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Subject to satisfactory calculations we can adapt a stock bearing preload disc spring.

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Image of slotted type bearing preload disc springs

AKA Slotted Bearing Preload Washers

30 different sizes in stock from 9.8mm up to 94.5mm outside diameter

This range of bearing preload disc springs (washers) have a slotted inside profile which gives a different force/deflection profile to plain type preload disc springs.

These preload disc springs are manufactured from CK75 Carbon Steel (DIN 1.1248) with a zinc phosphate and oiled finish providing a good selection of dimensions to suit most standard roller bearings.

Slotted type preload disc springs can also be useful in other applications. The relatively low forces of the preloaded disc springs means they could act as light duty linkages or mechanisms.

A note of caution however when considering columns of these disc springs. A ratio of cone height/thickness in excess of 1.50 could cause springs to invert and the column to collapse.

Please note: measurements are in millimeters & weight in kilograms.
Ball Bearing
Ref. No.
Disc Spring
Code No.
Outer Dia.
(De)
Inner Dia.
(Di)
Thickness
(t)
Cone Height
(ho)
Total Height
(lo)
Cone Height Force (N)
75% Defl.
Weight per
1000 pcs.
Thick. Ratio
623 P9862015 9.8 6.2 0.15 0.45 0.60 3.00 13 0.05
624 P1287202 12.8 7.2 0.20 0.45 0.65 2.25 18 0.13
625
634
P15882025 15.8 8.2 0.25 0.50 0.75 2.00 20 0.28
626
635
P18892025 18.8 9.2 0.25 0.75 1.00 3.00 20 0.44
607 P188102025 18.8 10.2 0.25 0.80 1.05 3.20 24 0.32
608
627
P218123025 21.8 12.3 0.25 1.00 1.25 4.00 24 0.42
609 P23714303 23.7 14.3 0.30 1.00 1.30 3.33 26 0.66
6000
629
P25714303 25.7 14.3 0.30 1.10 1.40 3.66 29 0.70
6001 P277173035 27.7 17.3 0.35 1.10 1.45 3.14 32 0.79
6200 P297174035 29.7 17.4 0.35 1.20 1.55 3.43 33 1.20
6002
6201
P317204035 31.7 20.4 0.35 1.20 1.55 3.43 34 1.00
6300 P346204035 34.6 20.4 0.35 1.30 1.65 3.71 33 1.70
6003
6202
P346224035 34.6 22.4 0.35 1.20 1.55 3.43 33 1.50
6301 P36620404 36.6 20.4 0.40 1.50 1.90 3.75 36 2.30
6203 P39625504 39.6 25.5 0.40 1.50 1.90 3.75 39 1.90
6004
6302
P416255045 41.6 25.5 0.45 1.60 2.05 3.55 40 2.50
6005
6204
6303
P465305045 46.5 30.5 0.45 1.60 2.05 3.55 45 2.80
6205
6304
P515355045 51.5 35.5 0.45 1.65 2.10 3.55 48 3.10
6006 P545405045 54.5 40.5 0.45 1.70 2.15 3.78 54 3.20
6007
6206
6305
P615405053 61.5 40.5 0.55 2.00 2.55 3.64 55 6.10
6008 P67550505 67.5 50.5 0.50 2.10 2.60 4.20 80 5.50
6306 P71545506 71.5 45.5 0.60 2.30 2.90 3.83 75 9.60
6207 P71550508 71.5 50.5 0.60 2.30 2.90 3.83 130 8.20
6009 P74555506 74.5 55.5 0.60 2.30 2.90 3.83 93 7.60
6307 P79550507 79.5 50.5 0.70 2.40 3.10 3.43 85 16.30
6010
6208
P79555507 79.5 55.5 0.70 2.20 2.90 3.14 130 14.50
6209 P845605075 84.5 60.5 0.75 2.40 3.15 3.20 80 13.00
6308 P89560508 89.5 60.5 0.80 2.50 3.30 3.12 106 18.10
6011
6210
P89565508 89.5 65.5 0.80 2.60 3.40 3.25 193 16.00
6012 P94575508 94.5 75.5 0.80 2.65 3.45 3.31 210 13.30

Please note: measurements are in millimeters & weight in kilograms.


Please use our disc spring enquiry form for competitive quotes and stock enquiries.



Institute of Spring TechnologyMember of UK Spring Manufacturers AssociationBelleville QualityBritish Valve and Actuator Association

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