industry Termsspindle bearing; super precision angular contact; machine tool bearing; ABEC 7 bearing; EP7
Common Misspellings7030 ET SUL P4; 7030ETSUL P4; RHP 7030 ETSULP4
Application TypesMachine tool spindles; grinding spindles; high-speed rotary tables; precision gearboxes
Bore Shaft Size150 mm (5.9055 in)
Mpn Variants7030ETSULP4; 7030-E-T-SUL-P4; 7030 E T SUL P4; B-7030-X3-T-UL-EP7; B7030X3TAULEP7; 3MM9130WICRSUL; 3MM9130WI
Rolling ElementsBalls
Number Of Rows1
Bore TypeStraight
Snap Ring IncludedNo
Harmonization Code8482.10.50
Part Number7030ETSULP4
Seller Part Number: B-DF2#YRKANH

Product Description

What this part is

RHP 7030ETSULP4 super precision angular contact ball bearing. Bore: 150 mm. Outside diameter: 225 mm. Width: 35 mm. Series: 70, ISO dimension series 10. Single row, open, straight bore, universally faced. Manufactured in the United Kingdom.

Decoding the designation

Contact Angle: 25°. Cage: machined laminated phenolic resin, outer ring guided. Grouping: SU, single universal. Preload: Light. Precision Grade: P4, equivalent to EP7, ABEC 7 and ISO Class 4.

What these specs mean in practice

Dynamic Load Rating: 143 kN. Static Load Rating: 160 kN. Limiting speed: 7,900 rpm on oil/air lubrication and 5,100 rpm on grease. A 25° contact angle carries more thrust and less speed than a 15°. P4 holds tighter running accuracy, which lowers runout and vibration in a spindle: inner ring radial runout 6 µm maximum, outer ring radial runout 10 µm maximum.

Preload and stiffness

Axial preload for a light-preload pair of this size and angle: 1,850 N. Axial stiffness at light preload: 446 N/µm. Light preload suits applications where loads and speeds are moderate. Preloaded bearings are set at manufacture, so no internal clearance value applies.

Quantity and configuration

One bearing. Universal face control means the inner and outer rings are the same width and the face steps are pre-adjusted, so two bearings of this designation mount back-to-back, face-to-face or in tandem at the marked preload without ground spacers.

Mounting data

Inner ring abutment diameter d1: 162 mm minimum. Outer ring abutment diameters D1 and D2: 213 mm and 218 mm maximum. Fillet radii r and r1: 2.5 mm and 1.5 mm minimum. Effective load centre a: 61.2 mm. Lubrication jet pitch circle diameter: 178.1 mm. Internal free volume: 171.2 cm3. Maximum recommended operating temperature: 120 °C. Rings and balls: SAE 52100 through-hardened chrome bearing steel. Mass: 4.164 kg (9.18 lb).

Interchange guidance

Carton designations: 7030ETSULP4, 7030-E-T-SUL-P4, B-7030-X3-T-UL-EP7, 3MM9130WICRSUL. Fafnir 3MM9130WI is the 25° equivalent envelope. NSK 7030A5TRSULP4 is the current-scheme equivalent at 25° with the same outer-ring-guided phenolic cage. SKF 7030 ACD/P4ADGA is a 25° light-preload equivalent.

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