Balls - Checking - Stainless Steel - Standard

Balls -> Checking -> Stainless Steel -> Standard

There are 8 products in the sub-categories of Balls - Checking - Stainless Steel - Standard. Browse the Balls - Checking - Stainless Steel - Standard products table.

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Category Details

A selection of Standard Stainless Steel Checking Balls. 440C Hardened to RC 55-58.

  • Checking balls are precision balls used in various applications for dimensional checking, calibration, and verification of sizes and dimensions.
  • These balls are typically made of high-quality materials with tight tolerances to ensure accurate measurements.
  • Checking balls are often used in coordinate measuring machines (CMM) and other metrology equipment to verify the accuracy of machined parts and components.
  • Ball and shank are concentric within 5 microns (0.0002 in.) TIR.
  • Weld between ball and shank is designed so the ball will fall off if subject to unusually heavy lateral force, preventing set up and inspection errors that may occur because of a bent shaft.

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A more concise listing may be found in the Balls - Checking - Stainless Steel - Standard category on the Small Parts & Bearings online store.
Diameter (A) Shank Diameter (D) Base to Centre (B) Shoulder to Centre (C) Indicative
Image
Diameter (A)
3.175
mm
+/- 0.0051
(Equiv. 0.125 in.)
Shank Diameter (D)
3.188
mm
+/- 0.0051
(Equiv. 0.126 in.)
Base to Centre (B)
9.525
mm
+/- 0.1270
(Equiv. 0.375 in.)
Shoulder to Centre (C)
2.383
mm
+/- 0.0051
Checking Balls - 3.175x3.188x9.525 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-00318-S440
Checking Balls - 3.175x3.188x9.525 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$252.23 AUD
$252.23 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A) Shank Diameter (D) Base to Centre (B) Shoulder to Centre (C) Indicative
Image
Diameter (A)
3.175
mm
+/- 0.0051
(Equiv. 0.125 in.)
Shank Diameter (D)
3.188
mm
+/- 0.0051
(Equiv. 0.126 in.)
Base to Centre (B)
9.525
mm
+/- 0.1270
(Equiv. 0.375 in.)
Shoulder to Centre (C)
2.383
mm
+/- 0.0051
Checking Balls - 3.175x3.188x9.525 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-00318-S440
Checking Balls - 3.175x3.188x9.525 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$252.23 AUD
$252.23 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
6.350
mm
+/- 0.0051
(Equiv. 0.25 in.)
Shank Diameter (D)
3.167
mm
+/- 0.0051
(Equiv. 0.125 in.)
Base to Centre (B)
14.224
mm
+/- 0.1270
(Equiv. 0.56 in.)
Shoulder to Centre (C)
5.080
mm
+/- 0.0051
Checking Balls - 6.35x3.167x14.224 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-00635-S440
Checking Balls - 6.35x3.167x14.224 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$114.68 AUD
$137.62 AUD $114.68 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
6.350
mm
+/- 0.0051
(Equiv. 0.25 in.)
Shank Diameter (D)
3.167
mm
+/- 0.0051
(Equiv. 0.125 in.)
Base to Centre (B)
14.224
mm
+/- 0.1270
(Equiv. 0.56 in.)
Shoulder to Centre (C)
5.080
mm
+/- 0.0051
Checking Balls - 6.35x3.167x14.224 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-00635-S440
Checking Balls - 6.35x3.167x14.224 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$114.68 AUD
$137.62 AUD $114.68 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
9.525
mm
+/- 0.0051
(Equiv. 0.375 in.)
Shank Diameter (D)
4.755
mm
+/- 0.0051
(Equiv. 0.187 in.)
Base to Centre (B)
19.050
mm
+/- 0.1270
(Equiv. 0.75 in.)
Shoulder to Centre (C)
7.620
mm
+/- 0.0051
Checking Balls - 9.525x4.755x19.05 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-00953-S440
Checking Balls - 9.525x4.755x19.05 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$143.59 AUD
$172.31 AUD $143.59 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
9.525
mm
+/- 0.0051
(Equiv. 0.375 in.)
Shank Diameter (D)
4.755
mm
+/- 0.0051
(Equiv. 0.187 in.)
Base to Centre (B)
19.050
mm
+/- 0.1270
(Equiv. 0.75 in.)
Shoulder to Centre (C)
7.620
mm
+/- 0.0051
Checking Balls - 9.525x4.755x19.05 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-00953-S440
Checking Balls - 9.525x4.755x19.05 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$143.59 AUD
$172.31 AUD $143.59 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (D)
6.342
mm
+/- 0.0051
(Equiv. 0.25 in.)
Base to Centre (B)
23.876
mm
+/- 0.1270
(Equiv. 0.94 in.)
Shoulder to Centre (C)
10.160
mm
+/- 0.0051
