Retaining Ring for Bores
DIN 472 (Current)
- Material
- Stainless Steel, Carbon Steel
- Finish
- Passivated, Plain, Zinc Plated, Phosphate
- Size range
- 8–100
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Select sizes and quantities — 45 confirmed sizes to DIN 472
Material
Finish
| dNominal Diameter (mm) | d₂Groove Diameter (mm) | mGroove Width (mm) | sRing Thickness (mm) | tGroove Depth (mm) | bLug Width (mm) | MOQ | Quantity and inquiry |
|---|---|---|---|---|---|---|---|
| 36 | 38 | 1.6 | 1.5 | 1 | 3.5 | 400 | |
| 38 | 40 | 1.6 | 1.5 | 1 | 3.7 | 400 | |
| 40 | 42.5 | 1.85 | 1.75 | 1.25 | 3.9 | 400 | |
| 42 | 44.5 | 1.85 | 1.75 | 1.25 | 4.1 | 400 | |
| 45 | 47.5 | 1.85 | 1.75 | 1.25 | 4.3 | 400 | |
| 48 | 50.5 | 1.85 | 1.75 | 1.25 | 4.5 | 400 | |
| 50 | 53 | 2.15 | 2 | 1.5 | 4.6 | 400 | |
| 52 | 55 | 2.15 | 2 | 1.5 | 4.7 | 400 | |
| 55 | 58 | 2.15 | 2 | 1.5 | 5 | 400 | |
| 56 | 59 | 2.15 | 2 | 1.5 | 5.1 | 400 | |
| 58 | 61 | 2.15 | 2 | 1.5 | 5.2 | 400 | |
| 60 | 63 | 2.15 | 2 | 1.5 | 5.4 | 400 | |
| 62 | 65 | 2.15 | 2 | 1.5 | 5.5 | 400 | |
| 63 | 66 | 2.15 | 2 | 1.5 | 5.6 | 400 | |
| 65 | 68 | 2.65 | 2.5 | 1.5 | 5.8 | 400 | |
| 68 | 71 | 2.65 | 2.5 | 1.5 | 6.1 | 400 |
Showing 16 of 45 sizes
dNominal Diameter (mm)36
d₂Groove Diameter (mm)38
mGroove Width (mm)1.6
sRing Thickness (mm)1.5
tGroove Depth (mm)1
bLug Width (mm)3.5
MOQ400
38 × 40 × 1.6 × 1.5 × 1 × 3.7 × 40.8 × 5.5 × 2.5 × 3
dNominal Diameter (mm)38
d₂Groove Diameter (mm)40
mGroove Width (mm)1.6
sRing Thickness (mm)1.5
tGroove Depth (mm)1
bLug Width (mm)3.7
MOQ400
40 × 42.5 × 1.85 × 1.75 × 1.25 × 3.9 × 43.5 × 5.8 × 2.5 × 3.8
dNominal Diameter (mm)40
d₂Groove Diameter (mm)42.5
mGroove Width (mm)1.85
sRing Thickness (mm)1.75
tGroove Depth (mm)1.25
bLug Width (mm)3.9
MOQ400
42 × 44.5 × 1.85 × 1.75 × 1.25 × 4.1 × 45.5 × 5.9 × 2.5 × 3.8
dNominal Diameter (mm)42
d₂Groove Diameter (mm)44.5
mGroove Width (mm)1.85
sRing Thickness (mm)1.75
tGroove Depth (mm)1.25
bLug Width (mm)4.1
MOQ400
45 × 47.5 × 1.85 × 1.75 × 1.25 × 4.3 × 48.5 × 6.2 × 2.5 × 3.8
dNominal Diameter (mm)45
d₂Groove Diameter (mm)47.5
mGroove Width (mm)1.85
sRing Thickness (mm)1.75
tGroove Depth (mm)1.25
bLug Width (mm)4.3
MOQ400
48 × 50.5 × 1.85 × 1.75 × 1.25 × 4.5 × 51.5 × 6.4 × 2.5 × 3.8
dNominal Diameter (mm)48
d₂Groove Diameter (mm)50.5
mGroove Width (mm)1.85
sRing Thickness (mm)1.75
tGroove Depth (mm)1.25
bLug Width (mm)4.5
MOQ400
50 × 53 × 2.15 × 2 × 1.5 × 4.6 × 54.2 × 6.5 × 2.5 × 4.5
dNominal Diameter (mm)50
d₂Groove Diameter (mm)53
mGroove Width (mm)2.15
sRing Thickness (mm)2
tGroove Depth (mm)1.5
bLug Width (mm)4.6
MOQ400
52 × 55 × 2.15 × 2 × 1.5 × 4.7 × 56.2 × 6.7 × 2.5 × 4.5
dNominal Diameter (mm)52
d₂Groove Diameter (mm)55
mGroove Width (mm)2.15
sRing Thickness (mm)2
tGroove Depth (mm)1.5
bLug Width (mm)4.7
MOQ400
55 × 58 × 2.15 × 2 × 1.5 × 5 × 59.2 × 6.8 × 2.5 × 4.5
dNominal Diameter (mm)55
d₂Groove Diameter (mm)58
mGroove Width (mm)2.15
sRing Thickness (mm)2
tGroove Depth (mm)1.5
bLug Width (mm)5
MOQ400
56 × 59 × 2.15 × 2 × 1.5 × 5.1 × 60.2 × 6.8 × 2.5 × 4.5
dNominal Diameter (mm)56
d₂Groove Diameter (mm)59
mGroove Width (mm)2.15
sRing Thickness (mm)2
tGroove Depth (mm)1.5
bLug Width (mm)5.1
MOQ400
58 × 61 × 2.15 × 2 × 1.5 × 5.2 × 62.2 × 6.9 × 2.5 × 4.5
dNominal Diameter (mm)58
