B=Design Modification. CAM=(CA-SKF)=One Piece Brass Cage, Guide Ring. P55=Both ring accuracy(C08)=P5 Running Accuracy (C02 and C04). W509=(Segment Lubr. Enhanc., Code W59)=Combination Of W26 (Six Lubrication Holes In Inner Ring) And W31 (SKF Spher Be
Inner (d) Inch
Outer (D) Inch
Width (B) Inch
Description from Medias
Manufacturer Part Number (MPN)
23172B CAM P55 W509Z
Bore
C - Cylindrical Bore
Seal
Z - Steel Seal on One Side
Cage Type
M - Brass Cage
External Modification
Radial Internal Play
C5 Internal Play (Higher than C4)
Precision
P5 Precision (Higher than P6)
Heat Stabilization
Special Treatment
S1 - Temperatures up to 200°C
REVIEWS
Want to get quotations?
MOST HELPFUL REVIEWS
Name : Kenji Saito
From : Japan
Time : 2025/11/24 Review:★★★★★
We use a lot of NMB micro bearings. Supplier handled small qty orders with same priority as large ones, no minimum nonsense. That flexibility helped me win contracts with smaller clients.
---- Kenji Saito
Name : Anna Kowalczyk
From : Poland
Time : 2025/11/21 Review:★★★★★
Logistics notes were detailed which speeds up customs clearance — big plus.
---- Anna Kowalczyk
Name : David Harris
From : UK
Time : 2025/11/19 Review:★★★★★
Sold several boxes of mixed-brand wheel bearings KOYO to auto garages. Price margin is fair and the tech sheet helped our mechanics pick right cross-references.
---- David Harris
Name : Lisa Montgomery
From : Puerto Rico
Time : 2025/11/15 Review:★★★★★
As an industrial parts wholesaler, I need reliable lead-times. Supplier stocked TIMKEN and FAG lines and even helped with emergency air shipments for one key client — saved their production. After that, we placed quarterly blanket orders. Service impressed my purchasing team.
---- Lisa Montgomery
Name : Jason Turner
From : New Zealand
Time : 2025/11/13 Review:★★★★★
We handle exports to small Pacific islands; shipping is tricky. This company packed NSK bearings very securely and provided all export docs. No damage, no customs headache.