Checking Balls - 12.7x6.342x23.876 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-01270-S440
Checking Balls - 12.7x6.342x23.876 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$163.86 AUD
$196.64 AUD $163.86 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (D)
6.342
mm
+/- 0.0051
(Equiv. 0.25 in.)
Base to Centre (B)
23.876
mm
+/- 0.1270
(Equiv. 0.94 in.)
Shoulder to Centre (C)
10.160
mm
+/- 0.0051
Checking Balls - 12.7x6.342x23.876 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-01270-S440
Checking Balls - 12.7x6.342x23.876 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$163.86 AUD
$196.64 AUD $163.86 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
15.875
mm
+/- 0.0051
(Equiv. 0.625 in.)
Shank Diameter (D)
7.930
mm
+/- 0.0051
(Equiv. 0.312 in.)
Base to Centre (B)
26.924
mm
+/- 0.1270
(Equiv. 1.06 in.)
Shoulder to Centre (C)
11.430
mm
+/- 0.0051
Checking Balls - 15.875x7.93x26.924 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-01588-S440
Checking Balls - 15.875x7.93x26.924 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$219.14 AUD
$262.96 AUD $219.14 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
15.875
mm
+/- 0.0051
(Equiv. 0.625 in.)
Shank Diameter (D)
7.930
mm
+/- 0.0051
(Equiv. 0.312 in.)
Base to Centre (B)
26.924
mm
+/- 0.1270
(Equiv. 1.06 in.)
Shoulder to Centre (C)
11.430
mm
+/- 0.0051
Checking Balls - 15.875x7.93x26.924 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-01588-S440
Checking Balls - 15.875x7.93x26.924 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$219.14 AUD
$262.96 AUD $219.14 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
19.050
mm
+/- 0.0127
(Equiv. 0.75 in.)
Shank Diameter (D)
9.517
mm
+/- 0.0051
(Equiv. 0.375 in.)
Base to Centre (B)
31.750
mm
+/- 0.1270
(Equiv. 1.25 in.)
Shoulder to Centre (C)
12.700
mm
+/- 0.0051
Checking Balls - 19.05x9.517x31.75 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-01905-S440
Checking Balls - 19.05x9.517x31.75 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$281.50 AUD
$337.80 AUD $281.50 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
19.050
mm
+/- 0.0127
(Equiv. 0.75 in.)
Shank Diameter (D)
9.517
mm
+/- 0.0051
(Equiv. 0.375 in.)
Base to Centre (B)
31.750
mm
+/- 0.1270
(Equiv. 1.25 in.)
Shoulder to Centre (C)
12.700
mm
+/- 0.0051
Checking Balls - 19.05x9.517x31.75 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-01905-S440
Checking Balls - 19.05x9.517x31.75 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$281.50 AUD
$337.80 AUD $281.50 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
22.225
mm
+/- 0.0127
(Equiv. 0.875 in.)
Shank Diameter (D)
11.105
mm
+/- 0.0051
(Equiv. 0.437 in.)
Base to Centre (B)
36.576
mm
+/- 0.1270
(Equiv. 1.44 in.)
Shoulder to Centre (C)
15.240
mm
+/- 0.0051
Checking Balls - 22.225x11.105x36.576 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-02223-S440
Checking Balls - 22.225x11.105x36.576 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$253.95 AUD
$304.75 AUD $253.95 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
22.225
mm
+/- 0.0127
(Equiv. 0.875 in.)
Shank Diameter (D)
11.105
mm
+/- 0.0051
(Equiv. 0.437 in.)
Base to Centre (B)
36.576
mm
+/- 0.1270
(Equiv. 1.44 in.)
Shoulder to Centre (C)
15.240
mm
+/- 0.0051
Checking Balls - 22.225x11.105x36.576 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-02223-S440
Checking Balls - 22.225x11.105x36.576 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$253.95 AUD
$304.75 AUD $253.95 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
25.400
mm
+/- 0.0127
(Equiv. 1 in.)
Shank Diameter (D)
12.692
mm
+/- 0.0051
(Equiv. 0.5 in.)
Base to Centre (B)
41.148
mm
+/- 0.1270
(Equiv. 1.62 in.)
Shoulder to Centre (C)
17.780
mm
+/- 0.0051
Checking Balls - 25.4x12.692x41.148 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-02540-S440
Checking Balls - 25.4x12.692x41.148 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$395.59 AUD
$474.71 AUD $395.59 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
25.400
mm
+/- 0.0127
(Equiv. 1 in.)
Shank Diameter (D)
12.692
mm
+/- 0.0051
(Equiv. 0.5 in.)
Base to Centre (B)
41.148
mm
+/- 0.1270
(Equiv. 1.62 in.)
Shoulder to Centre (C)
17.780
mm
+/- 0.0051
Checking Balls - 25.4x12.692x41.148 mm - Stainless Steel
Material: Stainless Steel   
Part Number: BCHK-02540-S440
Checking Balls - 25.4x12.692x41.148 mm - Stainless Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$395.59 AUD
$474.71 AUD $395.59 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.