d₂Groove Diameter (mm)61
mGroove Width (mm)2.15
sRing Thickness (mm)2
tGroove Depth (mm)1.5
bLug Width (mm)5.2
MOQ400
60 × 63 × 2.15 × 2 × 1.5 × 5.4 × 64.2 × 7.3 × 2.5 × 4.5
dNominal Diameter (mm)60
d₂Groove Diameter (mm)63
mGroove Width (mm)2.15
sRing Thickness (mm)2
tGroove Depth (mm)1.5
bLug Width (mm)5.4
MOQ400
62 × 65 × 2.15 × 2 × 1.5 × 5.5 × 66.2 × 7.3 × 2.5 × 4.5
dNominal Diameter (mm)62
d₂Groove Diameter (mm)65
mGroove Width (mm)2.15
sRing Thickness (mm)2
tGroove Depth (mm)1.5
bLug Width (mm)5.5
MOQ400
63 × 66 × 2.15 × 2 × 1.5 × 5.6 × 67.2 × 7.3 × 2.5 × 4.5
dNominal Diameter (mm)63
d₂Groove Diameter (mm)66
mGroove Width (mm)2.15
sRing Thickness (mm)2
tGroove Depth (mm)1.5
bLug Width (mm)5.6
MOQ400
65 × 68 × 2.65 × 2.5 × 1.5 × 5.8 × 69.2 × 7.6 × 3 × 4.5
dNominal Diameter (mm)65
d₂Groove Diameter (mm)68
mGroove Width (mm)2.65
sRing Thickness (mm)2.5
tGroove Depth (mm)1.5
bLug Width (mm)5.8
MOQ400
68 × 71 × 2.65 × 2.5 × 1.5 × 6.1 × 72.5 × 7.8 × 3 × 4.5
dNominal Diameter (mm)68
d₂Groove Diameter (mm)71
mGroove Width (mm)2.65
sRing Thickness (mm)2.5
tGroove Depth (mm)1.5
bLug Width (mm)6.1
MOQ400
Product details
- Description
- This internal retaining ring, manufactured to DIN 472, snaps into a machined groove inside a bore to axially locate bearings, shafts, or other components. The ring features two lugs with holes for installation and removal pliers. It is supplied in carbon steel with phosphate or zinc-plated finish, or in stainless steel with plain or passivated finish. Bore diameters from 8 mm to 42 mm are available. When requesting a quotation, specify the bore diameter, material, and finish.
- Features
- Internal type with lugs and holes for plier installation · Snaps into a machined groove inside the bore · Available in bore diameters 8 mm to 42 mm · Supplied in carbon steel (phosphate or zinc plated) and stainless steel (plain or passivated)
- Applications
- Axially locating bearings and components on shafts, Retaining parts inside bores, Assembly where a shoulder is not machined
Order assurance
Confirmed for the quoted product and order.Reports & inspection
Agreed in the quotation.
- EN 10204 3.1 material certificate
- Dimensional inspection report
- Certificate of conformity
- Mechanical test report
- Chemical analysis report
- Coating inspection report
- Batch and lot traceability
Packaging & delivery
Options we supply.
- Bulk carton packing
- Small boxes with outer cartons
- Palletized shipment
- Fumigation-free pallets
- Inner poly bags
- Buyer branding and labels
Product questions
What sizes of Retaining Ring for Bores do you supply?
Execution standard: DIN 472. The confirmed specification table covers 8–100 diameters. Use the specification table to select the exact variant required for quotation.
Which materials, grades and finishes can I order?
Material: Stainless Steel, Carbon Steel; Finish: Passivated, Plain, Zinc Plated, Phosphate. Availability should be confirmed against the selected specification and order quantity.
Where are these retaining rings typically used?
Typical applications include Axially locating bearings and components on shafts, Retaining parts inside bores, Assembly where a shoulder is not machined. Final suitability depends on the selected material, grade, finish and operating conditions.







