Ball Bearing Steels

Application (SAE-52100):

Supreme manufactures common ball bearings constructed of SAE 52100 chromium-alloy, high-carbon ball bearing steel, which is suitable for most applications. Further, we also manufacture ball and rollers of bearings and inner outer rings, top rollers of spindles, threading taps, fuel injection component.

In addition, we manufacture the application-specific grades of ball bearing steels as described below:

Grade  Their application
303 Highly suitable for manufacturing of machined components such nozzles, couplings, threaded bars, machined shafts and other
critical applications.
304 &
304 L
Suitable for Food processing machines, Furniture, Airport trolleys, Handles for buckets, Desks, Drawers and other machined components like fasteners, etc.
316 &
316 L
Suitable for tough machined components for Chemical, Petrochemical and Power Generation Industries, Threaded Bars, Critical Shafts etc.
410, 420 & 416 Suitable for Pump shafts, Surgical instruments, Kitchenware, Automotive component, etc.
440-C Suitable for professional cutlery, balls, wire drawing and bar

 

Chemical composition / Equivalent Grades of Ball Bearing Steels produced by Supreme:

Standard  DIN AISI BS AFNOR UNI CSN
  1.3505 E52100 S.135 100Cr6 100Cr6 14109

 

Composition  C Cr Si Mn Pmax Smax
  0.95-1.10 1.30-1.60 0.15-0.35 0.25-0.45 0.025 0.025

 

Hardness / Tensile Strength:

Wire Rod Wire for ball/roller Wire for needle
Hardness HRB 88 - 92 94 - 97 ----
Hardness BHN 175 - 193 204 - 221 266 - 311
Tensile Strength (N/mm2) 590 - 650 690 - 750 900 - 1050